Pinpoint Test A: The BSIA System Does Not Release/Lock Correctly
External Controls
Pinpoint Tests
PINPOINT TEST A: THE BSIA SYSTEM DOES NOT RELEASE/LOCK CORRECTLY
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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 Brake Lamp. Testing and Inspection
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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. TEST the system for normal operation.
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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. TEST the system for normal operation.
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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. TEST the system for normal operation.
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A5 CHECK THE LCM
- Connect: LCM C2145B.
- 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. TEST the system for normal operation.
No
INSTALL a new LCM. RECONNECT all components. TEST the system for normal operation.
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