Pinpoint Test A: The BSIA System Does Not Release/Lock Correctly

External Controls

Pinpoint Tests

Refer to Wiring Diagram Set 29, Transmission Controls for schematic and connector information. Diagrams By Number

Refer to Wiring Diagram Set 37, Shift Interlock for schematic and connector information. Diagrams By Number



PINPOINT TEST A: THE BSIA SYSTEM DOES NOT RELEASE/LOCK CORRECTLY

-------------------------------------------------
A1 CHECK THE BRAKE LIGHTS


- Apply the brake pedal and view the brake lights.
- Do all the brake lights illuminate?

Yes
GO to A2.

No
REFER to Exterior Lighting Testing and Inspection.

-------------------------------------------------
A2 CHECK CIRCUIT 810 (RD/LG) FOR A SHORT TO GROUND


- Disconnect: Lighting Control Module (LCM) C2145A.
- Disconnect: Brake Shift Interlock Actuator (BSIA) C2008.
- Measure the resistance between BSIA C2008, circuit 810 (RD/LG), harness side and ground.




- Is the resistance greater than 10,000 ohms?

Yes
GO to A3.

No
REPAIR circuit 810 (RD/LG) for a short to ground. RECONNECT all components. CLEAR DTCs. TEST the system for normal operation.

-------------------------------------------------
A3 CHECK CIRCUIT 810 (RD/LG) FOR AN OPEN


- Measure the resistance between BSIA C2008-2, circuit 810 (RD/LG), harness side and LCM C2145A-6, circuit 810 (RD/LG), harness side.




- Is the resistance less than 5 ohms?

Yes
GO to A4.

No
REPAIR circuit 810 (RD/LG) for an open. RECONNECT all components. CLEAR DTCs. TEST the system for normal operation.

-------------------------------------------------
A4 CHECK CIRCUIT 57 (BK) FOR AN OPEN


- Measure the resistance between BSIA C2008-1, circuit 57 (BK), harness side and ground.




- Is the resistance less than 5 ohms?

Yes
GO to A5.

No
REPAIR circuit 57 (BK) for an open. RECONNECT all components. CLEAR DTCs. TEST the system for normal operation.

-------------------------------------------------
A5 CHECK THE LCM


- Connect: LCM C2145A.
- Ignition ON.
- Measure the voltage at BSIA C2008-2, circuit 810 (RD/LG), harness side while applying the brake pedal.




- Is the voltage greater than 10 volts while applying the brake pedal?

Yes
INSTALL a new BSIA. REFER to Brake Shift Interlock Actuator Service and Repair. RECONNECT all components. CLEAR DTCs. TEST the system for normal operation.

No
INSTALL a new LCM. REFER to Multifunction Electronic Modules Lighting Control Module (LCM). RECONNECT all components. CLEAR DTCs. TEST the system for normal operation.

-------------------------------------------------