Component Tests and General Diagnostics

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check Fuses 7 and s in I/P Fuse Block.
2. Check for a poor connection at G110, G200 and G400.
3. If the Remote Control Door Lock Remote Control Door Lock Transmitter fails to operate from a normal distance, up to 7 to 10 meters (22 to 33 ft.), check for two conditions: weak batteries in Remote Control Door Lock Remote Control Door Lock Transmitter (expected life approximately 2 years depending on use); or close proximity to a Radio Transmitter, such as a Radio Station Tower, airport Transmitter, and some mobile or CB Radios. If these conditions are not the problem, enter into BCM Diagnostic mode and determine the RF performance of the Remote Control Door Lock Transmitter and BCM Receiver by setting Remote Control Door Lock Transmitter DCTs.
4. Try a second Remote Control Door Lock Transmitter, if available. If the second Remote Control Door Lock Transmitter works, remove the Battery and install the Battery in the original Remote Control Door Lock Transmitter. Try the original Remote Control Door Lock Transmitter again. If the original Remote Control Door Lock Transmitter still does not work, it is defective.
^ 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 (see "Troubleshooting Procedures"). Diagnostic Aids
^ Refer to System Diagnosis.