Code
U1205
CITROEN
U — Network/User
Fault in the information received by the steering wheel angle sensor over the CAN network: Value received incorrect
Views:
UK: 3
EN: 4
RU: 6
AI status
Completed
Completed
100%
Causes
- Faulty steering wheel angle sensor (SAS) or steering angle module
- Intermittent or broken wiring/connectors between sensor and network (corrosion, pin damage)
- Physical damage or water ingress at the steering column harness
- CAN bus fault (short to Vbat/ground, high resistance, improper termination)
- Power supply or ground fault to the sensor or steering module
- Software/firmware error or missing calibration in one of the control units
Symptoms
- ESP/ABS/Traction control warning lamp illuminated
- Steering assistance or stability control reduced/disabled messages
- Steering angle value reading is erratic, frozen or out-of-range on diagnostic tool
- Unexpected behavior of stability/traction systems during turns
- Occasional or permanent loss of features that depend on steering angle data
What to check
- Read and record all stored U and B codes from all control modules (ABS, ESP, EPS, BCM, instrument cluster)
- Check live data: monitor steering wheel angle while turning the wheel slowly — verify value changes smoothly and returns to zero
- Check for related sensor data (yaw rate, wheel speeds) and compare trends to steering angle
- Visually inspect wiring and connectors at the steering column and CAN junctions for corrosion, damage, water ingress or loose pins
- Measure CAN bus idle voltages: CAN_H ~2.5V, CAN_L ~2.5V and differential when active (dominant) — look for shorts
- Verify sensor/module supply voltage and ground at the connector with key on
Signal parameters
- Signal type: digital — CAN bus message carrying steering angle (degrees)
- Typical steering angle range: approx. ±540° (manufacturer-specific) — values should change smoothly with wheel rotation
- Message update rate: typically tens to a few hundred Hz (depends on vehicle)
- CAN bus voltages: recessive ~2.5V on CAN_H and CAN_L; dominant ≈ CAN_H 3.5V / CAN_L 1.5V (measure with scope or multimeter for gross faults)
- Fault conditions: out-of-range angle, sudden jumps, frozen value, or inconsistent packet timing/ID
Diagnostic algorithm
- Retrieve and document all DTCs and freeze-frame data from ABS/ESP/EPS and gateway modules. Note when code sets and any accompanying codes.
- Inspect steering column connectors and harness for damage, corrosion or water ingress. Repair any visible faults.
- With a diagnostic tool, monitor live steering angle while slowly rotating the wheel end‑to‑end. Confirm if the value is smooth and returns to center. If value is incorrect, proceed to step 4.
- Check power and ground at the steering angle sensor/module connector (key on). Repair poor supply/ground as needed.
- Check CAN bus health: measure CAN_H and CAN_L voltages with ignition on; if available use an oscilloscope to verify correct waveform and message presence. Look for missing messages or noise.
- Perform a wiggle test of harness while monitoring live data to find intermittent opens/shorts.
- If wiring and power/ground are good, try communicating directly with the steering angle module. If it does not respond or sends invalid data, consider module replacement or reprogramming.
- If a sensor/module is replaced, perform the required steering angle sensor calibration and EEPROM/programming per manufacturer procedure.
- After repairs/calibration, clear codes and confirm proper operation on-road and that the steering angle and related stability systems behave correctly.
- If problems persist, escalate to module-level diagnostics (capture bus traffic, compare against a good vehicle, contact technical support).
Likely causes
- Steering angle sensor failure inside the steering column
- Corroded/loose connector at the sensor or column junction block
- Low battery or poor ground causing corrupted CAN messages
- CAN high/low wiring shorted or open between sensor and network
- Module software mismatch or required calibration not performed after replacement
Fault status
Status
Invalid or inconsistent steering wheel angle data received over CAN; communication or sensor fault detected.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
U1205
DS
U — Network/User
Fault in the information received by the steering wheel angle sensor over the CAN network: Value received incorrect
Views:
UK: 2
EN: 2
RU: 3
AI status
Completed
Completed
100%
Causes
- Faulty steering wheel angle sensor (SAS) or steering angle module
- Intermittent or broken wiring/connectors between sensor and network (corrosion, pin damage)
- Physical damage or water ingress at the steering column harness
- CAN bus fault (short to Vbat/ground, high resistance, improper termination)
- Power supply or ground fault to the sensor or steering module
- Software/firmware error or missing calibration in one of the control units
Symptoms
- ESP/ABS/Traction control warning lamp illuminated
- Steering assistance or stability control reduced/disabled messages
- Steering angle value reading is erratic, frozen or out-of-range on diagnostic tool
- Unexpected behavior of stability/traction systems during turns
- Occasional or permanent loss of features that depend on steering angle data
What to check
- Read and record all stored U and B codes from all control modules (ABS, ESP, EPS, BCM, instrument cluster)
- Check live data: monitor steering wheel angle while turning the wheel slowly — verify value changes smoothly and returns to zero
- Check for related sensor data (yaw rate, wheel speeds) and compare trends to steering angle
- Visually inspect wiring and connectors at the steering column and CAN junctions for corrosion, damage, water ingress or loose pins
- Measure CAN bus idle voltages: CAN_H ~2.5V, CAN_L ~2.5V and differential when active (dominant) — look for shorts
- Verify sensor/module supply voltage and ground at the connector with key on
Signal parameters
- Signal type: digital — CAN bus message carrying steering angle (degrees)
- Typical steering angle range: approx. ±540° (manufacturer-specific) — values should change smoothly with wheel rotation
- Message update rate: typically tens to a few hundred Hz (depends on vehicle)
- CAN bus voltages: recessive ~2.5V on CAN_H and CAN_L; dominant ≈ CAN_H 3.5V / CAN_L 1.5V (measure with scope or multimeter for gross faults)
- Fault conditions: out-of-range angle, sudden jumps, frozen value, or inconsistent packet timing/ID
Diagnostic algorithm
- Retrieve and document all DTCs and freeze-frame data from ABS/ESP/EPS and gateway modules. Note when code sets and any accompanying codes.
