Medium severity
P0056Lambda Sensor Heater Circuit Fault (Bank 2, Sensor 2)
Part
Lambda sensor
Part price
$55
At a workshop
$80
You save
$25
How to read code P0056
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
56
Fault number
Specific fault within the subsystem
Symptoms
- Check Engine light is on
- Exhaust system heating up takes longer than normal
- Slight increase in fuel consumption
Possible causes
- Heater circuit interruption
- Heater circuit fuse blown
- Failed lambda sensor
Diagnostic steps
- 1Check the fuses responsible for heating the sensor
- 2Check the ECU for mass airflow data
- 3Replace the faulty sensor
Ad space
Frequently asked questions about P0056
What does code P0056 mean?
P0056: Lambda Sensor Heater Circuit Fault (Bank 2, Sensor 2).
What are the symptoms of code P0056?
Check Engine light is on; Exhaust system heating up takes longer than normal; Slight increase in fuel consumption.
What causes code P0056?
Heater circuit interruption; Heater circuit fuse blown; Failed lambda sensor.
Can I drive with code P0056?
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 P0056?
The part (Lambda sensor) costs about $55, and a mechanic’s labour about $25.
Ad space