Inspection & Verification
WARNING:
If equipped with fire suppression system, refer to FIRE SUPPRESSION SYSTEM
article for Important Safety Warnings. Failure to follow this instruction may result in serious personal injury.
- Verify the customer concern by operating the transmission external control.
- Visually inspect for obvious signs of mechanical and electrical damage, incorrect component installation and component misalignment. Verify that all circuit-related systems are functioning correctly. Refer to the following chart.DIAGNOSTIC TROUBLE CODE INDEX
Five Digit DTC Component Description Condition Symptom Action B1485 Lighting control module (LCM), wiring LCM concerns, shorted circuit LCM system has a malfunction which may cause a brake shift interlock concern. Brake shift interlock not locking. Go to Pinpoint Test A for column shift or Go to Pinpoint Test E for floor shift. VISUAL INSPECTION CHARTMechanical Electrical - Damaged brake shift interlock actuator (BSIA)
- Damaged brake pedal position (BPP) switch
- Damaged transmission control (TC) switch
- Damaged deactivator switch
- Damaged steering column
- Damaged instrument cluster
- Damaged selector lever cable and bracket
- Failed central junction box (CJB) fuse(s):
- 17 (10A)
- 26 (10A)
- 28 (7.5A)
- Failed battery junction box (BJB) fuse:
- 14 (20A)
- BSIA
- LCM
- PCM
- ABS module
- BJB
- CJB
- Damaged wiring harness
- Loose or corroded connections
- If the fault is not visually evident, go to Symptom Chart - Column Shift or Go to Symptom Chart - Floor Shift .