C3378 SPA 25+hp OBD Code

OBD/2 C3378 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

A good starting point in your diagnosis is checking all system fuses and fusible links. This can be done using the DVOM on the voltage setting. You will want to test the fuses with circuits loaded. Some fuses will appear normal until a load is placed on their respective circuit; at which point they will fail. This has been the cause of many 'phantom malfunctions'. Consult your vehicle information source for fuse and fusible link locations. If all fuses are in working order, you may want to check TCM relay operation by swapping identical relays. Usually the horn relay, starter relay, fuel pump relay, air conditioning clutch relay, and controller relays are similar enough in design to swap for diagnostic purposes.

C3378 SPA 25+hp Error Code Repair Process :

If your mirror driver memory position error check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C3378 and engine control unit are in charge of monitoring a bunch of different mirror driver memory position error, and if they get a reading that's a little out of whack, up pops the check engine light.

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Cost Prediction : $ 80-120

Common Causes of SPA 25+hp C3378 OBD2 Code

A common cause of code C3378 is the failure of Mirror Driver Memory Position Error, but there are several other possible causes as well, such as ;
Wrench Tool C3378 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.

C3378 code for other SPA cars

You can view according C3378 DTC for your car model. We selected several models to see obd2 solutions click and view it.

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