Circuit/System Testing
WARNING: This page is about a different car, the 2012 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle OFF, disconnect the harness connector at the S51 telematics button assembly.
- Doors closed, courtesy lamps OFF, test for less than 10 Ω between the ground circuit terminal E and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Vehicle in Service Mode, command the green LED OFF with a scan tool. Test for less than 1 V between the control circuit terminal F and ground.
- If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the K73 telematics communication interface control module.
- Command the green LED ON with a scan tool. Test for greater than 9 V between the control circuit terminal F and ground.
- If less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K73 telematics communication interface control module.
- Command the red LED OFF with a scan tool. Test for less than 1 V between the control circuit terminal G and ground.
- If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the K73 telematics communication interface control module.
- Command the red LED ON with a scan tool. Test for greater than 9 V between the control circuit terminal G and ground.
- If less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K73 telematics communication interface control module.
- If all circuits test normal, replace the S51 telematics button assembly.