Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK STEERING SWITCH SIGNAL B CIRCUIT

Disconnect AV control unit connector and spiral cable connector.

Check continuity between AV control unit harness connector and spiral cable harness connector.

CONTINUITY REFERENCE CHART

AV control unit		Spiral cable		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M171	16	M33	31	Existed

Check continuity between AV control unit harness connector and ground.

CONTINUITY REFERENCE CHART

AV control unit		Ground	Continuity
Connector	Terminal
M171	16		Not existed

Is the inspection result normal?

YES: GO TO 2.

NO: Repair harness or connector.

CHECK SPIRAL CABLE
Check spiral cable.

Is the inspection result normal?

YES: GO TO 3.

NO: Replace spiral cable. Refer to , "EXPLODED VIEW ".

CHECK AV CONTROL UNIT VOLTAGE

Connect AV control unit connector and spiral cable connector.
Turn ignition switch ON.

Check voltage between AV control unit harness connector.

VOLTAGE REFERENCE CHART

(+)		(-)		Voltage (Approx.)
AV control unit
Connector	Terminal	Connector	Terminal
M171	16	M171	15	3.3 V

Is the inspection result normal?

YES: GO TO 4.

NO: Replace AV control unit. Refer to "EXPLODED VIEW ".

CHECK STEERING SWITCH
1. Turn ignition switch OFF.
2. Check steering switch. Refer to "COMPONENT INSPECTION ".
  Is the inspection result normal?
  
  YES: INSPECTION END
  
  NO: Replace steering wheel. Refer to , "EXPLODED VIEW ".