c1156 speed wheel sensor communication circuit
C1156 Speed Wheel Sensor Communication Circuit
OBD2 Code: C1156
Description: Speed Wheel Sensor Communication Circuit
Definition: This code indicates a malfunction in the communication circuit of the wheel speed sensor, which is responsible for transmitting data from the wheel speed sensors to the vehicle’s electronic control unit (ECU). This can affect systems such as ABS and traction control.
C1156 – Speed Wheel Sensor Communication Circuit
Typical Severity: Moderate
Common Causes
C1156 – Speed Wheel Sensor Communication Circuit
Common Causes:
- Faulty wheel speed sensor
- Corroded or damaged wiring/connectors in the communication circuit
- Interference from other electronic components
- Defective ABS module
Common Misdiagnosis
OBD2 Code: C1156
Description: Speed Wheel Sensor Communication Circuit
Common Misdiagnosis: Often misdiagnosed as a faulty wheel speed sensor when the issue may actually be due to damaged wiring or poor connections in the communication circuit.
Common Diagnostic Steps
OBD2 Code: C1156
Description: Speed Wheel Sensor Communication Circuit
Common Diagnostic Steps:
- Inspect the wheel speed sensor wiring and connectors for damage or corrosion.
- Check the wheel speed sensor itself for any signs of physical damage.
- Use a multimeter to test the resistance and voltage at the wheel speed sensor connector.
- Verify that there is no debris or dirt obstructing the sensor or its mounting area.
- Examine the ABS module for any additional fault codes that may indicate related issues.
- Test drive the vehicle while monitoring live data from the wheel speed sensors using an OBD2 scanner to ensure proper operation.
- If necessary, replace any faulty components identified during testing.