Circuit/System Testing
WARNING: This page is about a different car, the 2012 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the C3 telematics communication interface control module battery. It may take up to 2 minutes for all vehicle systems to power down.
- Test for greater than 9.5 V between the B+ voltage circuit terminal A and low reference terminal B.
- If less than 9.5 V
Replace the C3 telematics communication interface control module battery.
- If greater than 9.5 V
- If less than 9.5 V
- Replace the K73 telematics communication interface control module.
NOTE:
The following procedure features a component test of the C3 telematics communication interface control module battery. It measures the voltage level of the C3 telematics communication interface control module battery. Do not disconnect or connect the C3 telematics communication interface control module battery with the ignition in any other position other than OFF, otherwise there is a risk of blowing an internal fuse to the C3 telematics communication interface control module battery rendering it inoperable.