Pinpoint Test H: The Puddle Lamps Stay On Continuously

Interior Lighting

Pinpoint Tests

Pinpoint Test H: The Puddle Lamps Stay On Continuously

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

Normal Operation

The Smart Junction Box (SJB) provides voltage to the puddle lamps through circuit CLN25 (VT). The puddle lamps have separate ground circuits. The LH exterior mirror is grounded through circuit GD133 (BK), and the RH exterior mirror is grounded through circuit GD148 (BK/YE).

- DTC B2A39 (Puddle Lamp Output Circuit Open) - an on-demand DTC that sets when the SJB detects a short to voltage on the puddle lamp output circuit.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- SJB



PINPOINT TEST H: THE PUDDLE LAMPS STAY ON CONTINUOUSLY

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H1 CHECK CIRCUIT CLN25 (VT) FOR A SHORT TO VOLTAGE


- Ignition OFF.
- Disconnect: SJB C2280c.
- Ignition ON.
- Do the puddle lamps continue to illuminate?

Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

No
GO to H2.

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H2 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. CLEAR the DTCs. REPEAT the self-test.

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