P0167

O2 Sensor Heater Circuit Bank 2 Sensor 3

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Check Engine Light Is On
Decrease in catalyst efficiency
Difficult cold start
Slight degradation in fuel economy

Causes

Heater circuit open
Short circuit in the circuit
Oxygen sensor malfunction
Poor connections in the wiring harness
Problems with the relay or circuit fuse

How to Fix

Check the condition of the heater circuit fuse and relay
Inspect the wiring harness for damage
Check sensor heater resistance
Check power and ground circuit
Replace the oxygen sensor if necessary
Clear the error and check the system operation

Related codes

P0141 P0157 P0161