Pinpoint Test G: The Luggage Compartment Lamp Stays On Continuously
Interior Lighting
Pinpoint Tests
Pinpoint Test G: The Luggage Compartment Lamp Stays On Continuously
Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. Diagrams By Number
Normal Operation
When the luggage compartment lid is open, circuit 1351 (TN) to the Smart Junction Box (SJB) opens. When the SJB identifies that the circuit is open, the SJB provides voltage to the luggage compartment lamp through circuit 707 (WH/YE). The luggage compartment lid ajar switch is grounded through circuit 1205 (BK).
- DTC B1084 (Trunk Lamp Circuit Failure) - a continuous and on-demand DTC that sets when the SJB detects a short to voltage on the luggage compartment lamp supply circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Luggage compartment lid latch
- SJB
PINPOINT TEST G: THE LUGGAGE COMPARTMENT LAMP STAYS ON CONTINUOUSLY
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 RECORDED DTCs FROM THE SJB SELF-TEST
- Check the recorded results from the SJB self-test.
- Is DTC B1084 present?
Yes
GO to G2.
No
GO to G3.
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G2 CHECK CIRCUIT 707 (WH/YE) FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: SJB C2280e.
- Ignition ON.
- Does the luggage compartment lamp continue to illuminate?
Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
No
GO to G6.
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G3 CHECK THE LUGGAGE COMPARTMENT LID LATCH
- Ignition OFF.
- Disconnect: Luggage Compartment Lid Latch C430.
- Connect a fused jumper between the luggage compartment lid latch C430-3, circuit 1205 (BK), harness side and the luggage compartment lid latch C430-1, circuit 1351 (TN), harness side.
- Does the luggage compartment lamp continue to illuminate?
Yes
REMOVE the jumper wire. GO to G4.
No
REMOVE the jumper wire. INSTALL a new luggage compartment lid latch. TEST the system for normal operation.
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G4 CHECK THE LUGGAGE COMPARTMENT AJAR INPUT CIRCUIT FOR VOLTAGE
- Measure the voltage between the luggage compartment lid latch C430-1, circuit 1351 (TN), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
GO to G5.
No
REPAIR circuit 1205 (BK) for an open. TEST the system for normal operation.
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G5 CHECK CIRCUIT 1351 (TN) FOR AN OPEN
- Disconnect: SJB C2280c.
- Measure the resistance between the SJB C2280c-17, circuit 1351 (TN), harness side and the luggage compartment lid latch C430-1, circuit 1351 (TN), harness side.
- Is the resistance less than 5 ohms?
Yes
GO to G6.
No
REPAIR the circuit. TEST the system for normal operation.
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G6 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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