Pinpoint Test G215852P1

PINPOINT TEST G215852p1 : P1146: GENERATOR CONTROL CIRCUIT, LOW VOLTAGE OR OPEN CIRCUIT

G215852t13 : CHECK THE IGNITION SUPPLY TO THE GENERATOR
1. Turn the ignition switch to the OFF position.
2. Disconnect the generator electrical connector, PI47.
3. Turn the ignition switch to the ON position.
4. Measure the voltage between PI47, pin 02 (GO) and GROUND.

- Is the voltage less than 10 volts?

-> YES
REPAIR the circuit between PI47, pin 02 and battery. This circuit includes the passenger junction fuse box (fuse 33), the ignition switch and the megafuses. CLEAR the DTC, test the system for normal operation.

-> NO
GO to Pinpoint Test G215852t4.

G215852t4 : CHECK THE GENERATOR TO ECM CONTROL CIRCUIT FOR HIGH RESISTANCE
1. Disconnect the ECM electrical connector, PI01.
2. Measure the resistance between PI47, pin 01 (YR) and PI01, pin 53 (YR).

- Is the resistance greater than 5 ohms?

-> YES
REPAIR the high resistance circuit. 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, contact dealer technical support for advice on possible ECM failure.