C0820Air Suspension Height Sensor Front Left
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Nobody documents C0820 in the open; apart from Honda bulletin IDs that happen to contain the string, searches of lists and indexes found nothing. The title concerns the ride height sensor at the left front corner, a lever on the control arm turning an angle sensor that reports body height to the air suspension module. Stellantis uses its own numbers here: C151E for a stuck left front sensor on the 2022-23 Ram 1500, fixed by new module software (08-127-23, 08-150-24), and C1567 for an implausible left front level on the 2021 Grand Cherokee, where pinched front air lines were the cause. Without a valid front left height, the module stops levelling that corner or the whole car and shows a service message.
- What you may notice
- Service air suspension message
- Front left corner sits too high or too low, height changes refused
- Likely causes
- LikelyBent, detached or seized sensor lever or link at the front left control arm
- PossibleWater, corrosion or chafing at the sensor plug or harness in the wheel arch
- RareAir suspension module software reporting a false stuck sensor (Stellantis 08-150-24)
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.