DTC U0264:00 [CONNECTIVITY MASTER UNIT]

id1602a1008100

Without Parking Assist System, Without 360° View Monitor System

Outline

System malfunction location

Communication error with rear mount camera

Detection condition

•  The connectivity master unit (CMU) detects a communication interruption or communication error with the rear mount camera for approx. 2 s.

Fail-safe

Not applicable

Possible cause

•  Rear mount camera connector or terminal malfunction

•  Connectivity master unit (CMU) connector or terminal malfunction

•  Short to ground in rear mount camera signal circuit

•  Short to power supply in rear mount camera signal circuit

•  Open circuit in rear mount camera signal circuit

•  Rear mount camera signal circuit shield wire malfunction

•  Rear mount camera malfunction

•  Connectivity master unit (CMU) malfunction

System malfunction location	Communication error with rear mount camera
Detection condition	• The connectivity master unit (CMU) detects a communication interruption or communication error with the rear mount camera for approx. 2 s.
Fail-safe	Not applicable
Possible cause	• Rear mount camera connector or terminal malfunction • Connectivity master unit (CMU) connector or terminal malfunction • Short to ground in rear mount camera signal circuit • Short to power supply in rear mount camera signal circuit • Open circuit in rear mount camera signal circuit • Rear mount camera signal circuit shield wire malfunction • Rear mount camera malfunction • Connectivity master unit (CMU) malfunction

Diagnostic procedure

Step	Inspection	Results	Action
1	VERIFY REPEATABILITY • Switch the ignition ON (engine off or on). • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Switch the ignition OFF, and then switch it ON (engine off or on) and wait for 30 s or more. • Perform the DTC inspection for the connectivity master unit (CMU). (Refer to the [DTC INSPECTION] in the workshop manual) • Is the same Pending DTC present?	Yes	Go to the next step.
No	Go to repair completion verification 2.
2	INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
3	INSPECT CONNECTIVITY MASTER UNIT (CMU) CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO GROUND • Inspect the applicable circuit for a short to ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Inspect the applicable circuit for a short to power supply. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for an open circuit. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
7	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT SHIELD WIRE FOR CONTINUITY WITH GROUND • Inspect the applicable circuit for continuity with the body ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is there continuity?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
8	DETERMINE MALFUNCTIONING LOCATION • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the DTC inspection for the connectivity master unit (CMU). (Refer to the [DTC INSPECTION] in the workshop manual) • Are other DTCs displayed that are the same as this DTC?	Yes	Replace the connectivity master unit (CMU) and perform the repair completion verification. (Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)
No	Replace the rear mount camera and perform the repair completion verification. (Refer to the [REAR MOUNT CAMERA REMOVAL/INSTALLATION] in the workshop manual)
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the DTC inspection for the connectivity master unit (CMU). (Refer to the [DTC INSPECTION] in the workshop manual) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the connectivity master unit (CMU), then go to the next step. (Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)
No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs ARE DISPLAYED • Perform the DTC inspection. (Refer to the [DTC INSPECTION] in the workshop manual) • Are other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
No	DTC troubleshooting completed.

With Parking Assist System

Outline

System malfunction location

Communication error with parking assist unit (optical)

Detection condition

•  The connectivity master unit (CMU) detects a communication interruption or communication error with the parking assist unit (optical) for approx. 11 s.

Fail-safe

Not applicable

Possible cause

•  Rear mount camera connector or terminal malfunction

•  Parking assist unit (optical) connector or terminal malfunction

•  Connectivity master unit (CMU) connector or terminal malfunction

•  Short to ground or open circuit in rear mount camera power supply circuit

•  Short to power supply, short to ground or open circuit in rear mount camera signal circuit

•  Rear mount camera signal circuit shield wire malfunction

•  Open circuit in rear mount camera ground circuit

•  Short to power supply, short to ground or open circuit in connectivity master unit (CMU) signal circuit

