C2003
Steering Angle Sensor Signal Intermittent
Causes
- Loose, corroded or damaged connector at the SAS
- Frayed or broken wiring in the steering column harness (intermittent open/short)
- Faulty steering angle sensor (internal electronics intermittent)
- Poor sensor ground or disturbed 5 V reference supply
- CAN/LIN communication errors between SAS module and ABS/ESP module
- Incorrect or lost sensor calibration (after battery disconnect/repair)
Symptoms
- Steering angle warning lamp or ABS/ESP warning lamp illuminated
- Intermittent or unavailable electronic power steering assist
- Traction control or stability control disabled or performing erratically
- Stored/secondary DTCs related to ABS, ESP, steering
- Inconsistent steering angle reading in live data (jumps, dropouts)
What to check
- Read all stored and freeze-frame codes with a scan tool; note accompanying ABS/ESP/U-codes
- Monitor steering angle live data while slowly turning wheel; look for dropouts or jumps
- Perform a wiggle test of the steering column wiring and connectors while watching live data
- Visually inspect connectors for corrosion, bent pins, water ingress, or pinback
- Backprobe sensor connector to verify 5 V reference, ground, and signal with key ON
- Check CAN/LIN bus integrity and presence of SAS messages if the sensor communicates digitally
Signal parameters
- Supply/reference: typically 5 V reference (verify with vehicle-specific data)
- Signal types: may be analog voltage (approx. 0.5–4.5 V), dual Hall/AB quadrature outputs, or digital/CAN message depending on vehicle
- Common absolute angle ranges: up to ±360° or up to ±720° (varies by manufacturer)
- Typical resolution: 0.1° or finer (manufacturer-specific)
- If PWM/analog: expect smooth, continuous change in voltage with wheel rotation; intermittent drops to 0 V indicate loss of signal
Diagnostic algorithm
- Connect a capable scan tool and record present and pending codes and freeze-frame data. Note any ABS/ESP or network codes.
- Monitor SAS live data while performing slow full-range steering wheel rotation. Confirm expected continuous angle values and note any dropouts or sudden jumps.
- Visually inspect sensor connector and wiring for damage, corrosion, pin deformation, or water ingress. Repair as needed.
- With key ON (engine off), backprobe connector: verify proper 5 V reference, good ground, and a valid signal trace. Use a DMM and oscilloscope if available to detect intermittent faults.
- Perform a wiggle test on steering column harness, connector and steering angle sensor while watching live data or scope for intermittent changes.
- Check CAN/LIN bus voltage and message presence if the SAS is a network device. Repair bus faults before replacing sensor.
- If wiring and connectors test good, replace the SAS module/sensor per manufacturer procedure.
- After repair or replacement, perform required steering angle sensor calibration/initialization with a scan tool following vehicle-specific steps.
- Clear codes and perform a road test to confirm no recurrence and proper operation of ABS/ESP/power steering systems.
Likely causes
- Damaged or loose wiring/connectors in the steering column (most common)
- Intermittent SAS module/sensor failure
- Poor ground or intermittent 5 V reference to the sensor
Fault status
Similar codes
Brands with available manuals
The library contains 2,555 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.
C2003
Maximum retractions exceeded(PSB)
Causes
- Loose, corroded or damaged connector at the SAS
- Frayed or broken wiring in the steering column harness (intermittent open/short)
- Faulty steering angle sensor (internal electronics intermittent)
- Poor sensor ground or disturbed 5 V reference supply
- CAN/LIN communication errors between SAS module and ABS/ESP module
- Incorrect or lost sensor calibration (after battery disconnect/repair)
Symptoms
- Steering angle warning lamp or ABS/ESP warning lamp illuminated
- Intermittent or unavailable electronic power steering assist
- Traction control or stability control disabled or performing erratically
- Stored/secondary DTCs related to ABS, ESP, steering
- Inconsistent steering angle reading in live data (jumps, dropouts)
What to check
- Read all stored and freeze-frame codes with a scan tool; note accompanying ABS/ESP/U-codes
- Monitor steering angle live data while slowly turning wheel; look for dropouts or jumps
- Perform a wiggle test of the steering column wiring and connectors while watching live data
- Visually inspect connectors for corrosion, bent pins, water ingress, or pinback
- Backprobe sensor connector to verify 5 V reference, ground, and signal with key ON
- Check CAN/LIN bus integrity and presence of SAS messages if the sensor communicates digitally
Signal parameters
- Supply/reference: typically 5 V reference (verify with vehicle-specific data)
- Signal types: may be analog voltage (approx. 0.5–4.5 V), dual Hall/AB quadrature outputs, or digital/CAN message depending on vehicle
- Common absolute angle ranges: up to ±360° or up to ±720° (varies by manufacturer)
- Typical resolution: 0.1° or finer (manufacturer-specific)
- If PWM/analog: expect smooth, continuous change in voltage with wheel rotation; intermittent drops to 0 V indicate loss of signal
Diagnostic algorithm
- Connect a capable scan tool and record present and pending codes and freeze-frame data. Note any ABS/ESP or network codes.
- Monitor SAS live data while performing slow full-range steering wheel rotation. Confirm expected continuous angle values and note any dropouts or sudden jumps.
- Visually inspect sensor connector and wiring for damage, corrosion, pin deformation, or water ingress. Repair as needed.
- With key ON (engine off), backprobe connector: verify proper 5 V reference, good ground, and a valid signal trace. Use a DMM and oscilloscope if available to detect intermittent faults.
- Perform a wiggle test on steering column harness, connector and steering angle sensor while watching live data or scope for intermittent changes.
