U0173

Symptoms

• The airbag light on the dashboard is on
• The passive safety system can be disabled
• The error is stored in the ECU memory
• Possible problems with diagnostics through the scanner
• In some cases there may be false alarms of the system

Causes

• Open or short circuit in sensor D circuit
• Malfunction of the sensor D itself
• Connector problems or contact corrosion
• Airbag module (SDM) malfunction
• Problems with the car's CAN bus

How to Fix

1. Carry out diagnostics with a scanner to accurately determine the problem
2. Check the integrity of the circuit and connectors of sensor D
3. Inspect sensor D for mechanical damage
4. Check the sensor resistance and compare with the standards
5. Repair only from an authorized dealer

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