Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.

CHECK STEERING SWITCH SIGNAL B CIRCUIT

Turn ignition switch OFF.
Disconnect TEL adapter unit connector and spiral cable connector.

Check continuity between TEL adapter unit harness connector and spiral cable harness connector.

CONTINUITY SPECIFICATION

TEL adapter unit		Spiral cable		Continuity
Connector	Terminal	Connector	Terminal	Continuity
B237	13	M36	31	Existed

Check continuity between TEL adapter unit harness connector and ground.

CONTINUITY SPECIFICATION

TEL adapter unit		Ground	Continuity
Connector	Terminal
B237	13		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 "REMOVAL AND INSTALLATION ".

CHECK TEL ADAPTER UNIT VOLTAGE

Connect TEL adapter unit connector and spiral cable connector.
Turn ignition switch ON.
Check voltage between TEL adapter unit harness connector.

VOLTAGE SPECIFICATION

(+)		(-)		Voltage (Approx.)
TEL adapter unit		TEL adapter unit
Connector	Terminal	Connector	Terminal
B237	13	B237	14	5.0 V

Is the inspection result normal?

YES: Go to 4.

NO: Replace TEL adapter unit. Refer to "REMOVAL AND INSTALLATION ".

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 switch. Refer to "REMOVAL AND INSTALLATION ".