- Inspect steering column connectors and harness for damage, corrosion or water ingress. Repair any visible faults.
- With a diagnostic tool, monitor live steering angle while slowly rotating the wheel end‑to‑end. Confirm if the value is smooth and returns to center. If value is incorrect, proceed to step 4.
- Check power and ground at the steering angle sensor/module connector (key on). Repair poor supply/ground as needed.
- Check CAN bus health: measure CAN_H and CAN_L voltages with ignition on; if available use an oscilloscope to verify correct waveform and message presence. Look for missing messages or noise.
- Perform a wiggle test of harness while monitoring live data to find intermittent opens/shorts.
- If wiring and power/ground are good, try communicating directly with the steering angle module. If it does not respond or sends invalid data, consider module replacement or reprogramming.
- If a sensor/module is replaced, perform the required steering angle sensor calibration and EEPROM/programming per manufacturer procedure.
- After repairs/calibration, clear codes and confirm proper operation on-road and that the steering angle and related stability systems behave correctly.
- If problems persist, escalate to module-level diagnostics (capture bus traffic, compare against a good vehicle, contact technical support).
Likely causes
- Steering angle sensor failure inside the steering column
- Corroded/loose connector at the sensor or column junction block
- Low battery or poor ground causing corrupted CAN messages
- CAN high/low wiring shorted or open between sensor and network
- Module software mismatch or required calibration not performed after replacement
Fault status
Status
Invalid or inconsistent steering wheel angle data received over CAN; communication or sensor fault detected.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
U1205
MITSUBISHI
U — Network/User
Yaw rate/G message counter error
Views:
UK: 13
EN: 19
RU: 18
AI status
Completed
Completed
100%
Causes
- Faulty steering wheel angle sensor (SAS) or steering angle module
- Intermittent or broken wiring/connectors between sensor and network (corrosion, pin damage)
- Physical damage or water ingress at the steering column harness
- CAN bus fault (short to Vbat/ground, high resistance, improper termination)
- Power supply or ground fault to the sensor or steering module
- Software/firmware error or missing calibration in one of the control units
Symptoms
- ESP/ABS/Traction control warning lamp illuminated
- Steering assistance or stability control reduced/disabled messages
- Steering angle value reading is erratic, frozen or out-of-range on diagnostic tool
- Unexpected behavior of stability/traction systems during turns
- Occasional or permanent loss of features that depend on steering angle data
What to check
- Read and record all stored U and B codes from all control modules (ABS, ESP, EPS, BCM, instrument cluster)
- Check live data: monitor steering wheel angle while turning the wheel slowly — verify value changes smoothly and returns to zero
- Check for related sensor data (yaw rate, wheel speeds) and compare trends to steering angle
- Visually inspect wiring and connectors at the steering column and CAN junctions for corrosion, damage, water ingress or loose pins
- Measure CAN bus idle voltages: CAN_H ~2.5V, CAN_L ~2.5V and differential when active (dominant) — look for shorts
- Verify sensor/module supply voltage and ground at the connector with key on
Signal parameters
- Signal type: digital — CAN bus message carrying steering angle (degrees)
- Typical steering angle range: approx. ±540° (manufacturer-specific) — values should change smoothly with wheel rotation
- Message update rate: typically tens to a few hundred Hz (depends on vehicle)
- CAN bus voltages: recessive ~2.5V on CAN_H and CAN_L; dominant ≈ CAN_H 3.5V / CAN_L 1.5V (measure with scope or multimeter for gross faults)
- Fault conditions: out-of-range angle, sudden jumps, frozen value, or inconsistent packet timing/ID
Diagnostic algorithm
- Retrieve and document all DTCs and freeze-frame data from ABS/ESP/EPS and gateway modules. Note when code sets and any accompanying codes.
