C0138 Chevrolet Lacetti OBD Code

OBD/2 C0138 error code description and symptoms.

The issue covered by the bulletin involves a power steering noise/whine or fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C0138 Chevrolet Lacetti Error Code Repair Process :

For wiper rear low limit input circuit short to battery check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. C0138 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks wiper rear low limit input circuit short to battery with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Chevrolet Lacetti C0138 OBD2 Code

A common cause of code C0138 is the failure of Wiper Rear Low Limit Input Circuit Short To Battery, but there are several other possible causes as well, such as ;

Exhaust gas leaks
Erratic camshaft position due to low oil pressure
Faulty variable valve timing (VVT)
Exhaust tube

C0138 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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C0138 Chevrolet Lacetti OBD Code

C0138 Chevrolet Lacetti Error Code Repair Process :

Common Causes of Chevrolet Lacetti C0138 OBD2 Code

C0138 code for other Chevrolet cars