C0822 code meaning
Air Suspension Height Sensor Rear Left
What C0822 means
For C0822 the search of code lists, NHTSA and the GM, Saab and Mitsubishi sources returned nothing. Per its title it covers the rear left level sensor of an air suspension. At the rear axle the harness runs close to the subframe and fuel tank, which is where Stellantis found the cause of its own code C1526 subcode 11, short to ground, on a 2019 Grand Cherokee: the wiring rubbed on bracket edges and had to be repaired, isolated and tied away (STAR S2108000161). On the 2022-23 Ram 1500 the same sensor sets C1526-2A when the module considers it stuck. HELLA notes that many such sensors work with two redundant channels, so the module can spot a split between them before the reading is used.
C0822 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C0822
- Service air suspension message
- Rear left sags or rear ride height not adjusted
Common causes of C0822
- Most likelyHarness rubbing on subframe or bracket edges near the fuel tank
- PossibleRear left height sensor or its link rod damaged
- Less likelyModule software misjudging the sensor as stuck
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Height sensor rlAir suspension moduleSensor wiring
What each part of C0822 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 22 | The exact fault in that area. |
What to do next
- Note C0822 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C0822
What does C0822 mean?
C0822 means "Air Suspension Height Sensor Rear Left". For C0822 the search of code lists, NHTSA and the GM, Saab and Mitsubishi sources returned nothing. It is a generic code, so it means the same on every make.
Is it safe to drive with C0822?
Drive gently and only to a workshop. With C0822 the car can go into limp mode (reduced power) to protect itself.
Will C0822 fail an emissions test?
C0822 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C0822 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will C0822 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.