Preliminary Inspection

Before performing any tests, check the following items to eliminate common problems:

• Check all fuses in main fuse block and relay block located in engine compartment.
• Check all fuses in junction/fuse block.
• Check for damaged, loose or corroded connections.
• Check for damaged wiring harness.
• Ensure horn relay is securely mounted into junction/fuse block. Ensure horn ground is clean and tight. Ground is located near washer fluid reservoir. Before replacing components, check for poor connections at related component and harness connectors.
• Check for proper installation of aftermarket electronic equipment which may affect circuits. If a fuse is blown, repair circuits as necessary. Correct any obvious problems before continuing testing.