C0603 Trouble Code

View C0603 obd/2 error code description and symptoms. C0603 engine photo

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

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.

Difficulty Level (Expert)
Level
Repair Time (60 Min.)
Time
Cost Prediction : $ 80-120

C0603 Error Code Repair Process :

If your air bag passenger circuit short to battery - loop #2 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 C0603 and engine control unit are in charge of monitoring a bunch of different air bag passenger circuit short to battery - loop #2, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool C0603 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.

Common Causes of C0603

A common cause of code C0603 is the failure of Air Bag Passenger Circuit Short to Battery - Loop #2, but there are several other possible causes as well, such as ;

C0603 code for all cars

You can view according C0603 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C0603 Toyota 4runner +C0603 Tvr Trident +C0603 Adler 55 +C0603 Mercedes Cla 180 +C0603 Alpine Berlinette

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