U1505 Opel Diplomat DTC Code

Opel Diplomat Engine Specifications:

Engine Type :	Multi-Cylinder Engine
Cylinder Type :	W-Type Engine
Engine Air Intake Process :	Supercharged Engine

Your Opel Diplomat engine control system detects a problem, the computer stores the diagnostic trouble code U1505 in its memory. To figure out what is wrong with your vehicle you must first extract the U1505 DTC For Opel Diplomat.

On 1999 and later U1505 Opel Diplomat 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.

U1505 Opel Diplomat DTC Meaning

U	Network Code - Problem is climate control system, lighting, airbags, etc.
1	MFG - Manufacturer Specific
5	Auxiliary Emission Controls
0	Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
5	Cruise Inhibit Control Circuit

There are currently two main types of cylinder deactivation used today, depending on the type of engine. U1505 Opel Diplomat code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.