Flow of Diagnosis

1. Visually inspect the components of the transmission range selector linkage and brake shift interlock system.
2. Inspect to determine if one of the following mechanical or electrical concerns apply:
Mechanical
- Damaged or misadjusted selector lever cable.
- Damaged ignition key cylinder.
- Damaged transmission control switch.
Electrical
- Open fuse junction panel RUN (5A) fuse.
- Open fuse junction panel STOP LPS (15A) fuse.
- Damaged brake shift interlock actuator.
- Damaged wiring harness.
- Loose or corroded connections.
3. If the inspection reveals obvious concern(s) that can be readily identified, service as required.
4. If the concern(s) remains after the inspection, determine the condition(s) and go to Diagnosis by Symptom.
Symptom Related Diagnostic Procedures