Initial Inspection - External Controls
Special Tool(s)
Inspection and Verification
1. Verify the customer concern by operating the transmission external control.
2. Visually inspect for obvious signs of mechanical and electrical damage; refer to the following charts:
Visual Inspection Chart
P0815-P1780:
Diagnostic Trouble Code Chart
3. If the concern is not visually evident, determine the symptom. Go to Symptom Chart Diagnosis By Symptom - External Controls