- Check CAN/LIN bus voltage and message presence if the SAS is a network device. Repair bus faults before replacing sensor.
- If wiring and connectors test good, replace the SAS module/sensor per manufacturer procedure.
- After repair or replacement, perform required steering angle sensor calibration/initialization with a scan tool following vehicle-specific steps.
- Clear codes and perform a road test to confirm no recurrence and proper operation of ABS/ESP/power steering systems.
Likely causes
- Damaged or loose wiring/connectors in the steering column (most common)
- Intermittent SAS module/sensor failure
- Poor ground or intermittent 5 V reference to the sensor
Fault status
Similar codes
Manual library for HYUNDAI
Browse 84 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
HYUNDAI
-
HYUNDAI: 2021
-
Accent
-
-
HYUNDAI: 2020
-
Palisade
-
Veloster N
C2003
Right Rear Wheel Speed Sensor Circuit Fault
Causes
- Loose, corroded or damaged connector at the SAS
- Frayed or broken wiring in the steering column harness (intermittent open/short)
- Faulty steering angle sensor (internal electronics intermittent)
- Poor sensor ground or disturbed 5 V reference supply
- CAN/LIN communication errors between SAS module and ABS/ESP module
- Incorrect or lost sensor calibration (after battery disconnect/repair)
Symptoms
- Steering angle warning lamp or ABS/ESP warning lamp illuminated
- Intermittent or unavailable electronic power steering assist
- Traction control or stability control disabled or performing erratically
- Stored/secondary DTCs related to ABS, ESP, steering
- Inconsistent steering angle reading in live data (jumps, dropouts)
What to check
- Read all stored and freeze-frame codes with a scan tool; note accompanying ABS/ESP/U-codes
- Monitor steering angle live data while slowly turning wheel; look for dropouts or jumps
- Perform a wiggle test of the steering column wiring and connectors while watching live data
- Visually inspect connectors for corrosion, bent pins, water ingress, or pinback
- Backprobe sensor connector to verify 5 V reference, ground, and signal with key ON
- Check CAN/LIN bus integrity and presence of SAS messages if the sensor communicates digitally
Signal parameters
- Supply/reference: typically 5 V reference (verify with vehicle-specific data)
- Signal types: may be analog voltage (approx. 0.5–4.5 V), dual Hall/AB quadrature outputs, or digital/CAN message depending on vehicle
- Common absolute angle ranges: up to ±360° or up to ±720° (varies by manufacturer)
- Typical resolution: 0.1° or finer (manufacturer-specific)
- If PWM/analog: expect smooth, continuous change in voltage with wheel rotation; intermittent drops to 0 V indicate loss of signal
Diagnostic algorithm
- Connect a capable scan tool and record present and pending codes and freeze-frame data. Note any ABS/ESP or network codes.
- Monitor SAS live data while performing slow full-range steering wheel rotation. Confirm expected continuous angle values and note any dropouts or sudden jumps.
- Visually inspect sensor connector and wiring for damage, corrosion, pin deformation, or water ingress. Repair as needed.
- With key ON (engine off), backprobe connector: verify proper 5 V reference, good ground, and a valid signal trace. Use a DMM and oscilloscope if available to detect intermittent faults.
- Perform a wiggle test on steering column harness, connector and steering angle sensor while watching live data or scope for intermittent changes.
- Check CAN/LIN bus voltage and message presence if the SAS is a network device. Repair bus faults before replacing sensor.
- If wiring and connectors test good, replace the SAS module/sensor per manufacturer procedure.
- After repair or replacement, perform required steering angle sensor calibration/initialization with a scan tool following vehicle-specific steps.
- Clear codes and perform a road test to confirm no recurrence and proper operation of ABS/ESP/power steering systems.
Likely causes
- Damaged or loose wiring/connectors in the steering column (most common)
- Intermittent SAS module/sensor failure
- Poor ground or intermittent 5 V reference to the sensor
Fault status
Similar codes
Manual library for LAND ROVER
Browse 160 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
LAND ROVER
-
LAND ROVER: 2023
-
Range Rover Velar
-
-
LAND ROVER: 2022
-
Discovery Sport
-
Range Rover
- Autobiography, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover Autobiography
- 2022 Range Rover Base
- First Edition
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover HSE Westminster
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover SE
- SE, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover SE
- SV
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic Blk.
-
Range Rover Evoque
-
Range Rover Sport
-
Range Rover Velar
-
LAND ROVER: 2021
-
Discovery Sport
-
Range Rover
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Autobiography
- Autobiography Fifty Edition
- 2021 Range Rover Base
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover HSE
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover HSE Westminster
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic Blk.
-
Range Rover Evoque
-
Range Rover Sport
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography Dynamic
- HSE Dynamic
- HSE Silver Edition, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Sport HSE Silver Edition
- HST
- SE
- SVR
- SVR Carbon Edition
-
Range Rover Velar
-
LAND ROVER: 2020
-
Discovery
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE
- HSE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE
- HSE Luxury, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE Luxury
- Landmark
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery SE
- SE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery SE
-
Discovery Sport
-
Range Rover
- Autobiography
- Base, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Base
- Base, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Base
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover HSE
- SVAutobiography
- SVAutobiography Dynamic
-
Range Rover Evoque
-
Range Rover Sport
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport Autobiography Dynamic
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport HSE
- HSE Dynamic
- HSE PHEV
- HST
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport SE
- SVR
-
Range Rover Velar
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Range Rover Velar R-Dynamic S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Range Rover Velar S
- S, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Range Rover Velar S
- SVAutobiography Dyn.
-
LAND ROVER: 2019
