DTC P0684 code: Glow plug control module/ECM/PCM communication range/performance. Fault type Drive system in category Malfunction associated with the output and input circuits of the central control unit.
Error or fault (reason, cause): Wiring, poor connection, glow plug control module, ECM/PCM.
Error Code DTC / Diagnostic Trouble Code:
P0684.
Hexadecimal Code: 0684.
The orange color P0684 indicates car fault. What to do when the car started to show P0684 error. After starting the car a signal P0684 lights orange. What means P0684 in orange color. Auto P0684 error repair code.
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