Circuit/System Testing

Rear Park Assist (UD7)

1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
2. Test for infinite resistance between the 12 V reference circuit terminal 4 X2 and ground.
   • If less than infinite resistance 
   1. Ignition OFF, disconnect the harness connector at each of the B306 Rear Parking Assist Sensors.
   2. Test for infinite resistance between the 12 V reference circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If less than 2 Ω, replace the appropriate B306 Rear Object Sensor.
   • Go to next step: If infinite resistance 
3. Ignition ON.
4. 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.

   • Go to next step: If less than 1 V 
5. Replace the K182 Parking Assist Control Module.

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

1. Ignition OFF, disconnect X2 and X3 harness connectors at the K182 Parking Assist Control Module, ignition ON.
2. 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.

   • Go to next step: If less than 1 V 
3. Ignition OFF.
4. 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.

   • Go to next step: If infinite resistance 
5. Replace the K182 Parking Assist Control Module.