Pinpoint Test F: An Individual Demand Lamp Is Inoperative

Interior Lighting

Pinpoint Tests

Pinpoint Test F: An Individual Demand Lamp Is Inoperative

Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. Diagrams By Number

Normal Operation

The Lighting Control Module (LCM) provides power to the demand lamps.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Interior lamp

PINPOINT TEST F: AN INDIVIDUAL DEMAND LAMP IS INOPERATIVE

NOTE: The battery saver must be activated during this test.

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery, Mounting and Cables Battery Disconnect.

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F1 VERIFY THE INTERIOR LAMP OPERATION


- Open the LH front door.
- Verify all courtesy lamps illuminate.
- Do the courtesy lamps illuminate?

Yes
GO to F2.

No
GO to Pinpoint Test A. Pinpoint Test A: The Courtesy Lamps Are Inoperative

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F2 CHECK THE DEMAND LAMP INPUT CIRCUIT FOR AN OPEN


- Ignition OFF.
- Disconnect: Inoperative Demand Lamp.
- Ignition ON.
- Measure the voltage between the inoperative demand lamp, harness side and ground as follows:









- Is the voltage greater than 10 volts?

Yes
GO to F3.

No
REPAIR circuit 705 (LG/OG) for an open. TEST the system for normal operation.

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F3 CHECK FOR VOLTAGE TO THE DEMAND LAMP USING THE CONNECTOR GROUND


- Measure the voltage between the inoperative demand lamp connector pins, harness side as follows:









- Is the voltage greater than 10 volts?

Yes
INSTALL a new lamp assembly. TEST the system for normal operation.

No
REPAIR circuit 57 (BK) for an open. TEST the system for normal operation.

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