P1244

B : GENERATOR OVERCHARGING (P1244)

G92604t5 : CHECK THE VOLTAGE REGULATOR REQUEST SIGNAL WIRE FOR A SHORT TO BATTERY POSITIVE
1. Disconnect the ECM electrical connector EN16 and the generator electrical connector EN49.
2. Measure the resistance between electrical connector EN49-1 and the generator battery positive cable.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR short to the generator battery positive cable. CLEAR the DTC. TEST the system for normal operation.

-> No

G92604t6 : CHECK THE VOLTAGE REGULATOR REQUEST SIGNAL WIRE FOR OPEN CIRCUIT
1. Measure the resistance between electrical connector EN49-1 and the ECM electrical connector EN16-53.

- Is the resistance less than 5 ohms?

-> Yes
REPAIR the circuit from the ECM to the generator. CLEAR the DTC. TEST the system for normal operation.

-> No
INSTALL a new generator. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ECM.