4. Check Stop Lamp Switch Input Signal Circuit For Open And Short
WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect stop lamp switch harness connector.
- Check harness continuity between ECM terminal 101 and stop lamp switch terminal 4.
Refer to Wiring Diagram
- Continuity should exist .
- Also check harness for short to ground and short to power. See Figure.
OK or NG
OK: GO TO 6 .
NG: GO TO 5.