P1629

D : GENERATOR LOAD MONITORING SIGNAL FAILURE (P1629)

G92604t13 : CHECK THE SIGNAL WIRE FOR OPEN CIRCUIT
1. Disconnect the ECM electrical connector EN16 and the generator electrical connector EN49.
2. Measure the resistance between electrical connector EN49-3 and the ECM electrical connector EN16-65.

- Is the resistance less than 5 ohms?

-> Yes

-> No
REPAIR the circuit from the ECM to the generator. CLEAR the DTC. TEST the system for normal operation.

G92604t14 : CHECK THE SIGNAL WIRE FOR A SHORT TO BATTERY POSITIVE
1. Measure the resistance between electrical connector EN49-3 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

G92604t15 : CHECK THE SIGNAL WIRE FOR A SHORT TO GROUND
1. Measure the resistance between electrical connector EN49-3 and ground.

- Is the resistance less than 10,000 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.