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U1042 Engine Trouble Code

Meaning of U1042 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.

U1042 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U1042 code is occuring now you should check U1042 repair processes.
Now don't ask yourself; What should you do with U1042 code ?
The solution is here :

U1042 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.

U1042 Code Meaning :

U	1	0	4	2
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering	Ambient Air Temperature Sensor Circuit Low	Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)	Glow Plug/Heater Circuit 'A' 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.

U1042 OBD-II Diagnostic Network (U) Trouble Code Description

U1042 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Main reason For U1042 Code

The reason of U1042 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

U1042 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

	Example: 0140