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DTC B1318: Notes

DTC B1318 DIAGNOSTIC PROCEDURE

DTC B1318 Battery voltage low
DETECTION CONDITION  Input voltage from the battery is excessively low
POSSIBLE CAUSE 
  • Open circuit in wiring harness between PJB terminal J-01 F and battery
  • Open circuit in wiring harness between PJB terminal J-03 AP and battery
  • Short to GND in wiring harness between PJB terminal J-01 F and battery
  • Short to GND in wiring harness between PJB terminal J-03 AP and battery
  • Battery malfunction
  • Generator malfunction
  • PJB malfunction
G04956576Courtesy of MAZDA MOTORS CORP.