Pinpoint Test E: All the Courtesy Lamps Stay On Continuously
Interior Lighting
Pinpoint Test E: All the Courtesy Lamps Stay On Continuously
Normal Operation
The Smart Junction Box (SJB) (vehicles without Intelligent Access (IA)) or the Remote Function Actuator (RFA) module (vehicles with IA (Intelligent Access)) 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 (Smart Junction Box) or the RFA (Remote Function Actuator) module.
When the SJB (Smart Junction Box) or the RFA (Remote Function Actuator) 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 (Smart Junction Box)
- RFA (Remote Function Actuator) 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.
E1 CHECK THE SJB (Smart Junction Box) DTCs FROM THE CONTINUOUS AND ON-DEMAND SELF-TESTS
- Review the recorded results from the SJB (Smart Junction Box) 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.
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:
SJB (Smart Junction Box) DTC Connector-Pin Circuit B1320 LH front C525-5CPL26 (GN/VT) B1328 RH front C609-5CPL31 (WH) B1336 RH rear C804-5CPL39 (YE) B1572 LH rear C704-5CPL36 (GN)
Is the voltage greater than 10 volts?
Yes
GO to E3.
No
GO to E4.
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:
SJB (Smart Junction Box) DTC/ Door Ajar Switch Connector-Pin/ Circuit Connector-Pin/ Circuit B1320 LH front C525-5 CPL26 (GN/VT) C525-6 GD133 (BK) B1328 RH front C609-5 CPL31 (WH) C609-6 GD145 (BK/BU) B1336 RH rear C804-5 CPL39 (YE) C804-6 GD145 (BK/BU) B1572 LH rear C704-5 CPL36 (GN) C704-6 GD133 (BK)
Is the voltage greater than 10 volts?
Yes
INSTALL a new door ajar switch for the switch in question. CLEAR the DTCs. REPEAT the self-test.
No
REPAIR the ground circuit in question for an open. CLEAR the DTCs. REPEAT the self-test.
E4 CHECK THE DOOR AJAR SWITCH INPUT CIRCUIT FOR AN OPEN
- Disconnect: SJB (Smart Junction Box) C2280C (Vehicles Without IA (Intelligent Access)).
- Disconnect: RFA (Remote Function Actuator) Module C2153E (Vehicles With IA (Intelligent Access)).
- For vehicles without IA (Intelligent Access), measure the resistance between the suspect door ajar switch, harness side and the SJB (Smart Junction Box), harness side as follows:
SJB (Smart Junction Box) DTC/ Door Ajar Switch Suspect Door Ajar Switch Connector- Pin SJB (Smart Junction Box) Connector- Pin Circuit B1320 LH front C525-5 C2280C-14 CPL26 (GN/VT) B1328 RH front C609-5 C2280C-2 CPL31 (WH) B1336 RH rear C804-5 C2280C-15 CPL39 (YE) B1572 LH rear C704-5 C2280C-3 CPL36 (GN)
- For vehicles with IA (Intelligent Access), measure the resistance between the suspect door ajar switch, harness side and the RFA (Remote Function Actuator) module, harness side as follows:
SJB (Smart Junction Box) DTC/ Door Ajar Switch Suspect Door Ajar Switch Connector- Pin RFA (Remote Function Actuator) Module Connector- Pin Circuit B1320 LH front C525-5 C2153E-19 CPL26 (GN/VT) B1328 RH front C609-5 C2153E-18 CPL31 (WH) B1336 RH rear C804-5 C2153E-20 CPL39 (YE) B1572 LH rear C704-5 C2153E-21 CPL36 (GN)
Is the resistance less than 5 ohms?
Yes
For vehicles without IA (Intelligent Access), GO to E5.
For vehicles with IA (Intelligent Access), GO to E6.
No
REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
E5 CHECK FOR CORRECT SJB (Smart Junction Box) OPERATION
- Disconnect all the SJB (Smart Junction Box) connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SJB (Smart Junction Box) 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 (Smart Junction Box). 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.
E6 CHECK FOR CORRECT RFA (Remote Function Actuator) MODULE OPERATION
- Disconnect all the RFA (Remote Function Actuator) module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the RFA (Remote Function Actuator) 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 (Remote Function Actuator) 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.