U1421 DTC For Mercedes Benz G Class
Mercedes Benz G Class Engine Specifications:
| Engine Type : | Multi-Cylinder Engine |
| Cylinder Type : | V-Type Engine |
| Engine Air Intake Process : | Naturally Aspirated |
Your Mercedes Benz G Class engine control system detects a problem, the computer stores the diagnostic trouble
code U1421 in its memory.
To figure out what is wrong with your vehicle you must first extract the U1421 DTC For Mercedes Benz G Class.
On 1999 and later U1421 Mercedes Benz G Class 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.
U1421 Mercedes Benz G Class DTC Meaning
| U |
Network Code - Problem is climate control system, lighting, airbags, etc. |
| 1 |
MFG - Manufacturer Specific |
| 4 |
Fuel And Air Metering (Injector Circuit Malfunctions Only) |
| 2 |
Cruise Control Servo Indicates Low |
| 1 |
PCM Stack Overrun |
The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. U1421 Mercedes Benz G Class 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.
You can also check other Mercedes car models :
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The listed Mercedes models will give information about U1421 DTC.
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