P1629

D : GENERATOR LOAD MONITORING SIGNAL (FR) FAILURE (P1629). VEHICLES FITTED WITH 2.5L OR 3.0L ENGINE.

G157288t16 : CHECK GENERATOR CONNECTOR PI47 FOR DAMAGE
1. INSPECT generator connector PI47 for damage, ensure connector is correctly installed.

- Is the generator connector PI47 damaged?

-> Yes
REPAIR generator connector PI47. TEST the system for normal operation

-> No

G157288t21 : CHECK IGNITION FEED TO GENERATOR ELECTRICAL CONNECTOR
1. Turn the ignition switch to the on position
2. MEASURE the voltage at generator electrical connector PI47 pin 2 (GO)

- Is the voltage more than 10 volts?

-> Yes

-> No
REPAIR the circuit between the ignition switch and the generator electrical connector. CLEAR the DTC. TEST the system for normal operation.

G157288t14 : CHECK THE SIGNAL WIRE (FR) FOR A SHORT TO BATTERY POSITIVE
1. Disconnect the battery ground cable.
2. Measure the resistance between electrical connector PI47 pin 3 (WR) and the generator battery positive cable.

- Is the resistance less than 10,000 ohms?

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

-> No

G157288t15 : CHECK THE SIGNAL WIRE (FR) FOR A SHORT TO GROUND
1. Measure the resistance between electrical connector PI47 pin 3 (WR) 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

G157288t13 : CHECK THE SIGNAL WIRE (FR) FOR OPEN CIRCUIT
1. Disconnect the ECM electrical connector PI1 and the generator electrical connector PI47.
2. Measure the resistance between electrical connector PI47 pin 3 (WR) and the ECM electrical connector PI1 pin 65 (WR).

- Is the resistance less than 5 ohms?

-> Yes
INSTALL a new generator. CLEAR the DTC. TEST the system for normal operation.

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