U1900 Diagnostic Trouble Code Discussion for March 2018
CAN System Communication Error
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| Help Request | Posted | |
| 2004 Mazda 6 i 2.3L MIL Lamp on VIN: 1YVHP85C64 U1900: CAN System Communication Error. vehicle drove in in, CEL on, TCS Light on, Battery Light on, no tachometer function, no speedometer function, Scanner reports PCM not present (Car runs)Charging circuit test good, Power and ground present at pcm, Main relay does not switch off with ignition of... |
March 12, 2018 | |
| 2004 Mazda 6 i 2.3L MIL Lamp on VIN: 1YVHP85C64 U1900: CAN System Communication Error. vehicle drove in in, CEL on, TCS Light on, Battery Light on, no tachometer function, no speedometer function, Scanner reports PCM not present (Car runs)Charging circuit test good, Power and ground present at pcm, Main relay does not switch off with ignition of... |
March 15, 2018 |
