Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK TOUCH SENSOR INPUT SIGNAL

Turn ignition switch OFF.

Check voltage between touch sensor LH harness connector and automatic back door control module harness connector.

(+)		(-)		Condition		Voltage (Approx.)
Touch sensor LH		Automatic back door control module
Connector	Terminal	Connector	Terminal
D556	1	B55	13	Touch sensor LH	Detect obstruction	1.8 - 5 V
					Other than above	2.72 - 7.27 V

Is the inspection result normal?

YES

GO TO 3.

GO TO 2.

CHECK TOUCH SENSOR LH CIRCUIT

Disconnect automatic back door control module and touch sensor LH connector.

Check continuity between automatic back door control module harness connector and touch sensor LH harness connector.

Automatic back door control module		Touch sensor LH		Continuity
Connector	Terminal	Connector	Terminal	Continuity
B55	2	D556	1	Yes

Check continuity between automatic back door control module harness connector and ground.

Automatic back door control module		Ground	Continuity
Connector	Terminal
B55	2		No

Is the inspection result normal?

YES

Replace automatic back door control module. Refer to Removal and Installation .

Repair or replace harness.

CHECK TOUCH SENSOR LH GROUND CIRCUIT 1

Disconnect automatic back door control module and touch sensor LH connector.

Check continuity between automatic back door control module harness connector and touch sensor LH harness connector.

Automatic back door control module		Touch sensor LH		Continuity
Connector	Terminal	Connector	Terminal	Continuity
B55	13	D556	2	Yes

Check continuity between automatic back door control module harness connector and ground.

Automatic back door control module		Ground	Continuity
Connector	Terminal
B55	13		No

Is the inspection result normal?

YES

GO TO 4.

Repair or replace harness.

CHECK TOUCH SENSOR LH GROUND CIRCUIT 2

Connect automatic back door control module and touch sensor LH connector.

Check voltage between automatic back door control module harness connector and ground.

(+)		(-)	Voltage (Approx.)
Automatic back door control module
Connector	Terminal
B55	13	Ground	0.01 - 0 V

Is the inspection result normal?

YES

GO TO 5.

Repair or replace harness.

CHECK TOUCH SENSOR LH
Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 6.

NO

Replace touch sensor LH. Refer to Removal and Installation .
CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .

Inspection End.