Pinpoint Test A: The Brake Shift Interlock System Does Not Release/Lock Correctly
External Controls
Pinpoint Tests
PINPOINT TEST A: THE BRAKE SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK CORRECTLY
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A1 TEST THE BRAKE LIGHTS
- Apply the brake pedal and view the brake lights.
- Do the brake lights illuminate?
Yes
GO to A2.
No
REPAIR the brake lights, REFER to Lighting and Horns.
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A2 TEST SJB FUSE 5 (10A)
- Ignition OFF.
- Check fuse: Smart Junction Box (SJB) 5 (10A).
- Is the resistance less than 5 ohms?
Yes
GO to A4.
No
GO to A3.
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A3 CHECK CIRCUIT CET53 (BU/OG) FOR A SHORT TO GROUND
- Disconnect: Brake Shift Interlock Actuator (BSIA) C2008.
- Disconnect: SJB C2280-C.
- Inspect for damaged or pushed-out terminals, corrosion or loose wires. Repair as necessary.
- Measure the resistance between BSIA C2008-3, circuit CET53 (BU/OG), harness side and ground.
- Is the resistance greater than 10,000 ohms?
Yes
GO to A4.
No
REPAIR circuit CET53 (BU/OG) for a short to ground. RECONNECT all components. CLEAR the DTC. TEST the system for normal operation.
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A4 CHECK CIRCUIT CET53 (BU/OG) FOR AN OPEN
- Measure the resistance between BSIA C2008-3, circuit CET53 (BU/OG), harness side and SJB C2280C-23, circuit CET53 (BU/OG), harness side.
- Is the resistance less than 5 ohms?
Yes
GO to A5.
No
REPAIR circuit CET53 (BU/OG) for an open. RECONNECT all components. CLEAR the DTC. TEST the system for normal operation.
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A5 TEST CIRCUIT GD115 (BK/GY) FOR AN OPEN
- Measure the resistance between BSIA C2008-1, circuit GD115 (BK/GY), harness side and ground.
- Is the resistance less than 5 ohms?
Yes
GO to A6.
No
REPAIR circuit GD115 (BK/GY) for an open. RECONNECT all components. CLEAR the DTC. TEST the system for normal operation.
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A6 TEST CIRCUIT CET53 (BU/OG) FOR VOLTAGE
- Connect: SJB C2008C.
- Ignition ON.
- Measure the voltage at the BSIA C2008-3, circuit CET53 (BU/OG), harness side, while applying the brake pedal.
- Is the voltage greater than 10 volts with the brake pedal applied?
Yes
INSTALL a new BSIA. REFER to Brake Shift Interlock Actuator Service and Repair. RECONNECT all components. CLEAR the DTC. TEST the system for normal operation.
No
INSTALL a new SJB. REFER to Information Bus. RECONNECT all components. CLEAR the DTC. TEST the system for normal operation.
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