Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the inside rearview mirror.
- Test for greater than 1 ohm between the keypad supply voltage terminal 12 and ground.
- If less than specified value, repair short to ground or replace the VCIM.
- Ignition ON, test for 9.8-10.2 volts between keypad supply voltage terminal 12 and ground.
- If less than the specified range, repair open circuit or replace the VCIM.
- If greater than the specified range, repair short to voltage or replace the VCIM.
- If all circuit test normal, replace the inside rearview mirror.