•  Connectivity master unit (CMU) signal circuit shield wire malfunction

•  Rear mount camera malfunction

•  Parking assist unit (optical) malfunction

•  Connectivity master unit (CMU) malfunction

System malfunction location	Communication error with parking assist unit (optical)
Detection condition	• The connectivity master unit (CMU) detects a communication interruption or communication error with the parking assist unit (optical) for approx. 11 s.
Fail-safe	Not applicable
Possible cause	• Rear mount camera connector or terminal malfunction • Parking assist unit (optical) connector or terminal malfunction • Connectivity master unit (CMU) connector or terminal malfunction • Short to ground or open circuit in rear mount camera power supply circuit • Short to power supply, short to ground or open circuit in rear mount camera signal circuit • Rear mount camera signal circuit shield wire malfunction • Open circuit in rear mount camera ground circuit • Short to power supply, short to ground or open circuit in connectivity master unit (CMU) signal circuit • Connectivity master unit (CMU) signal circuit shield wire malfunction • Rear mount camera malfunction • Parking assist unit (optical) malfunction • Connectivity master unit (CMU) malfunction

Diagnostic procedure

Step

Inspection

Results

Action

1

VERIFY REPEATABILITY

•  Switch the ignition ON (engine off or on).

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Switch the ignition OFF, and then switch it ON (engine off or on) and wait for 30 s or more.

•  Perform the DTC inspection for the connectivity master unit (CMU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is the same Pending DTC present?

Yes

Go to the next step.

No

Go to repair completion verification 2.

2

INSPECT PARKING ASSIST UNIT (OPTICAL) FOR MALFUNCTION

•  Perform the DTC inspection for the vehicle control module (VCM) and parking assist unit (optical).
(Refer to the [DTC INSPECTION] in the workshop manual))

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(Refer to the [DTC TABLE [VEHICLE CONTROL MODULE]] in the workshop manual)

(Refer to the [DTC TABLE [PARKING ASSIST UNIT (OPTICAL)]] in the workshop manual)

No

Go to the next step.

3

VERIFY REAR MOUNT CAMERA POWER SUPPLY CIRCUIT VOLTAGE

•  Measure the voltage at rear mount camera terminal D (vehicle wiring harness side).

•  Is voltage supplied?

Yes

Go to Step 9.

No

Go to the next step.

4

INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

5

INSPECT PARKING ASSIST UNIT (OPTICAL) CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

6

INSPECT REAR MOUNT CAMERA POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

7

INSPECT REAR MOUNT CAMERA POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

8

INSPECT REAR MOUNT CAMERA GROUND CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to Step 11.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

9

INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

10

INSPECT PARKING ASSIST UNIT (OPTICAL) CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

11

INSPECT CONNECTIVITY MASTER UNIT (CMU) CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

12

INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

13

INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

•  Inspect the applicable circuit for a short to power supply.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

14

INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

15

INSPECT FOR CONTINUITY BETWEEN REAR MOUNT CAMERA SIGNAL CIRCUIT SHIELD WIRE AND GROUND

•  Inspect the applicable circuit for continuity with the body ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

16

INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

17

INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

•  Inspect the applicable circuit for a short to power supply.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

18

INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

19

INSPECT FOR CONTINUITY BETWEEN CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT AND GROUND

•  Inspect the applicable circuit for continuity with the body ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

20

DETERMINE MALFUNCTIONING LOCATION

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the DTC inspection for the connectivity master unit (CMU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Are other DTCs displayed that are the same as this DTC?

Yes

Replace the connectivity master unit (CMU) and perform the repair completion verification.

(Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)

No

Replace the rear mount camera and perform the repair completion verification.

(Refer to the [REAR MOUNT CAMERA REMOVAL/INSTALLATION] in the workshop manual)

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the DTC inspection for the connectivity master unit (CMU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the connectivity master unit (CMU), then go to the next step.
(Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs ARE DISPLAYED

