Low severity
P0030Lambda Sensor Heater Circuit Fault (Bank 1, Sensor 1)
Part
Lambda Sensor
Part price
$75
At a workshop
$100
You save
$25
How to read code P0030
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
30
Fault number
Specific fault within the subsystem
Symptoms
- Check Engine light is on
- Slightly higher fuel consumption on a cold engine
- No noticeable symptoms during driving
Possible causes
- Heater element in the lambda sensor is burnt out
- Heater circuit wire is broken
- Heater circuit sensor is damaged
Diagnostic steps
- 1Check the heater circuit fuse related to the sensor
- 2Measure the resistance of the heater element at the sensor connector
- 3Check for 12V presence after ignition switch is turned on
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Frequently asked questions about P0030
What does code P0030 mean?
P0030: Lambda Sensor Heater Circuit Fault (Bank 1, Sensor 1).
What are the symptoms of code P0030?
Check Engine light is on; Slightly higher fuel consumption on a cold engine; No noticeable symptoms during driving.
What causes code P0030?
Heater element in the lambda sensor is burnt out; Heater circuit wire is broken; Heater circuit sensor is damaged.
Can I drive with code P0030?
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 P0030?
The part (Lambda Sensor) costs about $75, and a mechanic’s labour about $25.
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