C006C

Code

Generic C — Chassis

Stability System

Brand: Generic

Type: C — Chassis

Views: UK: 21 EN: 28 RU: 33

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Faulty wheel speed, yaw rate, lateral acceleration or steering angle sensor
Damaged wiring harness or poor connector/corrosion to one of the stability sensors
Low or unstable battery/charging system voltage
Faulty ABS/ESC control module or internal software error
Loss of CAN or module communication
Incorrect sensor calibration or steering angle sensor needing relearn

Stability/ESC warning lamp illuminated (may be accompanied by ABS or traction lamp)
Traction control or stability assist disabled; no traction intervention
Reduced braking/stability performance in low-traction conditions
Possible stored ABS or communication fault codes
Occasional loss of instrumentation or erratic vehicle sensor readouts

Read and record all stored codes and freeze-frame data with a capable scan tool
Check battery voltage and charging system (resting & cranking voltages)
Visually inspect wiring and connectors for the ABS/ESC sensors and module for damage or corrosion
Confirm CAN/communication status and check for related U-codes
Perform a steering angle sensor self-test/recalibration if available
Compare wheel speed, yaw rate and lateral acceleration signals while driving or on a lift using a scan tool or oscilloscope

Steering angle sensor: ~0° centered when wheels straight; output should change smoothly with steering, no sudden jumps (units: degrees)
Yaw rate sensor: ~0 deg/s at rest; changes proportionally with vehicle rotation (range depends on vehicle, typical ±200 deg/s)
Wheel speed sensors: all four speeds should match within a few km/h when driving straight; no intermittent dropouts
Lateral acceleration: ~0 g when straight; smooth responsive changes with lateral load (units: g or m/s²)
Power supply: stable 12 V nominal to module; reference sensor supply typically +5 V present at sensors

Capture all DTCs and freeze-frame data. Note any related ABS, traction or communication codes.
Verify battery/resting voltage >= 12.4 V and charging system output ~13.5–14.8 V. Repair charging/battery issues first.
Visually inspect wiring, connectors and grounds for the ABS/ESC module and sensors. Repair any physical damage or corrosion.
Clear codes and attempt to reproduce. If code returns, perform live-data monitoring of wheel speeds, yaw, lateral accel and steering angle while driving or on a lift.
If a single sensor shows implausible or no signal, test that sensor directly (voltage reference, output signal, resistance if applicable). Replace sensor if out of spec.
Check CAN bus for errors and verify communication between ABS/ESC module and other modules. Repair any wiring or module communication faults.
If steering angle sensor is out of center or shows incorrect values, perform manufacturer procedure for steering angle calibration/relearn after repairs or wheel alignment.
If wiring and sensors test good but fault persists, consider module software update or replacement following manufacturer diagnostic flow.
After repair, erase codes and perform road test verifying stable sensor readings and that stability/ABS warnings do not return.

Corroded/loose connector at a wheel speed, yaw or steering angle sensor
Failed yaw rate or lateral acceleration sensor
Steering angle sensor not calibrated after an alignment or component replacement
Intermittent CAN bus fault or bad ground to the ABS/ESC module
Battery voltage below specification or poor battery terminal connections