Medium severity
P0052High circuit voltage in the heater circuit of the O2 sensor (Bank 2, Sensor 1)
Part
O2 sensor
Part price
$63
At a workshop
$88
You save
$25
How to read code P0052
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
52
Fault number
Specific fault within the subsystem
Symptoms
- Check Engine light is on
- Increased fuel consumption on cold start
- Stored diagnostic trouble code in the ECM
Possible causes
- Heater element failure in the O2 sensor
- Short to positive in the electrical system
- Engine control module damage
Diagnostic steps
- 1Use a multimeter to check the resistance of the O2 sensor heater
- 2Inspect the connector and wiring harness for damage
- 3Check the power and signal connections at the O2 sensor connector after ignition
Ad space
Frequently asked questions about P0052
What does code P0052 mean?
P0052: High circuit voltage in the heater circuit of the O2 sensor (Bank 2, Sensor 1).
What are the symptoms of code P0052?
Check Engine light is on; Increased fuel consumption on cold start; Stored diagnostic trouble code in the ECM.
What causes code P0052?
Heater element failure in the O2 sensor; Short to positive in the electrical system; Engine control module damage.
Can I drive with code P0052?
SAFE TO DRIVE – The fault does not immobilise the car, but diagnose it as soon as possible.
How much does it cost to fix code P0052?
The part (O2 sensor) costs about $63, and a mechanic’s labour about $25.
Ad space