C2241

Code

Generic C — Chassis

Steering Angle Sensor Circuit Range/Performance

Brand: Generic

Type: C — Chassis

Views: UK: 17 EN: 16 RU: 16

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Faulty steering angle sensor (internal failure or contamination)
Damaged or shorted wiring harness or connectors to the SAS
Poor power supply or ground to the sensor (intermittent or low voltage)
Clock spring damage or poor contact in the steering column
Sensor misalignment or mechanical binding in the steering column
Faulty ABS/ESC/BCM control module or software error

Symptoms

ABS, ESC, or traction control warning lamp illuminated
Uncommanded stability or traction control interventions
Inability to complete SAS calibration or “steering angle not learned” message
Steering wheel center/angle mismatch with vehicle travel (off-center tracking)
Stored or recurring steering/ABS-related fault codes
Cruise control disabled or unavailable (on some vehicles)

What to check

Scan for active and history codes; record freeze frame and PID data
Compare raw steering angle PID with wheel speed/wheel angle PIDs during steering input
Visually inspect SAS connector, wiring, and clock spring for damage or corrosion
Measure sensor supply voltage and ground with key on (per manufacturer spec)
Perform wiggle test on harness while watching live steering angle data for drops/spikes
Attempt SAS zero/learn/calibration procedure using a factory scan tool and note errors

Signal parameters

Output is an angle value reported in degrees (can be signed or unsigned depending on OEM)
Common OEM ranges: 0–360°, ±180°, or ±720° depending on sensor design
Physical sensor types: dual Hall-effect outputs or digital encoder; analog outputs typically 0.5–4.5 V per channel
Reference supply commonly 5 V or 3.3 V; data often broadcast on CAN at 10–100 Hz
Any sudden jumps, saturation at endpoints, or values inconsistent with steering input indicate a fault

Diagnostic algorithm

Retrieve all related DTCs and freeze-frame data. Note when the fault occurs (key on, during driving, during turns).
Verify vehicle-specific service information for SAS nominal range and calibration procedures before replacement.
With a capable scan tool, view live steering angle PID and wheel speed sensors. Slowly turn the steering wheel and observe smooth, continuous angle change without jumps or dropouts.
Inspect the sensor connector, wiring harness, and clock spring for damage, broken wires, corrosion, or pin push-out. Repair as needed.
Check sensor power and ground at the connector with key on. Verify reference voltage is within spec and stable while turning wheel.
Perform a wiggle test on the harness and clock spring while watching live data; look for intermittent changes or fault set.
If wiring and power are good, follow manufacturer procedure to perform SAS zero/learn/calibration. If calibration fails, note error details for further faulting.
If calibration succeeds but fault returns, replace the steering angle sensor or clock spring assembly as required and then re-learn/calibrate.
After repair or adjustment, clear codes and perform a road test with live data monitoring to confirm the fault does not recur.
If intermittent or unexplained errors remain, inspect related control modules and CAN wiring, and consider module software update or ECU diagnosis.

Likely causes

Connector corrosion or broken wires at the sensor/clock spring
Sensor internal failure (most common after wear or impact)
Sensor not calibrated after steering/column service
Intermittent power/ground to the sensor

Fault status

⚠️ Status

Steering Angle Sensor Circuit Range/Performance — sensor output is outside expected range or inconsistent with other vehicle sensors, causing stability/ABS-related systems to be limited or disabled.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-3.5 hours