Steering Angle Sensor Unit
NOTE: If a unit or component is likely to fail and the vehicle is still under manufacturer's warranty, refer to the warranty manual before replacing the component (section B1.2) or determine if there is any previously approved special program in operation.
NOTE: Universal Scan Tools may not read the listed codes or may only read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the 7-digit code listed to identify the problem (the last 2 digits give additional information read by the diagnostic system approved by the manufacturer).
NOTE: Always use a digital multimeter when performing voltage or resistance tests (DMM) accurate to three decimal places and with a valid calibration certificate. When testing resistance, be sure to consider the resistance of the DMM leads.
NOTE: Before starting diagnostic programs using troubleshooting tests, check and correct major problems.
NOTE: Inspect the connectors for signs of water intrusion and their pins for damage and (or) traces of corrosion.
NOTE: If DTCs are logged and there is no problem after performing troubleshooting tests, an intermittent problem may be the cause. Be sure to check for loose connections and corroded contacts.
Description and operation
For a detailed description of the anti-lock braking system / dynamic stabilization system, see the corresponding section of the manual «Description and operation» for service stations. For more information, please refer to the chapter: Anti-Lock Braking System - Heading Stability Function (206-09C Anti-Lock Braking System - Heading Stability Function, Description and Operation).
DTC | Description | Possible reason | Action |
U0001-00 | High Speed CAN Communication Bus Fault Information: No subtype information | Bus shutdown | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system. |
U0140-00 | General information about the malfunction - loss of communication with the central electronic unit: no information on the subtype | Loss of communication with the central junction box | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system. |
U0300-00 | General information about the fault - incompatibility of the software of the internal control unit: no information on the subtype | Perform a CAN network and power line test using the manufacturer approved diagnostic system. Make sure the correct steering wheel sensor is installed. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-04 | General information about the malfunction of the control unit: internal malfunctions of the system | Perform a CAN network and power line test using the manufacturer approved diagnostic system. Make sure the correct steering wheel sensor is installed. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-14 | Control unit - general electrical fault: short to ground or open circuit | Perform a power line test using the manufacturer approved diagnostic system. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-1D | Control unit - general electrical fault: current in the electrical circuit is out of range | Perform a power line test using the manufacturer approved diagnostic system. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-44 | Control unit - internal system malfunctions: data memory failure | Internal unit failure | Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. |
U3000-48 | Control unit - internal system malfunctions: control program malfunction | Internal unit failure | Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. |
U3000-49 | Control unit - internal system malfunctions: internal malfunction of the electronic equipment | Perform a power line test using the manufacturer approved diagnostic system. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-61 | Control unit - algorithm failures: signal calculation error | Check if the sensor is installed correctly. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-62 | Control unit - algorithm failures: signal matching error | Check if the sensor is installed correctly. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-64 | Control unit - algorithm failures: invalid signal | Check if the sensor is installed correctly. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-81 | Bus signal/message failure: data received that is not valid for serial transmission | Perform a CAN network and power line test using the manufacturer approved diagnostic system. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3000-87 | Bus signal/message failure: no message | Perform a CAN network and power line test using the manufacturer approved diagnostic system. Check CAN network for missing modules | |
U3000-92 | Control unit - component malfunctions: incorrect characteristic or operation | Check if the sensor is installed correctly. Install a new steering wheel sensor, refer to the new unit/component installation note at the beginning of the DTC index. | |
U3003-62 | Battery Voltage - Algorithm Failures: Signal Mapping Error | Battery voltage mismatch of 2 V or more between the central junction box and the steering wheel angle sensor module | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system. |
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