Your Bentley Mulsanne engine control system detects a problem, the computer stores the diagnostic trouble
code P1426 in its memory.
To figure out what is wrong with your vehicle you must first extract the P1426 DTC For Bentley Mulsanne.
On 1999 and later P1426 Bentley Mulsanne engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
P1426 Bentley Mulsanne DTC Meaning
Powertrain Code - Problem is related engine, transmission and emissions systems.
MFG - Manufacturer Specific
Fuel And Air Metering (Injector Circuit Malfunctions Only)
Cruise Control Servo Indicates Low
Transmission Control Module Reprogrammable Memory
The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. P1426 Bentley Mulsanne code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.