C3470 Trouble Code

View C3470 obd/2 error code description and symptoms. C3470 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.

C3470 Error Code Repair Process :

If your aux heater glow plug circuit open 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 C3470 and engine control unit are in charge of monitoring a bunch of different aux heater glow plug circuit open, and if they get a reading that's a little out of whack, up pops the check engine light.

C3470 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 C3470

A common cause of code C3470 is the failure of Aux Heater Glow Plug Circuit Open, but there are several other possible causes as well, such as ;

Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Clogged or faulty fuel injector (s)
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Faulty Air Flow Meter

C3470 code for all cars

You can view according C3470 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3470 Mercedes B 170

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

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