Please fill the "Code Box" to find engine fault code.
|The all list of engine trouble codes.|
U1231 Engine Diagnostic Code
A good ground connection is also extremely important. U1231 engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).
U1231 engine code provides below are generic codes that may not apply to all vehicles. Car manufacturer uses specific U1231 DTC code that are different from the codes shown below. Foreign vehicles may also use DTC codes different from the generic Engine Diagnostic codes.
U1231 Diagnostic Trouble Code Meaning And Solution
|Network Problem||MFG - Manufacturer Specific||Fuel And Air Metering (Injector Circuit Malfunctions Only)||31 Engine Fault Code|
Starting letter U diagnostic code shows that there are problems in climate control system, lighting, airbags, etc..
Don't forget ! If your U1231 engine code not resolved on and there are trouble codes in your computer, your vehicle will not pass an OBD 2 emissions test. The light must be off and there must be no codes in memory to pass an OBD 2 emissions test. In addition, all of the OBD II self-monitors that check for faults must have run and completed without finding any further problems to pass the test.