OBD-II code · Chassis
C0620 Park Assist Module Communication
The chassis control module has detected a communication fault with the park assist module. Parking sensors, surround view and automatic parking functions are unavailable until communication is restored.
Is it safe to drive with C0620?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyCommunication bus fault
- PossiblePark assist module failed
- Less likelyPower supply or ground fault to module
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Park Assist Module, Communication Bus, Chassis Control Module
Related codes
- C061DVariable Effort Steering Actuator Control Circuit Low
- C061EVariable Effort Steering Actuator Control Circuit High
- C061FVariable Effort Steering Actuator Control Circuit Performance
- C0621Variable Effort Steering Lock/Safety Actuator Control Circuit Low
- C0622Variable Effort Steering Lock/Safety Actuator Control Circuit High
- C0623Variable Effort Steering Lock/Safety Actuator Control Circuit Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.