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U1078 Engine Trouble Code

Meaning of U1078 engine trouble code is : When your car's 'U1078 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

U1078 Possible Solution:

U1078 Engine

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.

U1078 Code Meaning :

U 1 0 7 8
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering Ambient Air Temperature Sensor Circuit Low Cylinder 10 Contribution/balance Fault Clutch Position Sensor Circuit Malfunction

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

U1078 OBD-II Diagnostic Network (U) Trouble Code Description

U1078 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Reason For U1078 Code

The reason of U1078 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

U1078 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.