Code
U1305
PEUGEOT
U — Network/User
Fault: absence of communication with the steering wheel angle sensor: No signal
Views:
UK: 0
EN: 1
RU: 2
AI status
Completed
Completed
100%
Causes
- Damaged or disconnected connector at the steering angle sensor
- Broken wiring or chafe in the steering column harness (including through the clock spring/spiral cable)
- Faulty steering angle sensor
- Faulty or missing communication on CAN/LIN/vehicle network (bus fault)
- Blown fuse or poor power/ground to the sensor
- Faulty receiving control module or software/firmware fault
Symptoms
- ABS/ESC/ESP warning lamp illuminated
- Loss of stability control or traction control function
- Steering angle not displayed or incorrect in diagnostic tool
- Possible degraded steering-related safety functions
- DTCs related to communication bus or other modules present
What to check
- Read all stored and pending DTCs from all network modules and note freeze-frame data
- Verify battery voltage >= 12.4 V during testing (stable supply)
- Scan for presence of steering angle sensor data (raw angle, status) with a capable scan tool
- Inspect steering column area: connectors, wiring harness, clock spring/spiral cable for damage or loose pins
- Check for related CAN/LIN communication errors and other U-codes present
- Visually inspect sensor connector for corrosion, bent pins or water ingress
Signal parameters
- Typical sensor supply: +5 V reference (verify with OEM data)
- Ground: 0 V chassis ground
- Analog output (typical): 0.5–4.5 V varying with wheel angle OR digital/CAN message containing angle (vehicle dependent)
- CAN bus nominal voltage: ~2.5 V per line, differential signalling when active — verify CAN_H/CAN_L levels with a scope or CAN tester
- Sensor should report changing angle values when steering wheel is rotated (monitor with scan tool)
Diagnostic algorithm
- Use a professional scan tool to confirm U1305 and list other network DTCs. Note timestamps and freeze-frame data.
- Verify vehicle battery and power supply stability. Recheck DTC after battery/voltage confirmed good.
- Inspect external wiring and connectors at the steering column and sensor for damage, corrosion or loose pins. Repair or reconnect as required.
- Check fuses and ground points related to steering/airbag and sensor power circuits. Restore any poor connections.
- With ignition on, monitor sensor power, ground and signal with a multimeter or scope (observe expected reference voltage and that signal changes when wheel turned). If the sensor uses CAN, monitor CAN traffic and confirm sensor/module messages appear.
- Wiggle test wiring from sensor back to control module while observing live data or error occurrence to find intermittent faults. Avoid prolonged steering movement if airbag harness is exposed.
- If wiring and network are good but no sensor data, replace the steering angle sensor (or clock spring if wiring through it is damaged).
- After repair or replacement, clear codes and perform required steering angle sensor calibration/learning procedure using the scan tool per manufacturer instructions.
- If communication still absent, test/replace the receiving control module or consult OEM network wiring diagrams and module diagnostics. Consider software updates if recommended.
- Safety note: follow vehicle manufacturer procedures when working near SRS/airbag hardware and disconnect battery per OEM before removing or handling airbag components.
Likely causes
- Open or intermittent wiring through the clock spring
- Failed steering angle sensor in the steering column
- CAN bus wiring fault or module not responding
- Poor ground or supply to the sensor (fuse, connector, pin corrosion)
Fault status
Status
No signal/communication received from steering wheel angle sensor — sensor not detected on vehicle network or signal line inactive.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email