BCM Power Supply and Ground Circuit Check
WARNING: This page is about a different car, the 2007 Nissan Versa. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FUSES AND FUSIBLE LINK
- Check 40A fusible link (letter g , located in the fuse and fusible link box).
- Check 10A fuses [No. 6, 8 and 20, located in the fuse block (J/B)].
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to " POWER SUPPLY ROUTING CIRCUIT " .
- CHECK BCM POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM.
- Check voltage between BCM connectors and ground.TERMINALS VOLTAGE CHART
Connector Terminals Power source Condition Voltage (V) (Approx.) (+) (-) M18 11 Ground ACC power supply Ignition switch ACC or ON Battery voltage 38 Ground Ignition power supply Ignition switch ON or START Battery voltage M20 57 Ground Battery power supply Ignition switch OFF Battery voltage 70 Ground Battery power supply Ignition switch OFF Battery voltage
OK or NG
OK >> GO TO 3.
NG >> Repair or replace the harness.
- CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and ground.
67 - Ground: Continuity should exist.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.