Vibration Method

If a malfunction occurs or becomes worse while driving on a rough road or when the engine is vibrating, perform the steps below.
NOTE:
- There are several reasons why the vehicle or engine vibration could cause an electrical malfunction. Inspect the following:
- Connectors not fully seated
- Wiring harnesses not having full play
- Wiring harnesses laying across brackets or moving parts
- Wiring harnesses routed too close to hot parts
- An improperly routed, improperly clamped, or loose wiring harness can cause a wiring harness to become pinched between parts.
- The connector joints, points of vibration, and places where wiring harnesses pass such as through the firewall and body panels are the major areas to be checked.