Pinpoint Test R: The Parking, Rear Or License Lamps Are On Continuously

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

R1 CHECK THE HEADLAMP SWITCH
- Disconnect: Headlamp Switch C205a.
- Do the parking lamps continue to illuminate?
Yes

GO to R2.

No

INSTALL a new headlamp switch. Refer to HEADLAMP SWITCH . TEST the system for normal operation.
R2 CHECK THE VEHICLE SECURITY MODULE
- Disconnect: Vehicle Security Module C3203e.
- Do the parking lamps continue to illuminate?
Yes

GO to R3.

No

GO to R4
R3 CHECK THE A/C CLIMATE CONTROL ASSEMBLY FOR A SHORT TO POWER
- Disconnect: Climate Control Assembly C294b or Electronic Automatic Temperature Control (EATC) Module C228a.
- Do the parking lamps continue to illuminate?
Yes

REPAIR circuit 14 (BN). TEST the system for normal operation.

No

INSTALL a new climate control assembly. Refer to CLIMATE CONTROL SYSTEM . TEST the system for normal operation.
R4 CHECK FOR VEHICLE SECURITY MODULE OPERATION
- Disconnect all vehicle security module connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all central vehicle security module 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 vehicle security module. Refer to VEHICLE SECURITY MODULE . 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 the DTCs. TEST the system for normal operation.