Circuit/System Testing
- Ignition OFF/Vehicle OFF, disconnect the harness connector at the X92 USB Receptacle. It may take up to 2 min for all vehicle systems to power down.
- Test for less than 10 Ω between the ground circuit terminal 4 and ground.
- Ignition OFF/Vehicle OFF.
- Test for less than 2 Ω in the ground circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, repair the open/high resistance in the ground connection.
- Go to next step: If less than 10 Ω
- Ignition ON/Vehicle in Service Mode.
- Verify that a test lamp illuminates between the control circuit terminal 6 and ground.
- If the test lamp does not illuminate and the circuit fuse is good
- Ignition OFF/Vehicle OFF.
- Test for less than 2 Ω in the control circuit end to end.
- If greater than 2 Ω, repair the open/high resistance in the circuit.
- If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse. Refer to Retained Accessory Power Malfunction
.
- If the test lamp does not illuminate and the circuit fuse is open
- Ignition OFF/Vehicle OFF.
- Test for infinite resistance between the control circuit terminal 6 and ground.
- If less than infinite resistance, repair the short to ground on the circuit.
- If infinite resistance, replace the X92 USB Receptacle.
- Go to next step: If the test lamp illuminates
- Test or replace the X92 USB Receptacle.