Circuit/System Testing
WARNING: This page is about a different car, the 2010 GMC Canyon and 2010 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, test for battery voltage between the battery positive voltage circuit of the DLC and ground.
- If less than battery voltage, test the voltage supply circuit for a short to ground or an open/high resistance.
- Test for less than 1.0 ohm between the ground circuit of the DLC and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- If all tests normal, refer to the scan tool/CANdi module user guide.