Circuit/System Testing

Rear Park Assist (UD7)

Ignition OFF, disconnect X2 harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON.
Test for less than 1 V between the 12 V reference circuit terminal 4 and ground.
- If 1 V or greater
  Repair the short to voltage on the circuit.
- If less than 1 V
Ignition OFF.
Test for infinite resistance between 12 V reference circuit terminal 4 ground.
- If not infinite resistance
  Repair the short to ground on the circuit.
- If infinite resistance
Replace the K41 Front and Rear Parking Assist Control Module.

Front and Rear Park Assist (UD5) and Advanced Park Assist (UFQ)

Ignition OFF, disconnect X2 and X3 harness connectors at the K41 Front and Rear Parking Assist Control Module, ignition ON.
Test for less than 1 V between the 12 V reference circuit terminals listed below and ground.
- X2 Terminal 4
- X3 Terminal 1
- If 1 V or greater
  Repair the short to voltage on the circuit.
- If less than 1 V
Ignition OFF.
Test for infinite resistance between 12 V reference circuit terminals listed below and ground.
- X2 Terminal 4
- X3 Terminal 1
- If not infinite resistance
  Repair the short to ground on the circuit.
- If infinite resistance
Replace the K41 Front and Rear Parking Assist Control Module.