C2756

Code

Generic C — Chassis

Steering Angle Sensor Circuit Fault

Brand: Generic

Type: C — Chassis

Views: UK: 15 EN: 34 RU: 23

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Open or shorted wiring to the steering angle sensor
Corroded or loose connector terminals
Blown fuse or loss of sensor power/ground
Failed steering angle sensor (internal electronics)
Faulty steering column module or EPS control module
CAN/LIN communication fault between sensor and ECU

Symptoms

Illuminated ABS, ESC/Traction Control or steering warning lights
Loss or degradation of stability/traction control functionality
Fault stored in steering, ABS or power steering modules
Steering angle reading incorrect or unavailable in scan tool data
Possible warning chimes or locked adaptive steering features
In some cases, poor steering feel if EPS enters limp mode

What to check

Read and record stored codes and freeze-frame data with a scan tool
Verify steering angle sensor live data (angle and torque) while turning wheel
Inspect sensor connector and wiring for corrosion, damage or pin push-out
Check fuse(s) and measure sensor power (typically 5 V reference) and ground
Backprobe sensor connector while operating steering to look for intermittent signals
Scan for related CAN/LIN bus communication codes and check bus integrity

Signal parameters

Reference supply: typically 5 V (verify with vehicle-specific data)
Ground: near 0 V (good continuity to chassis ground)
Output signal: varies with wheel angle, typically 0–5 V or centered near 2.5 V at straight-ahead
Signal behavior: smooth change in voltage with wheel rotation; no sudden drops or open circuit
CAN/LIN: sensor or steering module should transmit angle messages at a regular rate (verify message presence with scanner)
Resistance/continuity: harness continuity between sensor and module should be good; no short to battery or ground

Diagnostic algorithm

Connect a diagnostic scan tool, read and record all related codes and live data. Note freeze frame values.
Verify whether multiple modules report steering angle data; identify which module stores C2756.
Visually inspect the steering column area, sensor connector and wiring for damage, corrosion or pin issues.
With ignition on, backprobe the sensor connector: check for reference voltage, ground continuity and output signal while steering the wheel slowly through full travel.
If power/ground are missing or out of range, trace and repair wiring, fuses or connectors before replacing the sensor.
If power/ground are good but output is erratic or absent, perform a wiggle test on the harness while monitoring live angle value to find intermittent faults.
Check CAN/LIN bus communication with a scope or capable scan tool; repair bus faults if messages are missing or corrupted.
If wiring and bus are good, replace the steering angle sensor or steering column module as indicated by vehicle-specific diagnostics.
After repair or replacement, clear codes and perform required steering angle sensor calibration/zero-point relearn per manufacturer procedure.
Road test to confirm proper operation and that the code does not return.

Likely causes

Damaged/loose connector at the sensor
Intermittent or missing 5 V reference or ground
Wiring chafing causing intermittent short to ground or battery
Failed sensor electronics (no valid angle signal)
Loss of CAN network communication to the module reporting the sensor

Fault status

⚠️ Status

Steering Angle Sensor Circuit Fault: sensor signal, power/ground or communication is outside expected parameters. This can disable stability/traction functions and requires wiring, sensor or module diagnostics and possible calibration after repair.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-2 hours