Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit/System Testing
- Ignition OFF, disconnect the X2 and X3 connectors at the K182 Parking Assist Control Module.
- Test for infinite resistance between the following voltage reference circuit terminals and ground:
- Terminal 4 X2
- Terminal 7 X3 (with UD5/UKZ)
- If less than infinite resistance
Repair the short to ground on circuit 2374 or 6581.
- Go to next step: If infinite resistance
- Ignition ON.
- Test for less than 1 V between the following voltage reference circuit terminals and ground:
- Terminal 4 X2
- Terminal 7 X3 (with UD5/UKZ)
- If 1 V or greater
Repair the short to voltage on circuit 2374 or 6581.
- Go to next step: If less than 1 V
- Ignition OFF, connect the X2 and X3 connectors at the K182 Parking Assist Control Module.
- Disconnect the connector at each B306 Parking Assist Alarm Sensor, ignition ON.
- Verify DTC B1A30 is not set as current.
- If DTC B1A30 is set as current
Replace the K182 Parking Assist Control Module.
- Go to next step: If DTC B1A30 is not set as current
- If DTC B1A30 is set as current
- Connect each B306 Parking Assist Alarm Sensor, one at a time. Verify DTC B1A30 is not set as current after connecting each B306 Parking Assist Alarm Sensor.
- If DTC B1A30 is set as current
Replace the B306 Parking Assist Alarm Sensor that was connected immediately before DTC B1A30 set as current.
- Go to next step: If DTC B1A30 is not set as current
- If DTC B1A30 is set as current
- A fault is currently not present and may be an intermittent condition.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.