Nissan Maxima Service and Repair Manual: B2614 ACC relay circuit

Description

BCM controls the various electrical components and simultaneously supplies power according to the power supply position.

BCM checks the power supply position internally.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1. PERFORM DTC CONFIRMATION PROCEDURE

1. Turn the power supply position to ACC under the following conditions, and wait for at least 1 second.

• CVT selector lever is in the P or N position.
• Release the brake pedal.

2. Check "Self diagnostic result" with CONSULT.

Diagnosis Procedure

1. CHECK ACCESSORY RELAY-1 POWER SUPPLY

1. Turn ignition switch OFF.
2. Disconnect accessory relay-1.
3. Check voltage between accessory relay-1 harness connector and ground under the following conditions

2. CHECK ACCESSORY RELAY-1 POWER SUPPLY CIRCUIT-1

1. Turn ignition switch OFF.
2. Disconnect BCM harness connector.
3. Check continuity between accessory relay-1 harness connector and BCM harness connector.

4. Check continuity between accessory relay-1 harness connector and ground.

3. CHECK ACCESSORY RELAY-1 GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Check continuity between accessory relay-1 harness connector and ground.

4. CHECK ACCESSORY RELAY-1 POWER SUPPLY CIRCUIT-2

Check voltage between accessory relay-1 harness connector and ground.

5. CHECK ACCESSORY RELAY-1

6. CHECK INTERMITTENT INCIDENT

Component Inspection (Accessory Relay-1)

1. CHECK ACCESSORY RELAY-1

1. Turn ignition switch OFF.
2. Remove accessory relay-1.
3. Check the continuity between accessory relay-1 terminals under the following conditions.