Questions & Answers for: Mercury Villager fault codes

..., I have a Haynes manual and it says that code P1490 identication is Vacuum Cut Valve Bypass Valve fault (California). I hope this helps. ...

...Fault Codes NOTE: Lamp fault codes must be cleared from memory before proving out the system. NOTE: When a new RCM is installed, the air bag warning indicator will operate in user mode. Switching to ...

...lead me to believe the speed sensor is defective, but you should have a Check Engine light on and a fault code for the sensor, do you have either? Autozone and others do the fault code test for free, ...

fault codes", NEVER tell you what parts to replace.  These codes are designed to point the auto repair technician to the proper diagnostic testing routine in order to pinpoint the actual cause of

fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO

fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO

...or any other stays on in the dash it is indicating that the systems control module has detected a fault, it then disables the system as long as the light is on. You must now have the dealer hook up ...

Upstream heated O2 sensor heater fault I have just installed a new upstream oxygen sensor but the check engine light is still on. The OBD -2 trouble code scans code PO135. Why the new sensor is ...

...fault code: Differential Pressure Feedback EGR Circuit High Input. This can be caused by several things. EGR Valve is bad, Flow through the valve is restricted due to carbon build-up. Electrical ...

goes back to hot when I slow down or stop). Is this the blend door actuator? These EATC fault codes are commonly caused by a sticking air temperature control blend door and or the blend door actuator.