Circuit/System Verification
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, measure and record the battery voltage at the terminals. The voltage should be between 12.0-15.0 V.
- If not within the specified range, refer to Battery Inspection/Test .
- Verify that a test lamp illuminates between the starter motor B+ terminal T X1 and ground.
- If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
- Test for less than 0.5 V between the positive battery cable and terminal T X1 at the starter motor as ignition is switched to start position.
- If greater than the specified value, replace the positive battery cable.
- Test for less than 0.5 V between the negative battery cable and the starter motor case as ignition is switched to start position.
- If greater than the specified value, replace the negative battery cable.
- Remove the drive belts. Refer to one of the following:
- Ignition Start, verify the engine does not crank normal.
- If the engine cranks normal, inspect the engine and belt drive system for mechanical binding, seized generator etc.
- If all circuits test normal, replace the starter motor.