Troubleshooting Hints - Steering Wheel Controls

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check RADIO Fuse 17 in I/P Fuse Block.
2. Check that ground G200 is clean and tight.. 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 a 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 to Troubleshooting Procedures). Diagnostic Aids
^ Refer to System Diagnosis.