C0823Air Suspension Height Sensor Rear Right
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0823 is unknown to every public source, from code lists to the NHTSA index and maker documentation. The title refers to the rear right level sensor. Its reading matters most when loading, since the module uses the rear heights to keep ground clearance and headlamp aim constant. Stellantis gives the rear right corner its own code, C152A, and on the 2022-23 Ram 1500 with four-corner air suspension a stuck rear sensor reading was resolved by reprogramming the module, with the battery held between 13.2 and 13.5 V during the flash (08-127-23). HELLA's level sensor brief lists a 12-bit resolution and an operating range from -40 to 125 °C. A suspect sensor is checked against its lever position before replacement.
- What you may notice
- Service air suspension message
- Rear right sits low or high, load levelling inactive
- Likely causes
- LikelyRear right height sensor, lever or ball joint worn or broken
- PossibleCorroded or loose sensor connector, damaged harness
- RareAir suspension module software needing an update (Stellantis 08-127-23)
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.