Circuit/System Testing
- Ignition ON, verify that no G13 Generator or B18 battery current sensor DTCs are set that would cause a charging system concern.
- If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ignition OFF, measure the voltage across the battery terminals. The voltage should read 12.0 V or greater at room temperature.
- If not within the specified value, refer to Battery Inspection/Test .
- Engine ON, increase engine speed to 2, 500 RPM. Verify the battery voltage is between 12.6-15.0 V.
- If not within specified range, replace the G13 generator.
- Engine ON, increase engine speed to 2, 500 RPM. Turn ON all vehicle accessories. Verify the battery voltage is between 12.6-15.0 V.
- If not within specified range, replace the G13 generator.
NOTE:
Ensure vehicle accessories are OFF for the next step.