- Inspect steering column connectors and harness for damage, corrosion or water ingress. Repair any visible faults.
- With a diagnostic tool, monitor live steering angle while slowly rotating the wheel end‑to‑end. Confirm if the value is smooth and returns to center. If value is incorrect, proceed to step 4.
- Check power and ground at the steering angle sensor/module connector (key on). Repair poor supply/ground as needed.
- Check CAN bus health: measure CAN_H and CAN_L voltages with ignition on; if available use an oscilloscope to verify correct waveform and message presence. Look for missing messages or noise.
- Perform a wiggle test of harness while monitoring live data to find intermittent opens/shorts.
- If wiring and power/ground are good, try communicating directly with the steering angle module. If it does not respond or sends invalid data, consider module replacement or reprogramming.
- If a sensor/module is replaced, perform the required steering angle sensor calibration and EEPROM/programming per manufacturer procedure.
- After repairs/calibration, clear codes and confirm proper operation on-road and that the steering angle and related stability systems behave correctly.
- If problems persist, escalate to module-level diagnostics (capture bus traffic, compare against a good vehicle, contact technical support).
Likely causes
- Steering angle sensor failure inside the steering column
- Corroded/loose connector at the sensor or column junction block
- Low battery or poor ground causing corrupted CAN messages
- CAN high/low wiring shorted or open between sensor and network
- Module software mismatch or required calibration not performed after replacement
Fault status
Status
Invalid or inconsistent steering wheel angle data received over CAN; communication or sensor fault detected.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
U1205
Other
U — Network/User
SCP (J1850) Invalid or Missing Data for Steering Column
Views:
UK: 19
EN: 19
RU: 23
AI status
Completed
Completed
100%
Causes
- Faulty steering wheel angle sensor (SAS) or steering angle module
- Intermittent or broken wiring/connectors between sensor and network (corrosion, pin damage)
- Physical damage or water ingress at the steering column harness
- CAN bus fault (short to Vbat/ground, high resistance, improper termination)
- Power supply or ground fault to the sensor or steering module
- Software/firmware error or missing calibration in one of the control units
Symptoms
- ESP/ABS/Traction control warning lamp illuminated
- Steering assistance or stability control reduced/disabled messages
- Steering angle value reading is erratic, frozen or out-of-range on diagnostic tool
- Unexpected behavior of stability/traction systems during turns
- Occasional or permanent loss of features that depend on steering angle data
What to check
- Read and record all stored U and B codes from all control modules (ABS, ESP, EPS, BCM, instrument cluster)
- Check live data: monitor steering wheel angle while turning the wheel slowly — verify value changes smoothly and returns to zero
- Check for related sensor data (yaw rate, wheel speeds) and compare trends to steering angle
- Visually inspect wiring and connectors at the steering column and CAN junctions for corrosion, damage, water ingress or loose pins
- Measure CAN bus idle voltages: CAN_H ~2.5V, CAN_L ~2.5V and differential when active (dominant) — look for shorts
- Verify sensor/module supply voltage and ground at the connector with key on
Signal parameters
- Signal type: digital — CAN bus message carrying steering angle (degrees)
- Typical steering angle range: approx. ±540° (manufacturer-specific) — values should change smoothly with wheel rotation
- Message update rate: typically tens to a few hundred Hz (depends on vehicle)
- CAN bus voltages: recessive ~2.5V on CAN_H and CAN_L; dominant ≈ CAN_H 3.5V / CAN_L 1.5V (measure with scope or multimeter for gross faults)
- Fault conditions: out-of-range angle, sudden jumps, frozen value, or inconsistent packet timing/ID
Diagnostic algorithm
- Retrieve and document all DTCs and freeze-frame data from ABS/ESP/EPS and gateway modules. Note when code sets and any accompanying codes.
- Inspect steering column connectors and harness for damage, corrosion or water ingress. Repair any visible faults.
- With a diagnostic tool, monitor live steering angle while slowly rotating the wheel end‑to‑end. Confirm if the value is smooth and returns to center. If value is incorrect, proceed to step 4.
- Check power and ground at the steering angle sensor/module connector (key on). Repair poor supply/ground as needed.
- Check CAN bus health: measure CAN_H and CAN_L voltages with ignition on; if available use an oscilloscope to verify correct waveform and message presence. Look for missing messages or noise.
- Perform a wiggle test of harness while monitoring live data to find intermittent opens/shorts.
