Diagnosis Procedure
WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
- Turn the ignition switch OFF.
- Disconnect the BCM and combination switch.
- Check continuity between BCM harness connector and combination switch harness connector.TERMINAL CONTINUITY REFERENCE CHART
System BCM Combination switch Continuity Connector Terminal Connector Terminal OUTPUT 1 M18 (A) 51 M28 (B) 12 Yes OUTPUT 2 52 14 OUTPUT 3 53 5 OUTPUT 4 54 2 OUTPUT 5 50 8 Courtesy of NISSAN MOTOR CO., U.S.A.
Does continuity exist?
YES: GO TO 2
NO: Repair or replace harness.
- CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check for continuity between BCM harness connector and ground.
TERMINAL CONTINUITY REFERENCE CHARTSystem BCM Ground Continuity Connector Terminal OUTPUT 1 M18 51 No OUTPUT 2 52 OUTPUT 3 53 OUTPUT 4 54 OUTPUT 5 50 Courtesy of NISSAN MOTOR CO., U.S.A.
Does continuity exist?
YES: Repair or replace harness.
NO: GO TO 3
- CHECK COMBINATION SWITCH OUTPUT VOLTAGE
- Connect the BCM and combination switch.
- Turn ON any switch in the system that is malfunctioning.
- Check voltage between combination switch harness connector and ground.
TERMINAL VOLTAGE REFERENCE CHART
| System | Terminals | Value (Approx.) | ||
| (+) | (-) | |||
| Combination switch | Ground | |||
| Connector | Terminal | |||
| OUTPUT 1 | M28 | 12 | ||
| OUTPUT 2 | 14 | |||
| OUTPUT 3 | 5 | |||
| OUTPUT 4 | 2 | |||
| OUTPUT 5 | 8 | |||
Is the measurement normal when any of the switches is turned ON?
YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
NO: Replace the combination switch. Refer to "REMOVAL AND INSTALLATION ".