Diagnosis/Troubleshooting

DIAGNOSIS/TROUBLESHOOTING

The GM III contains an EEPROM fault memory Faults that occur with any of the sub-systems of the ZKE are stored in the GM III Diagnosis and troubleshooting is carried out with the DIS tester. The diagnostic link is through the IKE or Instrument cluster over the K bus to the GM.







Additional sub-fault memories are incorporated in all of the peripheral modules. The information stored in these location is used to pin point defective components.

BASIC TROUBLESHOOTING
- Always personally verify the customer complaint.
- Always verify that the complaint is truly a system malfunction.
- Perform a Quick Test to determine if the vehicle systems have logged fault codes.
- Call up the faulted system or appropriate test schedule to verity the correct control module is installed in the car.
- Follow the Diagnostic Information System (DIS) on screen instructions and perform all tests as specified.
- Use the DIS and fault symptom diagnostic procedures as trained.
- Follow the appropriate test module procedures for systems that malfunction but fail to set faults in memory.
- System problems which elude diagnostic procedures must be brought to the attention of BMW of North America, Inc.
- BMW Technical Assistance Hotline 1-800-472-7222