DTC U0164: 68 Communication Error Between Climate Control Unit: Notes
DTC U0164:68 (FRONT BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error between climate control unit |
| Detection condition |
- The front body control module (FBCM) could not receive signals from the climate control unit for 5 s or more
with the ignition switched ON (engine off or on).
|
| Fail-safe |
- |
| Possible cause |
- Climate control unit connector or terminal malfunction
- Front body control module (FBCM) connector or terminal malfunction
- Short to ground in wiring harness between climate control unit terminal K and front body control module (FBCM) terminal 2J
- Short to power supply in wiring harness between climate control unit terminal K and front body control module (FBCM) terminal 2J
- Open circuit in wiring harness between climate control unit terminal K and front body control module (FBCM) terminal 2J
- Climate control unit malfunction
- Front body control module (FBCM) malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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