Pinpoint Test F: An Individual Demand Lamp Is Inoperative
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- F1 CHECK CIRCUIT CLN09 (YE/GN) FOR VOLTAGE
- Key in OFF position.
- Disconnect: Suspect Demand Lamp.
- Key in ON position.
- Measure the voltage between the suspect demand lamp, harness side and ground as follows:CONNECTOR-PIN SPECIFICATION
Location Connector-Pin Circuit RH vanity mirror lamp C906-1 CLN09 (YE/GN) LH vanity mirror lamp C907-1 CLN09 (YE/GN) Front interior lamp C904-3 CLN09 (YE/GN) Rear interior lamp C901-3 CLN09 (YE/GN) Dome lamp (Fusion without moonroof) C918-3 CLN09 (YE/GN) Glove compartment lamp C254-1 CLN09 (YE/GN) - Is the voltage greater than 10 volts?
Yes : GO to F2.
No : REPAIR the circuit in question. TEST the system for normal operation.
- F2 CHECK THE GROUND CIRCUIT FOR AN OPEN
- Measure the resistance between the suspect demand lamp connector, harness side and ground as follows:CONNECTOR-PIN SPECIFICATION
Location Connector-Pin Circuit RH vanity mirror lamp C906-2 GD139 (BK/YE) LH vanity mirror lamp C907-2 GD139 (BK/YE) Front interior lamp C904-2 GD139 (BK/YE) Rear interior lamp C901-2 GD139 (BK/YE) Dome lamp (Fusion without moonroof) C918-2 GD139 (BK/YE) Glove compartment lamp Case ground - - Is the resistance less than 5 ohms?
Yes : INSTALL a new demand lamp for the lamp in question. TEST the system for normal operation.
No : REPAIR the circuit in question. TEST the system for normal operation.
- Measure the resistance between the suspect demand lamp connector, harness side and ground as follows: