DTC B1495:1C [POWER LIFTGATE (PLG) CONTROL MODULE]

id0902o8977600

Description

Foot-motion detection unit power supply voltage low or high input

Detection condition

•  Foot-motion detection unit detects that the power supply circuit voltage that is less than the specification

•  Foot-motion detection unit detects that the power supply circuit voltage of specification or more

Fail-safe function

•  Stops the hands-free function operation.

Possible cause

•  DTCs are stored in the PCM.

―  Generator system malfunction

•  DTCs are stored in the rear body control module (RBCM).

•  Battery malfunction

•  Foot-motion detection unit connector malfunction

•  Open circuit in the wiring harness between the foot-motion detection unit terminal 1A and body ground

•  Rear body control module (RBCM) connector malfunction

•  Short to body ground in wiring harness between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B

•  Open circuit in wiring harness between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B

•  Foot-motion detection unit malfunction

Description	Foot-motion detection unit power supply voltage low or high input
Detection condition	• Foot-motion detection unit detects that the power supply circuit voltage that is less than the specification • Foot-motion detection unit detects that the power supply circuit voltage of specification or more
Fail-safe function	• Stops the hands-free function operation.
Possible cause	• DTCs are stored in the PCM. ― Generator system malfunction • DTCs are stored in the rear body control module (RBCM). • Battery malfunction • Foot-motion detection unit connector malfunction • Open circuit in the wiring harness between the foot-motion detection unit terminal 1A and body ground • Rear body control module (RBCM) connector malfunction • Short to body ground in wiring harness between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B • Open circuit in wiring harness between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B • Foot-motion detection unit malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT PCM DTCs (INSPECT GENERATOR CIRCUIT)

•  Retrieve the PCM DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

(See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].)

(See ON-BOARD DIAGNOSTIC TEST [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)

(See ON-BOARD DIAGNOSTIC TEST [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)

•  Are any DTCs displayed?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [PCM (SKYACTIV-D 2.2)].)

(See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

(See DTC TABLE [PCM (SKYACTIV-G 2.5T)].)

(See DTC TABLE [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)

(See DTC TABLE [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)

No

Go to the next step.

2

INSPECT REAR BODY CONTROL MODULE (RBCM) DTCs

•  Retrieve the rear body control module (RBCM) DTCs using the M-MDS.
(See DTC INSPECTION [REAR BODY CONTROL MODULE (RBCM)].)

•  Are any DTCs displayed?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)].)

No

Go to the next step.

3

INSPECT BATTERY

•  Inspect the battery.
(See BATTERY INSPECTION.)

•  Is the battery normal?

Yes

Go to the next step.

No

Replace or charge the battery.

(See BATTERY RECHARGING.)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

(See BATTERY REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)

(See BATTERY REMOVAL/INSTALLATION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)

(See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

Then go to Step 9.

4

VERIFY FOOT-MOTION DETECTION UNIT CONNECTOR CONDITION

•  Switch the ignition off.

•  Disconnect the negative battery terminal.
(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

•  Disconnect the foot-motion detection unit connector.
(See FOOT-MOTION DETECTION UNIT REMOVAL/INSTALLATION.)

•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 9.

5

INSPECT FOOT-MOTION DETECTION UNIT GROUND CIRCUIT FOR OPEN CIRCUIT

•  Verify that the foot-motion detection unit connector is disconnected.

•  Inspect for continuity between the foot-motion detection unit terminal 1A (wiring harness-side) and battery positive terminal.

•  Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between foot-motion detection unit terminal 1A and body ground.

If there is a common connector:

•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

•  Repair or replace the malfunctioning part.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to Step 9.

6

VERIFY REAR BODY CONTROL MODULE (RBCM) CONNECTOR CONDITION

•  Disconnect the rear body control module (RBCM) connector.

•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.

•  Is the connector normal?

Yes

Go to the next step.

No

Repair or replace the connector, then go to Step 9.

7

INSPECT FOOT-MOTION DETECTION UNIT POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

•  Verify that the foot-motion detection unit and rear body control module (RBCM) connectors are disconnected.

•  Inspect for continuity between the rear body control module (RBCM) terminal 4F (wiring harness-side) and body ground.

•  Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B.

If there is a common connector:

•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.

•  Repair or replace the malfunctioning part.

If there is no common connector:

•  Repair or replace the wiring harness which has a short to ground.

Go to Step 9.

No

Go to the next step.

8

INSPECT FOOT-MOTION DETECTION UNIT POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

•  Verify that the foot-motion detection unit and rear body control module (RBCM) connectors are disconnected.

