|
|
Symptom: P1682-CHARGING SYSTEM VOLTAGE TOO LOW When Monitored and Set Condition: P1682-CHARGING SYSTEM VOLTAGE TOO LOW When Monitored: With the ignition on. Engine RPM greater than 1152 RPM. With no other charging system codes set. Set Condition: The battery sense voltage is 1 volt below the charging goal for 13.47 seconds. The PCM senses the battery voltage turns off the field driver and senses the POSSIBLE CAUSES B+ CIRCUIT HIGH RESISTANCE GENERATOR GROUND HIGH RESISTANCE INTERMITTENT CONDITION (K20) GENERATOR FIELD DRIVER CIRCUIT OPEN (K342) ASD RELAY OUTPUT CIRCUIT OPEN GENERATOR TEST ACTION APPLICABILITY 1 NOTE: Inspect the vehicle for aftermarket accessories that may exceed the t, read the Target Charging Voltage. Is the Target Charging Voltage above 15.1 volts? All Yes → Go To 8 No → Go To 2 2 WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A All Yes → Repair the B+ circuit for high resistance between the Generator and Battery. No → Go To 3 203 DRIVEABILITY - SBEC |