Vibration method: Notes

If a malfunction occurs or becomes worse while driving on a rough road or when the engine is vibrating, perform the following steps.
NOTE:
- There are several reasons why vehicle or engine vibration could cause an electrical malfunction. Inspect the following:
  - Connectors not fully seated.
  - Wire 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 and other panels are the major areas to be inspected.