Pinpoint Test J: An Individual Demand Lamp Is Inoperative

Interior Lighting

Pinpoint Tests

Pinpoint Test J: An Individual Demand Lamp Is Inoperative

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

Normal Operation

When the battery saver relay is energized, voltage is supplied to the demand lamps. The demand lamps share the ground with the courtesy lamps.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Interior lamp



PINPOINT TEST J: AN INDIVIDUAL DEMAND LAMP IS INOPERATIVE

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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J1 CHECK FOR VOLTAGE TO THE DEMAND LAMP


- 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 J2.

No
REPAIR circuit CLN09 (YE/GN) for an open. TEST the system for normal operation.

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J2 CHECK FOR VOLTAGE TO THE DEMAND LAMP USING THE CONNECTOR GROUND


- Measure the voltage between the inoperative demand lamp, harness side and ground as follows:










- Is the voltage greater than 10 volts?

Yes
INSTALL a new interior lamp for the lamp in question. REFER to Interior Lamp Service and Repair. TEST the system for normal operation.

No
REPAIR circuit GD133 (BK) for an open. TEST the system for normal operation.

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