Inspection Procedure

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the audio unit for damage, bend and loose connection (unit side and connector side).
OK or NG

OK: GO TO 2.

NG: Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect the connector of audio unit.

Check the resistance between the audio unit harness connector terminals.

Models with BOSE audio system

MODELS WITH BOSE AUDIO SYSTEM

Audio unit harness connector			Resistance (Ω)
Connector No.	Terminal No.		Resistance (Ω)
M53	36	35	Approx. 54 - 66

Models without BOSE audio system

MODELS WITHOUT BOSE AUDIO SYSTEM

Audio unit harness connector			Resistance (Ω)
Connector No.	Terminal No.		Resistance (Ω)
M53	32	31	Approx. 54 - 66

OK or NG

OK: GO TO 3.

NG: Repair the audio unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the audio unit. Refer to "SCHEMATIC ".

OK or NG

OK:
- Present error: Replace the audio unit. Refer to "AUDIO UNIT ".
- Past error: Error was detected in the audio unit branch line.
NG: Repair the power supply and the ground circuit.