Pinpoint Test J: The Luggage Compartment Lamp Is Inoperative/Does Not Operate Correctly
Interior Lighting
Pinpoint Tests
Pinpoint Test J: The Luggage Compartment Lamp Is Inoperative/Does Not Operate Correctly
Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. Diagrams By Number
Refer to Wiring Diagram Set 117, Remote Keyless Entry and Alarm for schematic and connector information. Diagrams By Number
Normal Operation
The Smart Junction Box (SJB) supplies voltage to the luggage compartment lamp on circuit CLN09 (YE/GN). The luggage compartment lamp ground is a series circuit that is comprised of circuits GD149 (BK/GY), CLN13 (WH/BU), and the luggage compartment ajar switch. When the luggage compartment lid is ajar, the ajar switch closes and completes the ground path by connecting circuit GD149 (BK/GY) to circuit CLN13 (WH/BU). The SJB also provides a battery saver function. The battery saver function provides automatic shutoff of the interior lamps (courtesy lamps and demand lamps) after 10 minutes have elapsed in order to save battery power.
- DTC B1331 (Decklid Ajar Rear Door Circuit Failure) - an on-demand DTC that sets when the SJB detects an open from the luggage compartment ajar input circuit to the SJB.
- DTC B1178:13 (Boot/Trunk Ajar Switch: Circuit Open) - an on-demand DTC that sets when the Remote Function Actuator (RFA) module detects an open from the luggage compartment ajar input circuit to the RFA module.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Luggage compartment lamp
- Luggage compartment lid latch
- SJB
- RFA module (if equipped)
PINPOINT TEST J: THE LUGGAGE COMPARTMENT LAMP IS INOPERATIVE/DOES NOT OPERATE CORRECTLY
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 THE LUGGAGE COMPARTMENT LATCH
NOTE: Make sure all other demand lamps are operating before continuing this pinpoint test.
- Open the luggage compartment using the luggage compartment release switch on the instrument panel.
- Does the luggage compartment open?
Yes
GO to J2.
No
REFER to Locks.
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J2 CHECK THE LUGGAGE COMPARTMENT AJAR PID
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: SJB (Without Intelligent Access (IA)) or RFA Module (With IA) DataLogger.
- For vehicles without IA, monitor the SJB luggage compartment ajar switch PID (DECKLID) while opening and closing the luggage compartment.
- For vehicles with IA, monitor the RFA module luggage compartment ajar switch PID (Trunk_Ajar_Sw) while opening and closing the luggage compartment.
- Does the luggage compartment ajar switch PID value agree with the luggage compartment positions?
Yes
GO to J5.
No
GO to J3.
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J3 CHECK THE LUGGAGE COMPARTMENT AJAR SWITCH
- Disconnect: Luggage Compartment Lid Latch C429.
- Enter the following diagnostic mode on the scan tool: SJB (Without IA) or RFA Module (With IA) DataLogger.
- For vehicles without IA, monitor the SJB luggage compartment ajar switch PID (DECKLID) while opening and closing the luggage compartment.
- For vehicles with IA, monitor the RFA module luggage compartment ajar switch PID (Trunk_Ajar_Sw) while opening and closing the luggage compartment.
- Connect a fused jumper wire between the luggage compartment latch C429-1, circuit CPL58 (GY/OG), harness side and the luggage compartment latch C429-4, circuit GD149 (BK/GY), harness side.
- Does the luggage compartment ajar switch PID indicate ajar with the jumper wire removed and closed with the jumper wire connected?
Yes
REMOVE the jumper wire. INSTALL a new luggage compartment lid latch. TEST the system for normal operation.
No
REMOVE the jumper wire. GO to J4.
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J4 CHECK CIRCUIT CPL58 (GY/OG) FOR AN OPEN AND SHORT TO GROUND
- Ignition OFF.
- Disconnect: SJB C2280c (Vehicles Without IA).
- Disconnect: RFA Module C2153e (Vehicles With IA) .
- For vehicles without IA, measure the resistance between the luggage compartment lid latch C429-1, circuit CPL58 (GY/OG), harness side and the SJB C2280c-16, circuit CPL58 (GY/OG), harness side; and between the luggage compartment lid latch C429-1, circuit CPL58 (GY/OG), harness side and ground.
- For vehicles with IA, measure the resistance between the luggage compartment lid latch C429-1, circuit CPL58 (GY/OG), harness side and the RFA module C2153e-22, circuit CPL58 (GY/OG), harness side; and between the luggage compartment lid latch C429-1, circuit CPL58 (GY/OG), harness side and ground.
- Is the resistance less than 5 ohms between the luggage compartment lid latch and the SJB or the RFA module, and greater than 10,000 ohms between the luggage compartment lid latch and ground?
Yes
For vehicles without IA, GO to J8.
For vehicles with IA, GO to J9.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
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J5 CHECK CIRCUIT CLN09 (YE/GN) FOR AN OPEN
- Disconnect: Suspect Luggage Compartment Lamp.
- Ignition ON.
- Measure the voltage between the LH luggage compartment lamp C4198-1, circuit CLN09 (YE/GN), harness side and ground; or between the RH luggage compartment lamp C428-1, circuit CLN09 (YE/GN), harness side and ground.
- Is the voltage greater than 10 volts?
Yes
GO to J6.
No
REPAIR the circuit. TEST the system for normal operation.
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J6 CHECK THE LUGGAGE COMPARTMENT LATCH
- Disconnect: Luggage Compartment Lid Latch C429.
- Connect: Suspect Luggage Compartment Lamp.
- Monitor the luggage compartment lamp.
- Connect a fused jumper wire between the luggage compartment lid latch C429-2, circuit CLN13 (WH/BU), harness side, and the luggage compartment lid latch C429-4, circuit GD149 (BK/GY), harness side.
- Is the luggage compartment lamp illuminated with the jumper wire installed and off with it removed?
Yes
REMOVE the jumper wire. INSTALL a new luggage compartment lid latch. TEST the system for normal operation.
No
REMOVE the jumper wire. GO to J7.
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J7 CHECK CIRCUIT CLN13 (WH/BU) FOR AN OPEN AND SHORT TO GROUND
- Ignition OFF.
- Disconnect: Suspect Luggage Compartment Lamp.
- For the LH luggage compartment lamp, measure the resistance between the LH luggage compartment lamp C4198-2, CLN13 (WH/BU), harness side and the luggage compartment lid latch C429-2, circuit CLN13 (WH/BU), harness side; and between the LH luggage compartment lamp C4198-2, circuit CLN13 (WH/BU), harness side and ground.
- For the RH luggage compartment lamp, measure the resistance between the RH luggage compartment lamp C428-2, CLN13 (WH/BU), harness side and the luggage compartment lid latch C429-2, circuit CLN13 (WH/BU), harness side; and between the RH luggage compartment lamp C428-2, circuit CLN13 (WH/BU), harness side and ground.
- Is the resistance less than 5 ohms between the luggage compartment lid latch and the luggage compartment lamp, and greater than 10,000 ohms between the luggage compartment lid latch and ground?
Yes
INSTALL a new luggage compartment lamp in question. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
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J8 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. TEST the system for normal operation.
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J9 CHECK FOR CORRECT RFA MODULE OPERATION
- Disconnect all the RFA module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the RFA module 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 RFA module. 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. TEST the system for normal operation.
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