Code
C2370
Generic
C — Chassis
Chassis Control Module Fault
Views:
UK: 9
EN: 13
RU: 13
AI status
Completed
Completed
100%
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
- Connect a professional scan tool, record all stored/pending codes and freeze frame, then note related communication (U) codes.
- Attempt to clear codes and recheck to see if C2370 returns immediately, intermittently, or only under certain conditions.
- Verify vehicle battery condition and measure module supply voltage with key ON and engine running. Check fuses and relays feeding the module.
- Inspect module connector and wiring for corrosion, water intrusion, damaged pins, or loose terminals. Perform wiggle test while monitoring live data or DTCs.
- Check ground points for low resistance to chassis; clean and re-tighten grounds as required.
- Verify CAN bus health: measure CANH/CANL idle voltages, check differential and termination resistance (~60 Ω). Isolate and repair any shorted/open segments.
- 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.
- If power/ground/communications and sensor inputs are good, check for available module software updates or reflashes per manufacturer procedure.
- 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.
- 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
Repair manuals
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Code
C2370
HYUNDAI
C — Chassis
TC Front Right Valve | TC Valve Secondary (USV2) Error
Views:
UK: 18
EN: 31
RU: 17
AI status
Completed
Completed
100%
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
- Connect a professional scan tool, record all stored/pending codes and freeze frame, then note related communication (U) codes.
- Attempt to clear codes and recheck to see if C2370 returns immediately, intermittently, or only under certain conditions.
- Verify vehicle battery condition and measure module supply voltage with key ON and engine running. Check fuses and relays feeding the module.
- Inspect module connector and wiring for corrosion, water intrusion, damaged pins, or loose terminals. Perform wiggle test while monitoring live data or DTCs.
- Check ground points for low resistance to chassis; clean and re-tighten grounds as required.
- Verify CAN bus health: measure CANH/CANL idle voltages, check differential and termination resistance (~60 Ω). Isolate and repair any shorted/open segments.
- 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.
- If power/ground/communications and sensor inputs are good, check for available module software updates or reflashes per manufacturer procedure.
- 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.
- 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
Repair manuals
Manual library for HYUNDAI
371
Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
HYUNDAI
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HYUNDAI: 2021
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HYUNDAI: 2020
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Veloster N
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