U1478 Engine Trouble Code
Meaning of U1478 engine trouble code is a kind of network trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
U1478 Fault Symptoms :
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If one of these reasons for U1478 code is occuring now you should check U1478 repair processes.
Now don't ask yourself; What should you do with U1478 code ? The solution is here : |
U1478 Possible Solution:
Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged. |
U1478 Code Meaning :
U | 1 | 4 | 7 | 8 |
---|---|---|---|---|
OBD-II Diagnostic Network (U) Trouble Code For Engine | Fuel And Air Metering | O2 Sensor Heater Circuit Malfunction | Cylinder 10 Contribution/balance Fault | Clutch Position Sensor Circuit Malfunction |
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
U1478 OBD-II Diagnostic Network (U) Trouble Code DescriptionU1478 engine trouble code is about Clutch Position Sensor Circuit Malfunction.Main reason For U1478 CodeThe reason of U1478 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction. |
U1478 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.