•  Perform the DTC inspection.
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Are other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY REPEATABILITY • Switch the ignition ON (engine off or on). • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Switch the ignition OFF, and then switch it ON (engine off or on) and wait for 30 s or more. • Perform the DTC inspection for the connectivity master unit (CMU). (Refer to the [DTC INSPECTION] in the workshop manual) • Is the same Pending DTC present?	Yes	Go to the next step.
No	Go to repair completion verification 2.
2	INSPECT PARKING ASSIST UNIT (OPTICAL) FOR MALFUNCTION • Perform the DTC inspection for the vehicle control module (VCM) and parking assist unit (optical). (Refer to the [DTC INSPECTION] in the workshop manual)) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (Refer to the [DTC TABLE [VEHICLE CONTROL MODULE]] in the workshop manual) (Refer to the [DTC TABLE [PARKING ASSIST UNIT (OPTICAL)]] in the workshop manual)
No	Go to the next step.
3	VERIFY REAR MOUNT CAMERA POWER SUPPLY CIRCUIT VOLTAGE • Measure the voltage at rear mount camera terminal D (vehicle wiring harness side). • Is voltage supplied?	Yes	Go to Step 9.
No	Go to the next step.
4	INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT PARKING ASSIST UNIT (OPTICAL) CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	INSPECT REAR MOUNT CAMERA POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Inspect the applicable circuit for a short to ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
7	INSPECT REAR MOUNT CAMERA POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for an open circuit. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
8	INSPECT REAR MOUNT CAMERA GROUND CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for an open circuit. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to Step 11.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
9	INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
10	INSPECT PARKING ASSIST UNIT (OPTICAL) CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
11	INSPECT CONNECTIVITY MASTER UNIT (CMU) CONNECTOR FOR MALFUNCTION • Inspect the applicable connector and terminal. (Refer to the [CONNECTOR INSPECTION] in the workshop manual) • Are the connector and terminal normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
12	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO GROUND • Inspect the applicable circuit for a short to ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
13	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Inspect the applicable circuit for a short to power supply. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
14	INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for an open circuit. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
15	INSPECT FOR CONTINUITY BETWEEN REAR MOUNT CAMERA SIGNAL CIRCUIT SHIELD WIRE AND GROUND • Inspect the applicable circuit for continuity with the body ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is there continuity?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
16	INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR SHORT TO GROUND • Inspect the applicable circuit for a short to ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
17	INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Inspect the applicable circuit for a short to power supply. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
18	INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR OPEN CIRCUIT • Inspect the applicable circuit for an open circuit. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is the circuit normal?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
19	INSPECT FOR CONTINUITY BETWEEN CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT AND GROUND • Inspect the applicable circuit for continuity with the body ground. (Refer to the [CIRCUIT INSPECTION] in the workshop manual) • Is there continuity?	Yes	Go to the next step.
No	Repair or replace the malfunctioning location and perform the repair completion verification.
20	DETERMINE MALFUNCTIONING LOCATION • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the DTC inspection for the connectivity master unit (CMU). (Refer to the [DTC INSPECTION] in the workshop manual) • Are other DTCs displayed that are the same as this DTC?	Yes	Replace the connectivity master unit (CMU) and perform the repair completion verification. (Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)
No	Replace the rear mount camera and perform the repair completion verification. (Refer to the [REAR MOUNT CAMERA REMOVAL/INSTALLATION] in the workshop manual)
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (Refer to the [CLEARING DTC] in the workshop manual) • Perform the DTC inspection for the connectivity master unit (CMU). (Refer to the [DTC INSPECTION] in the workshop manual) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the connectivity master unit (CMU), then go to the next step. (Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)
No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs ARE DISPLAYED • Perform the DTC inspection. (Refer to the [DTC INSPECTION] in the workshop manual) • Are other DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
No	DTC troubleshooting completed.

With 360° View Monitor System

Outline

System malfunction location

Communication error with 360°view monitor control module

Detection condition

•  The connectivity master unit (CMU) detects a communication interruption or communication error with the 360°view monitor control module for approx. 11 s.

Fail-safe

Not applicable

Possible cause

•  Rear mount camera connector or terminal malfunction

•  360°view monitor control module connector or terminal malfunction

•  Connectivity master unit (CMU) connector or terminal malfunction

•  Short to ground or open circuit in rear mount camera power supply circuit

•  Short to power supply, short to ground or open circuit in rear mount camera signal circuit

•  Rear mount camera signal circuit shield wire malfunction

•  Open circuit in rear mount camera ground circuit

•  Short to power supply, short to ground or open circuit in connectivity master unit (CMU) signal circuit

