Inspection 3: Warning Lamp Flashes When Ignition Switch Is Turned On.

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If warning lamp flashes as shown, the system is normal.

Flash Mode A

This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to TRANSMITTER WAKE UP OPERATION .

Fig 1: Warning Lamp Blinking Pattern
Courtesy of NISSAN MOTOR CO., U.S.A.

DIAGNOSTIC PROCEDURE

CHECK CONNECTOR
1. Disconnect BCM harness connectors M18, M19 and M20.
2. Check terminals for damage or loose connections.
Inspection results OK?
- OK: GO TO 2.
- NG: Repair or replace damaged parts.
CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM harness connector M18 terminal 15 (L/W) and check connector M123 terminal 1 (L/W).

Fig 2: Checking Continuity Between BCM Harness Connector M18 Terminal 15 & Check Connector M123 Terminal 1
Courtesy of NISSAN MOTOR CO., U.S.A.

Continuity should exist.

OK or NG
- OK: Replace BCM. Refer to REMOVAL AND INSTALLATION OF BCM .
- NG: Repair or replace harness connector.