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For the Horn System circuit diagram (Refer to 8 - ELECTRICAL/HORN SYSTEM - SCHEMATICS AND DIAGRAMS) For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes HORN RELAY POWER DISTRIBUTION CENTER FRONT CONTROL MODULE Diagnostic Test 1. TEST FOR INTERMITTENT CONDITION With the scan tool, record and erase DTC’s Operate the Horn Switch several times. Cycle the ignition from on to off 3 times and leave on. With the scan tool, read DTC’s. Does the scan tool display B2337 – HORN CONTROL CIRCUIT Yes >> Go To 2 No >> The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic Perform BODY VERIFICATION TEST - VER 1. 2. HORN RELAY Turn the ignition off. Install a known good relay in place of the Horn Relay. With the scan tool erase DTC’s Operate the Horn Switch several times. Cycle the ignition from on to off 3 times and leave on. With the scan tool, read DTC’s. Does the scan tool display B2337 – HORN CONTROL CIRCUIT No >> Replace the original Horn Relay. Perform BODY VERIFICATION TEST - VER 1. Yes >> Go To 3 HB HORN SYSTEM - ELECTRICAL DIAGNOSTICS 8H - 7 B2337–HORN CONTROL CIRCUIT HIGH – FCM — (CONTINUED) |