Pinpoint Test E: All the Courtesy Lamps Stay On Continuously
Interior Lighting
Pinpoint Tests
Pinpoint Test E: All the Courtesy Lamps Stay On Continuously
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) (vehicles without Intelligent Access (IA)) or the Remote Function Actuator (RFA) module (vehicles with IA) send a voltage signal to each door ajar switch, which is routed to ground when the door is closed (the door ajar switch is closed when the door is closed). When the door is opened, the signal to ground is interrupted indicating an open door to the SJB or the RFA module.
When the SJB or the RFA module detect voltage is provided to the courtesy lamps.
Smart Junction Box (SJB) DTCs
Remote Function Actuator (RFA) Module DTCs
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Door ajar switch
- SJB
- RFA module
PINPOINT TEST E: ALL THE COURTESY LAMPS STAY 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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E1 CHECK THE SJB DTCs FROM THE CONTINUOUS AND ON-DEMAND SELF-TESTS
- Review the recorded results from the SJB continuous and on-demand self-tests.
- Is DTC B2A35 or DTC B2A39 present?
Yes
For DTC B2A35, GO to Pinpoint Test F. Pinpoint Test F: The Interior Courtesy Lamps Are On Continuously
For DTC B2A39, GO to Pinpoint Test G. Pinpoint Test G: The Puddle Lamps Stay On Continuously
No
GO to E2.
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E2 CHECK FOR A VOLTAGE SIGNAL TO THE DOOR AJAR SWITCH
- Ignition OFF.
- Disconnect: Suspect Door Ajar Switch .
- Measure the voltage between the suspect ajar switch, harness side and ground as follows:
- Is the voltage greater than 10 volts?
Yes
GO to E3.
No
GO to E4.
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E3 CHECK FOR A VOLTAGE SIGNAL TO THE DOOR AJAR SWITCH USING THE CONNECTOR GROUND
- Disconnect: Suspect Door Ajar Switch .
- Measure the voltage between the suspect ajar switch connector, harness side as follows:
- Is the voltage greater than 10 volts?
Yes
INSTALL a new door ajar switch for the switch in question. REFER to Doors, Hood and Trunk &/or Locks. CLEAR the DTCs. REPEAT the self-test.
No
REPAIR the ground circuit in question for an open. CLEAR the DTCs. REPEAT the self-test.
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E4 CHECK THE DOOR AJAR SWITCH INPUT CIRCUIT FOR AN OPEN
- Disconnect: SJB C2280c (Vehicles Without IA) .
- Disconnect: RFA Module C2153e (Vehicles With IA) .
- For vehicles without IA, measure the resistance between the suspect door ajar switch, harness side and the SJB, harness side as follows:
- For vehicles with IA, measure the resistance between the suspect door ajar switch, harness side and the RFA module, harness side as follows:
- Is the resistance less than 5 ohms?
Yes
For vehicles without IA, GO to E5.
For vehicles with IA, GO to E6.
No
REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
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E5 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. REFER to Body Control Systems. 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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E6 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. REFER to Body Control Systems. 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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