Troubleshooting Hints

1. Check for missing or damaged connector seal at the Ambient Air Temperature Sensor.
2. "SC" or "OC" appears in temperature display during operation, see the appropriate diagnostic chart. Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in a continuity/voltage check with the system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer Troubleshooting Procedures). Diagnostic Aids
^ Refer to System Diagnosis.