Pinpoint Test J: An Individual Demand Lamp Is Inoperative

Interior Lighting

Pinpoint Test J: An Individual Demand Lamp Is Inoperative

Normal Operation

The Smart Junction Box (SJB) supplies voltage to the demand lamps when the battery saver relay is energized. The demand lamps are grounded at each lamp by the switch.

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.

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:

Inoperative Lamp Connector-Pin Circuit RH vanity mirror C906-1 CLN09 (YE/GN) LH vanity mirror C907-1 CLN09 (YE/GN) Front C918-3 CLN09 (YE/GN) LH rear C963-3 CLN09 (YE/GN) RH rear C964-3 CLN09 (YE/GN) Glove compartment C254-1 CLN09 (YE/GN)






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.

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

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

Inoperative Lamp Connector-Pin/ Circuit Connector-Pin/ Circuit RH vanity mirror C906-1 CLN09 (YE/GN) C906-2 GD133 (BK) LH vanity mirror C907-1 CLN09 (YE/GN) C907-2 GD133 (BK) Front C918-3 CLN09 (YE/GN) C918-1 GD133 (BK) LH rear C963-3 CLN09 (YE/GN) C963-2 GD133 (BK) RH rear C964-3 CLN09 (YE/GN) C964-2 GD133 (BK) Glove compartment C254-1 CLN09 (YE/GN) C254-2 GD116 (BK/VT)






Is the voltage greater than 10 volts?

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

No
REPAIR the ground circuit in question for an open. TEST the system for normal operation.