Circuit/System Testing
WARNING: This page is about a different variant/trim than selected.
- Remove the generator control module cable cover. Refer to Generator Control Module Cable Cover Replacement .
- Remove the X10 B+ cable at the K59 starter generator control module, and tape the cable ring terminal.
- Connect a 3A fused jumper wire between C1 12-volt positive battery post and the K59 starter generator control module X10 B+ terminal.
- Connect C1 12V battery negative terminal.
- Ignition ON, observe the scan tool parameter Low-Voltage Circuit Voltage in the 14V Power Module data list. The parameter should be within 0.5 volt of the actual 12-volt battery voltage.
- If the voltage is not within the specified range, replace the K59 starter generator control module.
- Ignition OFF, remove the 3A fused jumper wire at the C1 12-volt battery.
- Disconnect the C1 12V battery positive terminal and measure the resistance of the 14 V Power Module positive harness between the X10 connector at the K59 starter generator control module and the C1 12V battery positive terminal.
- If the resistance is greater than 1.0 Ω, repair the high resistance condition in the 12-volt circuit.
- If the resistance is less than 1.0 Ω, replace the K59 starter generator control module.