- If wiring and power/ground are good, try communicating directly with the steering angle module. If it does not respond or sends invalid data, consider module replacement or reprogramming.
- If a sensor/module is replaced, perform the required steering angle sensor calibration and EEPROM/programming per manufacturer procedure.
- After repairs/calibration, clear codes and confirm proper operation on-road and that the steering angle and related stability systems behave correctly.
- If problems persist, escalate to module-level diagnostics (capture bus traffic, compare against a good vehicle, contact technical support).
Likely causes
- Steering angle sensor failure inside the steering column
- Corroded/loose connector at the sensor or column junction block
- Low battery or poor ground causing corrupted CAN messages
- CAN high/low wiring shorted or open between sensor and network
- Module software mismatch or required calibration not performed after replacement
Fault status
Status
Invalid or inconsistent steering wheel angle data received over CAN; communication or sensor fault detected.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
Similar codes
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+100 karma for a short comment :)
Was this AI description helpful?
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Send to email
Code
U1205
PEUGEOT
U — Network/User
Fault in the information received by the steering wheel angle sensor over the CAN network: Value received incorrect
Views:
UK: 2
EN: 5
RU: 3
AI status
Completed
Completed
100%
Causes
- Faulty steering wheel angle sensor (SAS) or steering angle module
- Intermittent or broken wiring/connectors between sensor and network (corrosion, pin damage)
- Physical damage or water ingress at the steering column harness
- CAN bus fault (short to Vbat/ground, high resistance, improper termination)
- Power supply or ground fault to the sensor or steering module
- Software/firmware error or missing calibration in one of the control units
Symptoms
- ESP/ABS/Traction control warning lamp illuminated
- Steering assistance or stability control reduced/disabled messages
- Steering angle value reading is erratic, frozen or out-of-range on diagnostic tool
- Unexpected behavior of stability/traction systems during turns
- Occasional or permanent loss of features that depend on steering angle data
What to check
- Read and record all stored U and B codes from all control modules (ABS, ESP, EPS, BCM, instrument cluster)
- Check live data: monitor steering wheel angle while turning the wheel slowly — verify value changes smoothly and returns to zero
- Check for related sensor data (yaw rate, wheel speeds) and compare trends to steering angle
- Visually inspect wiring and connectors at the steering column and CAN junctions for corrosion, damage, water ingress or loose pins
- Measure CAN bus idle voltages: CAN_H ~2.5V, CAN_L ~2.5V and differential when active (dominant) — look for shorts
- Verify sensor/module supply voltage and ground at the connector with key on
Signal parameters
- Signal type: digital — CAN bus message carrying steering angle (degrees)
- Typical steering angle range: approx. ±540° (manufacturer-specific) — values should change smoothly with wheel rotation
- Message update rate: typically tens to a few hundred Hz (depends on vehicle)
- CAN bus voltages: recessive ~2.5V on CAN_H and CAN_L; dominant ≈ CAN_H 3.5V / CAN_L 1.5V (measure with scope or multimeter for gross faults)
- Fault conditions: out-of-range angle, sudden jumps, frozen value, or inconsistent packet timing/ID
Diagnostic algorithm
- Retrieve and document all DTCs and freeze-frame data from ABS/ESP/EPS and gateway modules. Note when code sets and any accompanying codes.
- Inspect steering column connectors and harness for damage, corrosion or water ingress. Repair any visible faults.
- With a diagnostic tool, monitor live steering angle while slowly rotating the wheel end‑to‑end. Confirm if the value is smooth and returns to center. If value is incorrect, proceed to step 4.
- Check power and ground at the steering angle sensor/module connector (key on). Repair poor supply/ground as needed.
- Check CAN bus health: measure CAN_H and CAN_L voltages with ignition on; if available use an oscilloscope to verify correct waveform and message presence. Look for missing messages or noise.
- Perform a wiggle test of harness while monitoring live data to find intermittent opens/shorts.
- If wiring and power/ground are good, try communicating directly with the steering angle module. If it does not respond or sends invalid data, consider module replacement or reprogramming.
- If a sensor/module is replaced, perform the required steering angle sensor calibration and EEPROM/programming per manufacturer procedure.
- After repairs/calibration, clear codes and confirm proper operation on-road and that the steering angle and related stability systems behave correctly.
- If problems persist, escalate to module-level diagnostics (capture bus traffic, compare against a good vehicle, contact technical support).
Likely causes
- Steering angle sensor failure inside the steering column
- Corroded/loose connector at the sensor or column junction block
- Low battery or poor ground causing corrupted CAN messages
- CAN high/low wiring shorted or open between sensor and network
- Module software mismatch or required calibration not performed after replacement
Fault status
Status
Invalid or inconsistent steering wheel angle data received over CAN; communication or sensor fault detected.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
Similar codes
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Was this AI description helpful?
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