Pinpoint Test V: The Reversing Lamps Are On Continuously

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

V1 CHECK THE REVERSING LAMPS
- Key in ON position.
- Observe the reversing lamps.
- Are both reversing lamps illuminated?
Yes

GO to V2.

No

GO to V4.
V2 CHECK THE PCM
- Key in OFF position.
- Disconnect: PCM C175.
- Key in ON position.
- Do the reversing lamps continue to illuminate?
Yes

GO to V4.

No

GO to V3.
V3 CHECK FOR PCM OPERATION
- Key in OFF position.
- Disconnect all the PCM connectors.
- Check for:
  - Corrosion
  - pushed-out pins
- Connect all the PCM connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes

INSTALL a new PCM. Refer to POWERTRAIN CONTROL MODULE (PCM) . CLEAR any DTCs. TEST the system for normal operation.

No

The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. REPEAT the self-test.
V4 CHECK THE SJB
- Key in OFF position.
- Disconnect: SJB C2280d.
- Key in ON position.
- Does the reversing lamp continue to illuminate?
Yes

For the LH reversing lamp, REPAIR circuit 1362 (DG/OG). CLEAR any DTCs. TEST the system for normal operation.

For the RH reversing lamp, REPAIR circuit 1367 (WH/YE). CLEAR any DTCs. TEST the system for normal operation.

No

GO to V5.
V5 CHECK FOR SJB OPERATION
- Key in OFF position.
- Disconnect all the SJB connectors.
- Check for:
  - Corrosion
  - pushed-out pins
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes

INSTALL a new SJB. Refer to SMART JUNCTION BOX (SJB) TEST the system for normal operation.

No

The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR any DTCs. REPEAT the self-test.