•  Connectivity master unit (CMU) signal circuit shield wire malfunction

•  Rear mount camera malfunction

•  360°view monitor control module malfunction

•  Connectivity master unit (CMU) malfunction

System malfunction location	Communication error with 360°view monitor control module
Detection condition	• The connectivity master unit (CMU) detects a communication interruption or communication error with the 360°view monitor control module for approx. 11 s.
Fail-safe	Not applicable
Possible cause	• Rear mount camera connector or terminal malfunction • 360°view monitor control module connector or terminal malfunction • Connectivity master unit (CMU) connector or terminal malfunction • Short to ground or open circuit in rear mount camera power supply circuit • Short to power supply, short to ground or open circuit in rear mount camera signal circuit • Rear mount camera signal circuit shield wire malfunction • Open circuit in rear mount camera ground circuit • Short to power supply, short to ground or open circuit in connectivity master unit (CMU) signal circuit • Connectivity master unit (CMU) signal circuit shield wire malfunction • Rear mount camera malfunction • 360°view monitor control module malfunction • Connectivity master unit (CMU) malfunction

Diagnostic procedure

Step

Inspection

Results

Action

1

VERIFY REPEATABILITY

•  Switch the ignition ON (engine off or on).

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Switch the ignition OFF, and then switch it ON (engine off or on) and wait for 30 s or more.

•  Perform the DTC inspection for the connectivity master unit (CMU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is the same Pending DTC present?

Yes

Go to the next step.

No

Go to repair completion verification 2.

2

INSPECT 360°VIEW MONITOR CONTROL MODULE FOR MALFUNCTION

•  Perform the DTC inspection for the vehicle control module (VCM) and 360°view monitor control module.
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(Refer to the [DTC TABLE [VEHICLE CONTROL MODULE]] in the workshop manual)

(Refer to the [DTC TABLE [360°VIEW MONITOR CONTROL MODULE]] in the workshop manual)

No

Go to the next step.

3

VERIFY REAR MOUNT CAMERA POWER SUPPLY CIRCUIT VOLTAGE

•  Measure the voltage at rear mount camera terminal D (vehicle wiring harness side).

•  Is voltage supplied?

Yes

Go to Step 9.

No

Go to the next step.

4

INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

5

INSPECT 360°VIEW MONITOR CONTROL MODULE CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

6

INSPECT REAR MOUNT CAMERA POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

7

INSPECT REAR MOUNT CAMERA POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

8

INSPECT REAR MOUNT CAMERA GROUND CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to Step 11.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

9

INSPECT REAR MOUNT CAMERA CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

10

INSPECT 360°VIEW MONITOR CONTROL MODULE CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

11

INSPECT CONNECTIVITY MASTER UNIT (CMU) CONNECTOR FOR MALFUNCTION

•  Inspect the applicable connector and terminal.
(Refer to the [CONNECTOR INSPECTION] in the workshop manual)

•  Are the connector and terminal normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

12

INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

13

INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

•  Inspect the applicable circuit for a short to power supply.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

14

INSPECT REAR MOUNT CAMERA SIGNAL CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

15

INSPECT FOR CONTINUITY BETWEEN REAR MOUNT CAMERA SIGNAL CIRCUIT SHIELD WIRE AND GROUND

•  Inspect the applicable circuit for continuity with the body ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

16

INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR SHORT TO GROUND

•  Inspect the applicable circuit for a short to ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

17

INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

•  Inspect the applicable circuit for a short to power supply.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

18

INSPECT CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT FOR OPEN CIRCUIT

•  Inspect the applicable circuit for an open circuit.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is the circuit normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

19

INSPECT FOR CONTINUITY BETWEEN CONNECTIVITY MASTER UNIT (CMU) SIGNAL CIRCUIT AND GROUND

•  Inspect the applicable circuit for continuity with the body ground.
(Refer to the [CIRCUIT INSPECTION] in the workshop manual)

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location and perform the repair completion verification.

20

DETERMINE MALFUNCTIONING LOCATION

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the DTC inspection for the connectivity master unit (CMU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Are other DTCs displayed that are the same as this DTC?

Yes

Replace the connectivity master unit (CMU) and perform the repair completion verification.

(Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)

No

Replace the rear mount camera and perform the repair completion verification.

(Refer to the [REAR MOUNT CAMERA REMOVAL/INSTALLATION] in the workshop manual)

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(Refer to the [CLEARING DTC] in the workshop manual)

•  Perform the DTC inspection for the connectivity master unit (CMU).
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(Refer to the [CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW] in the workshop manual)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the connectivity master unit (CMU), then go to the next step.
(Refer to the [CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION] in the workshop manual)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs ARE DISPLAYED

•  Perform the DTC inspection.
(Refer to the [DTC INSPECTION] in the workshop manual)

•  Are other DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.