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Home / DTC / C2370 — Chassis Control Module Fault

C2370 — Chassis Control Module Fault

Detailed page for trouble code C2370.

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C2370

Generic C — Chassis

Chassis Control Module Fault

Brand: Generic
Type: C — Chassis
Views: UK: 1 EN: 3 RU: 2
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Page language: EN

Causes

  • Faulty chassis control module (internal electronics or software failure)
  • Low or intermittent battery supply voltage to the module
  • Poor ground(s) or corroded ground connection at module
  • Blown fuse or faulty relay feeding the module
  • Damaged wiring harness or connector (open/short/low resistance)
  • Loss or corruption of CAN/LIN bus communication

Symptoms

  • Illuminated ABS, ESC/Traction Control, or stability warning lamps
  • Reduced or disabled stability/traction/ABS functions
  • Fault messages on dash or cluster (e.g., 'service stability control')
  • Intermittent or permanent loss of vehicle dynamics control
  • Possible drivability issues if related systems are deactivated

What to check

  • Retrieve all stored and pending codes and freeze frame data with a capable scan tool
  • Check battery voltage and charging system under load (12–14.5 V expected)
  • Inspect fuses and relays for the chassis control module circuit
  • Visually inspect module connector(s) for corrosion, bent pins, moisture, or damage
  • Verify good chassis and engine grounds near module and battery
  • Check CAN/LIN bus continuity and termination resistance (approx. 60 Ω for CAN)

Signal parameters

  • Module supply voltage: ~12–14.5 V (with key ON and engine running)
  • Ground continuity: near 0 Ω to chassis
  • CANH and CANL idle voltages: roughly 2.5 V each (measure with respect to ground)
  • CAN differential idle: small/no dominant differential until bus activity; termination ≈ 60 Ω between CANH and CANL
  • Wheel speed sensors: pulsed AC or square wave signals that vary with wheel rotation (frequency increases with speed)
  • Yaw rate sensor: analog or digital rate output in deg/s or mV proportional to rotation

Diagnostic algorithm

  1. Connect a professional scan tool, record all stored/pending codes and freeze frame, then note related communication (U) codes.
  2. Attempt to clear codes and recheck to see if C2370 returns immediately, intermittently, or only under certain conditions.
  3. Verify vehicle battery condition and measure module supply voltage with key ON and engine running. Check fuses and relays feeding the module.
  4. Inspect module connector and wiring for corrosion, water intrusion, damaged pins, or loose terminals. Perform wiggle test while monitoring live data or DTCs.
  5. Check ground points for low resistance to chassis; clean and re-tighten grounds as required.
  6. Verify CAN bus health: measure CANH/CANL idle voltages, check differential and termination resistance (~60 Ω). Isolate and repair any shorted/open segments.
  7. Monitor live sensor inputs required by the chassis module (wheel speed, yaw, steering angle) for valid and consistent signals; repair any faulty sensors or circuits.
  8. If power/ground/communications and sensor inputs are good, check for available module software updates or reflashes per manufacturer procedure.
  9. If reprogramming does not clear the fault and all inputs are verified, consider module replacement. Follow manufacturer instructions for coding, calibration, and immobilizer pairing if required.
  10. After repairs, clear codes and perform road test to confirm the fault does not return and that stability/ABS functions operate normally.

Likely causes

  • Loose or corroded ground or power connection to chassis module
  • CAN bus communication fault (open/short/termination issue)
  • Module connector water ingress or damaged pins
  • Failed chassis control module

Fault status

⚠️ Status
Chassis Control Module Fault — check power, grounds, comms, connectors and sensors; module fault possible
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

C2371 C2373 C2400 U0100 U0121 U0401
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