What Does P0062 Mean?
The ECM has detected a general malfunction in the heater control circuit for the heated oxygen sensor (HO2S) at Bank 2, Sensor 3. The heater circuit is not performing as expected — the ECM cannot properly control the heater element, preventing the sensor from reaching operating temperature in the required time. The driver will primarily notice the check engine light; driveability is generally unaffected.
Common Causes
35%
Failed O2 sensor with internally shorted or open heater element
25%
Blown fuse or faulty relay in the O2 sensor heater power supply circuit
22%
Wiring fault — open, short, or high resistance in heater circuit
10%
ECM heater driver circuit failure
8%
Poor ground connection causing incomplete heater circuit
Diagnostic Steps
1
Check the O2 sensor heater fuse in the underhood fuse box. This fuse often powers multiple O2 sensor heaters, so check if other heater codes are also present.
2
Disconnect the Bank 2 Sensor 3 connector and measure heater element resistance. A reading of OL (open) or less than 1 ohm (shorted) indicates a failed sensor.
3
With the sensor disconnected, verify battery voltage on the heater power supply wire (key on engine off). Then check for proper ECM ground on the control wire by backprobing the ECM connector.
4
Inspect the complete wiring path from the underhood fuse box through any junction connectors to the sensor. Check for damage from exhaust heat, road debris, or rodent damage.
5
If wiring and sensor test good, the ECM heater driver may be at fault. Measure the control wire voltage at the ECM connector while commanding the heater on — it should pull to ground (near 0V).
Estimated Repair Cost
$80 - $350
Parts + labor, varies by vehicle and location
The ECM has detected a general malfunction in the heater control circuit for the heated oxygen sensor (HO2S) at Bank 2, Sensor 3. The heater circuit is not performing as expected — the ECM cannot properly control the heater element, preventing the sensor from reaching operating temperature in the re...
The most common cause of P0062 (HO2S Heater Control Circuit (Bank 2, Sensor 3)) is: Failed O2 sensor with internally shorted or open heater element
Typical repair costs for P0062 range from $80 to $350, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive. The O2 sensor will eventually reach operating temperature from exhaust heat but will take longer. Engine performance and fuel economy are minimally affected. This will cause a failed emissions test. Repair within a few weeks.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0062 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Emissions Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
