P00D1

HO2S Heater Control Circuit Range/Performance Bank 1 Sensor 1

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Reduced engine efficiency
Increased fuel consumption
Unstable idle

Causes

Open or short circuit in the sensor wiring harness
Faulty oxygen sensor (DK1)
Problems with the relay or fuse of the heating circuit
ECU malfunction

How to Fix

Check the sensor wiring harness and connectors for damage.
Check the resistance and voltage on the heating circuit
Replace the oxygen sensor if necessary
Check heating circuit relays and fuses
Scan the system for additional errors

Related codes

P0030 P0031 P0032 P0130