U0243Lost Communication With Parking Assist Control Module B
- Generic OBD-II code · Network
- How the car detects it
- Parking assist module B is a second parking controller beside the main one, which J2012 covers with U0159. Stellantis uses the code by name: on 2021–2023 Jeep Grand Cherokee and 2022–2023 Wagoneer and Grand Wagoneer the cluster and the module listed as ETM store U0243-00 for lost contact with the central vision park assist module (CVPAM), which handles the surround view cameras, while body, steering and blind spot modules log U0159 (case S2208000172). Customers see a blue screen in the camera views. The first step is to pull fuse F48 (10 A) for five seconds so the module restarts; software arrived through recall 56A. Stellantis adds that the scan tool shows the CVPAM as PAM. Without module B, camera views and parking aids drop out; driving is unaffected. Data errors from B are U0544.
- What you may notice
- Blue or blank screen in surround, front or rear camera view
- Parking aid unavailable message
- U0159 stored in several other modules at the same time
- Likely causes
- LikelyCamera/park module hung by software, recovers after a power reset or update
- PossibleModule B without power or ground (fuse, connector)
- PossibleBus wiring or connector to the module damaged or corroded
- RareModule B internally faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.