Diesel Data: Automotive Repair

Pinpoint Test G: The Battery Saver Does Not Deactivate After Time-Out




Interior Lighting

Pinpoint Tests

Pinpoint Test G: The Battery Saver Does Not Deactivate After Time-out

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

Normal Operation

The Smart Junction Box (SJB) provides a battery saver function. The battery saver function provides automatic shutoff of the interior lamps (demand lamps, and luggage compartment lamp) after a predetermined amount of time has elapsed in order to save battery power.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals, or connectors
- SJB



PINPOINT TEST G: THE BATTERY SAVER DOES NOT DEACTIVATE AFTER TIME-OUT

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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G1 CHECK THE SJB IGNITION SWITCH PID


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: SJB DataLogger.
- Monitor the SJB ignition switch PIDs (IGN_O_ECU, IGN_A_ECU, IGN_R_ECU and IGN_S_ECU) while rotating the ignition switch through all positions.
- Does the ignition switch PID agree with the ignition switch positions?

Yes
GO to G2.

No
REFER to Steering Column. Testing and Inspection

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G2 CHECK CIRCUIT CLN09 (YE/GN) FOR A SHORT TO VOLTAGE


- Ignition OFF.
- Disconnect: SJB C2280d.
- Ignition ON.
- Turn any demand lamp on.
- Does the demand lamp turn on?

Yes
REPAIR the circuit. TEST the system for normal operation.

No
GO to G3.

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G3 CHECK FOR CORRECT SJB OPERATION


- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB 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 SJB. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.

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