DTC B119F:2B [CONNECTIVITY MASTER UNIT (TYPE-B)]

id1602a9000400

Outline

System malfunction location

GPS antenna signal circuit malfunction

Detection condition

•  The connectivity master unit (CMU) detects a short to ground in the GPS antenna signal circuit.

Fail-safe

Not applicable

Possible cause

•  GPS antenna connector or terminal malfunction

•  Malfunction in connectivity master unit (CMU) connector or terminal

•  GPS antenna feeder malfunction

―  Short to ground in GPS antenna signal circuit

•  GPS antenna malfunction

•  Connectivity master unit (CMU) malfunction

System malfunction location	GPS antenna signal circuit malfunction
Detection condition	• The connectivity master unit (CMU) detects a short to ground in the GPS antenna signal circuit.
Fail-safe	Not applicable
Possible cause	• GPS antenna connector or terminal malfunction • Malfunction in connectivity master unit (CMU) connector or terminal • GPS antenna feeder malfunction ― Short to ground in GPS antenna signal circuit • GPS antenna malfunction • Connectivity master unit (CMU) malfunction

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY IF GNSS INFORMATION CAN BE RECEIVED

•  Switch the ignition ON (engine off) and display the navigation screen of the center display

•  Is the current position displayed?

Yes

Verify that the repairs have been completed.

No

Go to the next step.

2

VERIFY GNSS INFORMATION RECEPTION CONDITION

Note

•  If there is no response, move the vehicle outside (in environment where radio signal is not interrupted or obstructed) and verify the display again.

•  Perform the [Navigation System Inspection] using the diagnostic assist function.
(See DIAGNOSTIC ASSIST FUNCTION [CONNECTIVITY MASTER UNIT (TYPE-B) (E)].)

•  Verify the number of receptions display for [GPS+GLONASS+QZSS] on the inspection result screen.

•  Is the number of receptions 1 or more?

Yes

Verify that the repairs have been completed.

No

Go to the next step.

3

INSPECT GPS ANTENNA 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 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.

5

INSPECT GPS ANTENNA 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.

(Refer to the [GLOBAL POSITIONING SYSTEM (GPS) ANTENNA FEEDER REMOVAL/INSTALLATION] in the workshop manual)

6

DETERMINE MALFUNCTIONING LOCATION

Note

•  If there is no response, move the vehicle outside (in environment where radio signal is not interrupted or obstructed) and verify the display again.

•  Replace the GPS antenna.
(Refer to the [GLOBAL POSITIONING SYSTEM (GPS) ANTENNA FEEDER REMOVAL/INSTALLATION] in the workshop manual)

•  Perform the [Navigation System Inspection] using the diagnostic assist function.
(See DIAGNOSTIC ASSIST FUNCTION [CONNECTIVITY MASTER UNIT (TYPE-B) (E)].)

•  Verify the number of receptions display for [GPS+GLONASS+QZSS] on the inspection result screen.

•  Is the number of receptions 1 or more?

Yes

Verify that the repairs have been completed.

No

Put back the GPS antenna that was replaced, replace the connectivity master unit (CMU), and perform the repair completion verification.

(Refer to the [GLOBAL POSITIONING SYSTEM (GPS) ANTENNA FEEDER REMOVAL/INSTALLATION] in the workshop manual)

(Refer to the [CONNECTIVITY MASTER UNIT (CMU) 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)

•  Is a DTC displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

Step	Inspection	Results	Action
1	VERIFY IF GNSS INFORMATION CAN BE RECEIVED • Switch the ignition ON (engine off) and display the navigation screen of the center display • Is the current position displayed?	Yes	Verify that the repairs have been completed.
1		No	Go to the next step.
2	VERIFY GNSS INFORMATION RECEPTION CONDITION Note • If there is no response, move the vehicle outside (in environment where radio signal is not interrupted or obstructed) and verify the display again. • Perform the [Navigation System Inspection] using the diagnostic assist function. (See DIAGNOSTIC ASSIST FUNCTION [CONNECTIVITY MASTER UNIT (TYPE-B) (E)].) • Verify the number of receptions display for [GPS+GLONASS+QZSS] on the inspection result screen. • Is the number of receptions 1 or more?	Yes	Verify that the repairs have been completed.
2		No	Go to the next step.
3	INSPECT GPS ANTENNA 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.
3		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	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.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT GPS ANTENNA 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.
5		No	Repair or replace the malfunctioning location and perform the repair completion verification. (Refer to the [GLOBAL POSITIONING SYSTEM (GPS) ANTENNA FEEDER REMOVAL/INSTALLATION] in the workshop manual)
6	DETERMINE MALFUNCTIONING LOCATION Note • If there is no response, move the vehicle outside (in environment where radio signal is not interrupted or obstructed) and verify the display again. • Replace the GPS antenna. (Refer to the [GLOBAL POSITIONING SYSTEM (GPS) ANTENNA FEEDER REMOVAL/INSTALLATION] in the workshop manual) • Perform the [Navigation System Inspection] using the diagnostic assist function. (See DIAGNOSTIC ASSIST FUNCTION [CONNECTIVITY MASTER UNIT (TYPE-B) (E)].) • Verify the number of receptions display for [GPS+GLONASS+QZSS] on the inspection result screen. • Is the number of receptions 1 or more?	Yes	Verify that the repairs have been completed.
6		No	Put back the GPS antenna that was replaced, replace the connectivity master unit (CMU), and perform the repair completion verification. (Refer to the [GLOBAL POSITIONING SYSTEM (GPS) ANTENNA FEEDER REMOVAL/INSTALLATION] in the workshop manual) (Refer to the [CONNECTIVITY MASTER UNIT (CMU) 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)
Repair completion verification 1		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) • Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.