P0118 is a common OBDII trouble code. That is a basic code, which method that it’s walking to have actually the same an interpretation for the Chevy HHR together it would any type of other vehicle.

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P0118: Engine Coolant Temp Sensor Circuit → High Input

This password is thrown as soon as the resistance coming from the coolant temp sensor does not change as the car warms up.

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Chevy HHR P0118 Symptoms

P0118 is occasionally accompanied by noticeable symptoms. This symptoms incorporate failure to start, stormy idle, misfiring, reduced fuel economy, and also the service engine soon light.

It’s simply as likely that the only sign that you’ll gain from the HHR is the inspect engine irradiate itself.

As P0118 can greatly affect the drivability of her HHR, we recommend resolving it as shortly as possible.

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P0118 Causes: Chevy HHR

Most the the time, the reason of P0118 is going come be regarded the wiring or the sensor in some method or another.

Here’s a good video indigenous CarNToys from YouTube ~ above this specific problem.

Wiring Issue

It’s a great idea to begin diagnosing P0118 in her HHR at the wiring harness. It’s often the reason why the code was thrown. It’s additionally cheap and also easy come diagnose.

Start through inspecting whereby the exploit plugs right into the Temp Sensor. After that, inspect the harness because that wiring problems. Here’s a great guide ~ above inspecting her wiring harness.

The Sensor Itself

After thoroughly analyzing the wiring harness, it would certainly be time to take it a look at the sensor itself. The operates through receiving a 5 volt signal from the computer and a ground. It drops voltage as it warms up. If you’re not acquiring 5 volts, re-inspect the wiring harness.

If you have actually a volt meter, you can test the signal comes from it as the engine warms up. If it continues to be the same, 보다 the sensor is not functioning properly.

Replacing the sensor right away isn’t lot of a gamble. They’re an extremely affordable.

Other Causes

There can be other reasons of P0118 in your HHR. They typically aren’t walking to it is in as widespread though. A bad PCM can reason the the password to be triggered.

Engine coolant can reason the code to litter if it it s okay corroded enough. So, if you uncover yourself in a case where girlfriend can’t psychic the last time that the coolant has actually been changed, it may be worth a shot to just readjust it and see if you gain lucky.

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Conclusion

Most that the time, P0118 is going come be resulted in by a bad temperature sensor. Wiring problems are the next most most likely cause. Good luck diagnosing your HHR!

If over there is anything the you feel you could add to the article, please feel totally free to leave a comment below.