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Home DTC Codes C0846 Medium · 30-60min
C0846 Warning

OBD2 code C0846: Air system/suspension

Air suspension fault.

ECU: BCM

Detected Root Component

Chassis Component

Confidence level: low

Observed Symptoms

  • Rigid or uncomfortable suspension
  • Excessive body roll when cornering

Possible Causes

  • Defective sensor
  • Faulty solenoid valve
  • Faulty mixing flap actuator
  • Faulty BCM module
Diagnostic Progress 0 %
Difficulty Medium
Est. time 30-60min
Tools Required 5 tool(s)

Tools Required

multimeter OBD scanner TPMS activation tool wiring diagram oscilloscope (optional)

Interactive Diagnostic

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Diagnostic Result

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certainty points

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Parts likely to be the cause (Capteur ABS)

Capteur ABS

Capteur ABS

Photo d'illustration : Capteur ABS

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Frequently asked questions about code C0846

What does code C0846 mean?

OBD2 code C0846: Air system/suspension. Air suspension fault.

What are the symptoms of code C0846?

Code C0846 may cause: Rigid or uncomfortable suspension, Excessive body roll when cornering. The intensity of these symptoms varies depending on the vehicle and driving conditions.

What causes code C0846?

The most common causes of code C0846 are: Defective sensor, Faulty solenoid valve, Faulty mixing flap actuator, Faulty BCM module. A proper OBD2 diagnostic will pinpoint the exact cause.

Is it serious to drive with code C0846?

Code C0846 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.

How do I fix code C0846?

Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Defective sensor, Faulty solenoid valve, Faulty mixing flap actuator, Faulty BCM module. Difficulty: Medium · Estimated time: 30-60min.