P04D0

EGR Temperature Sensor C Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–111 (est.)

Symptoms

Increased fuel consumption
Unstable idling
Power Loss
Check Engine Light Illuminates

Causes

Open or short circuit in the sensor wiring harness
Poor contact in the sensor connector
EGR temperature sensor malfunction
Problems with the engine control unit

How to Fix

Check the integrity of the wiring harness and contacts in the sensor connector
Measure the resistance of the EGR temperature sensor (compare with the nominal value)
Check the voltage at the sensor connector
Replace EGR temperature sensor if necessary
Reset error and test drive

Related codes

P0401 P0402 P0403 P0404