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Diagnostic Code Index

DIAGNOSTIC CODE INDEX

DTC Description
DTC B1000  Electronic Control Unit (ECU) Performance
DTC B1001  Option Configuration Error
DTC B1004  Keep Alive Memory (KAM) Reset
DTC B1007  EEPROM Write Error
DTC B1009  EEPROM Checksum Mismatch
DTC B1372, B1373, or B1374 
  • DTC B1372 Device Ignition 1 ON and START Circuit Low
  • DTC B1373 Device Ignition 1 ON and START Circuit High
DTC B1382, B1383, or B1384 
  • DTC B1382 Device Ignition Accessory ON and ACC Circuit Low
  • DTC B1383 Device Ignition Accessory ON and ACC Circuit High
DTC B1420  Device Voltage
DTC B1441, B1442, or B1443 
  • DTC B1442 Device Ignition OFF, RUN, and CRANK Circuit Open
  • DTC B1443 Device Ignition OFF, RUN, and CRANK Circuit High
DTC B1477 or B1478 
  • DTC B1477 Retained Accessory Power Control Circuit Low
  • DTC B1478 Retained Accessory Power Control Circuit High
DTC U1000 and U1255  Class 2 Data Link
DTC U1001-U1254  Module U1XXX Loss Communication
DTC U1300, U1301, or U1305 
  • DTC U1300 Class 2 Data Link Low
  • DTC U1301 Class 2 Data Link High