•  Inspect for continuity between the rear body control module (RBCM) terminal 4F (wiring harness-side) and foot-motion detection unit terminal 1B (wiring harness-side).

•  Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B.

If there is a common connector:

•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

•  Repair or replace the malfunctioning part.

If there is no common connector:

•  Repair or replace the wiring harness which has an open circuit.

Go to the next step.

9

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Always reconnect all disconnected connectors.

•  Connect the negative battery terminal.
(See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

•  Clear the DTC for the power liftgate (PLG) control module using the M-MDS.
(See CLEARING DTC [POWER LIFTGATE (PLG) CONTROL MODULE].)

•  Switch the ignition off and wait for 2 s or more.

•  Retrieve the power liftgate (PLG) control module DTCs using the M-MDS.
(See DTC INSPECTION [POWER LIFTGATE (PLG) CONTROL MODULE].)

•  Is the same Pending DTC present?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the foot-motion detection unit.
(See FOOT-MOTION DETECTION UNIT REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

10

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [POWER LIFTGATE (PLG) CONTROL MODULE].)

No

DTC troubleshooting completed.

STEP	INSPECTION		ACTION
1	INSPECT PCM DTCs (INSPECT GENERATOR CIRCUIT) • Retrieve the PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) (See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].) (See ON-BOARD DIAGNOSTIC TEST [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See ON-BOARD DIAGNOSTIC TEST [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) • Are any DTCs displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].) (See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) (See DTC TABLE [PCM (SKYACTIV-G 2.5T)].) (See DTC TABLE [PCM (WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See DTC TABLE [PCM (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].)
1		No	Go to the next step.
2	INSPECT REAR BODY CONTROL MODULE (RBCM) DTCs • Retrieve the rear body control module (RBCM) DTCs using the M-MDS. (See DTC INSPECTION [REAR BODY CONTROL MODULE (RBCM)].) • Are any DTCs displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)].)
2		No	Go to the next step.
3	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION.) • Is the battery normal?	Yes	Go to the next step.
3		No	Replace or charge the battery. (See BATTERY RECHARGING.) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See BATTERY REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See BATTERY REMOVAL/INSTALLATION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].) Then go to Step 9.
4	VERIFY FOOT-MOTION DETECTION UNIT CONNECTOR CONDITION • Switch the ignition off. • Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Disconnect the foot-motion detection unit connector. (See FOOT-MOTION DETECTION UNIT REMOVAL/INSTALLATION.) • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
4		No	Repair or replace the connector, then go to Step 9.
5	INSPECT FOOT-MOTION DETECTION UNIT GROUND CIRCUIT FOR OPEN CIRCUIT • Verify that the foot-motion detection unit connector is disconnected. • Inspect for continuity between the foot-motion detection unit terminal 1A (wiring harness-side) and battery positive terminal. • Is there continuity?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between foot-motion detection unit terminal 1A and body ground. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 9.
6	VERIFY REAR BODY CONTROL MODULE (RBCM) CONNECTOR CONDITION • Disconnect the rear body control module (RBCM) connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is the connector normal?	Yes	Go to the next step.
6		No	Repair or replace the connector, then go to Step 9.
7	INSPECT FOOT-MOTION DETECTION UNIT POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that the foot-motion detection unit and rear body control module (RBCM) connectors are disconnected. • Inspect for continuity between the rear body control module (RBCM) terminal 4F (wiring harness-side) and body ground. • Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has a short to ground. Go to Step 9.
7		No	Go to the next step.
8	INSPECT FOOT-MOTION DETECTION UNIT POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Verify that the foot-motion detection unit and rear body control module (RBCM) connectors are disconnected. • Inspect for continuity between the rear body control module (RBCM) terminal 4F (wiring harness-side) and foot-motion detection unit terminal 1B (wiring harness-side). • Is there continuity?	Yes	Go to the next step.
8		No	Refer to the wiring diagram and verify whether or not there is a common connector between rear body control module (RBCM) terminal 4F and foot-motion detection unit terminal 1B. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to the next step.
9	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Clear the DTC for the power liftgate (PLG) control module using the M-MDS. (See CLEARING DTC [POWER LIFTGATE (PLG) CONTROL MODULE].) • Switch the ignition off and wait for 2 s or more. • Retrieve the power liftgate (PLG) control module DTCs using the M-MDS. (See DTC INSPECTION [POWER LIFTGATE (PLG) CONTROL MODULE].) • Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the foot-motion detection unit. (See FOOT-MOTION DETECTION UNIT REMOVAL/INSTALLATION.) Go to the next step.
9		No	Go to the next step.
10	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [POWER LIFTGATE (PLG) CONTROL MODULE].)
10		No	DTC troubleshooting completed.