U1494 Engine Trouble Code
Meaning of U1494 engine trouble code is a kind of network trouble code and when your car's 'U1494 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.
U1494 Fault Symptoms :
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If one of these reasons for U1494 code is occuring now you should check U1494 repair processes.
Now don't ask yourself; What should you do with U1494 code ? The solution is here : |
U1494 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. |
U1494 Code Meaning :
U | 1 | 4 | 9 | 4 |
---|---|---|---|---|
OBD-II Diagnostic Network (U) Trouble Code For Engine | Fuel And Air Metering | O2 Sensor Heater Circuit Malfunction | Crankshaft Position Sensor A Circuit Malfunction | Timing Reference High Resolution Signal A Too Many Pulses |
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.
U1494 OBD-II Diagnostic Network (U) Trouble Code DescriptionU1494 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.Main reason For U1494 CodeThe reason of U1494 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction. |
U1494 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.