Low severity
P0074Intermittent signal from the external temperature sensor (Circuit A)
Part
External temperature sensor
Part price
$10
At a workshop
$35
You save
$25
How to read code P0074
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
74
Fault number
Specific fault within the subsystem
Symptoms
- Temperature gauge fluctuates
- Occasional engine misfire
- Strange fuel system behavior
Possible causes
- Loose connection in the plug
- Broken wire in the harness near the bumper
- Damaged sensor terminal ring
Diagnostic steps
- 1Move the wire bundle and observe parameters in the computer
- 2Tap the pins in the plug
- 3Replace the sensor if the old one has a cracked housing
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Frequently asked questions about P0074
What does code P0074 mean?
P0074: Intermittent signal from the external temperature sensor (Circuit A).
What are the symptoms of code P0074?
Temperature gauge fluctuates; Occasional engine misfire; Strange fuel system behavior.
What causes code P0074?
Loose connection in the plug; Broken wire in the harness near the bumper; Damaged sensor terminal ring.
Can I drive with code P0074?
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 P0074?
The part (External temperature sensor) costs about $10, and a mechanic’s labour about $25.
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