Pinpoint Test G834532P4 : P163200 Charging System Fault

Pinpoint Tests

PINPOINT TEST G834532p4 : P163200 CHARGING SYSTEM FAULT

G834532t9 : CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING
1. Connect a suitable voltmeter across the battery terminals.
2. Start the engine and allow to idle with no electrical loads applied.
3. Measure the maximum voltage achieved at the battery after start.

- Is the voltage greater than 13 volts?

->YES
GO to Pinpoint Test G834532t10.

->NO
INSTALL a fully charged battery. GO to Pinpoint Test G834532t13.

G834532t10 : CHECK THE GENERATOR 'S' TERMINAL FOR BATTERY VOLTAGE
1. Set ignition status to OFF.
2 DISCONNECT generator electrical connector PI048.
3. MEASURE the voltage at generator electrical connector PI048 pin 3.

- Is the voltage greater than 10 volts?

->YES
GO to Pinpoint Test G834532t13.

->NO
GO to Pinpoint Test G834532t11.

G834532t11 : CHECK FUSE 5 IN REAR JUNCTION BOX (RJB)
1. Check fuse 5 in the RJB.

- Is the fuse OK?

->YES
REPAIR the circuit between the generator electrical connector PI048 pin 3 and fuse 5 in the RJB. CLEAR the DTC, test the system for normal operation.

->NO
GO to Pinpoint Test G834532t12.

G834532t12 : CHECK THE GENERATOR 'S' TERMINAL FOR SHORT TO GROUND
1. MEASURE the resistance between generator electrical connector PI048 pin 3 and ground.

- Is the resistance less than 10,000 ohms?

->YES
REPAIR the circuit between the generator electrical connector PI048 pin 3 and fuse 5 of the RJB. INSTALL a new fuse, CLEAR the DTC, test the system for normal operation.

->NO
INSTALL a new fuse, CLEAR the DTC, test the system for normal operation.

G834532t13 : CHECK FOR BATTERY VOLTAGE AT THE GENERATOR 'L' TERMINAL
1. Set ignition status to OFF.
2. Disconnect generator electrical connector PI048.
3. Set ignition status to ON.
4. Measure the voltage at generator electrical connector PI048 pin 1.

- Is the voltage greater than 10 volts?

->YES
INSTALL a new generator.
Generator - Vehicles Without: Supercharger (86.10.02) CLEAR the DTC, test the system for normal operation.

->NO
No GO to Pinpoint Test G834532t14.

G834532t14 : CHECK THE GENERATOR 'L' LINE FOR SHORT TO GROUND
1. Set ignition status to OFF.
2. Disconnect battery.
3. MEASURE the resistance between the generator electrical connector PI048 pin 1 and ground.

- Is the resistance less than 1,000 ohms?

->YES
REPAIR the circuit between the generator electrical connector PI048 pin 1 and the Engine Control Module (ECM). CLEAR the DTC, test the system for normal operation.

->NO
GO to Pinpoint Test G834532t15.

G834532t15 : CHECK THE GENERATOR 'L' LINE FOR SHORT TO POWER
1. MEASURE the resistance between the generator electrical connector PI048 pin 1 and battery positive.

- Is the resistance less than 10,000 ohms?

->YES
REPAIR the circuit between the generator electrical connector PI048 pin 1 and the Engine Control Module (ECM). CLEAR the DTC, test the system for normal operation.

->NO
GO to Pinpoint Test G834532t16.

G834532t16 : CHECK THE GENERATOR 'L' LINE FOR OPEN CIRCUIT
1. Disconnect the ECM electrical connector PI300.
2. MEASURE the resistance between the generator electrical connector PI048 pin 1and ECM electrical connector PI300 pin 16.

- Is the resistance less than 5 ohms?

->YES
Install a new generator.
Generator - Vehicles Without: Supercharger (86.10.02) CLEAR the DTC, test the system for normal operation.

->NO
REPAIR the circuit between the generator electrical connector PI048 pin 1 and the ECM electrical connector PI300 pin 16. CLEAR the DTC, test the system for normal operation.