Inspection and Verification
- Verify the customer concern by operating the transmission external control.
- Visually inspect for obvious signs of mechanical and electrical damage; refer to the following chart:VISUAL INSPECTION CHART
Mechanical Electrical - Shift control linkage binding
- Shift lock actuator
- Shift control cable
- Interlock cable
- Circuitry
- Central junction box (CJB) fuses:
- 17 (15A)
- 28 (15A)
- 35 (15A)
- Brake pedal position (BPP) switch
- Wiring harness
- Loose or corroded connections
- Bulb
- If the concern is not visually evident, determine the symptom. GO to SYMPTOM CHART .DIAGNOSTIC TROUBLE CODE (DTC) CHART
DTC Component Description Condition Symptom Action B2572 Brake Shift Interlock Brake Shift Interlock Output Circuit Failure The associated circuitry connected to the smart junction box (SJB) or fuse, or the SJB itself may have an issue causing a brake shift interlock concern. Brake shift interlock is inoperative or does not operate correctly. GO to PINPOINT TEST A .