U069C

Symptoms

• The Check Engine light on the dashboard comes on
• Possible reduction in engine power
• Deteriorating fuel economy
• Unstable engine operation at idle
• Errors related to exhaust gas treatment systems

Causes

• Open or short circuit in the sensor circuit
• Malfunction of the exhaust gas temperature sensor itself
• Problems with the sensor connector (oxidation, damage)
• Malfunction of the engine control unit (rare)
• Wiring harness damage

How to Fix

1. Check the integrity of the wiring to the sensor
2. Check the sensor connector for damage or oxidation
3. Check sensor resistance (compare with manufacturer specifications)
4. If necessary, replace the exhaust gas temperature sensor
5. Check for ECU firmware updates

Related codes

Error U069C by Vehicle Brand