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