C1409 Mercedes-Benz Auto Trouble Code
C1409 Mercedes-Benz OBD2 reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.
Accelerator Pedal Position Sensor 1 Circuit Low and P2127 - Accelerator Pedal Position Sensor 2 Circuit Low would lead you to suspect a defective accelerator pedal position sensor.
C1409 Mercedes-Benz Possible Solution:
Vehicle Speed Sensor (VSS) Out of Self Test Range Indicates the VSS input signal is out of Self Test range. If the PCM detects a VSS input signal any time during Self Test, a DTC P1501 will be set and the test will abort. Noisy VSS input signal from Radio Frequency Interference/ Electro-Magnetic Interference (RFI/EMI) external sources such as ignition wires, charging circuit or after market equipment. Check for VSS input to be 0 mph when vehicle transmission is in Park.
C1409 Mercedes-Benz Description For All Models :
- Mercedes-benz 130
- Mercedes-benz 14
- Mercedes-benz 15
- Mercedes-benz 150
- Mercedes-benz 170
- Mercedes-benz 180
- Mercedes-benz 190
- Mercedes-benz 200
- Mercedes-benz 219
- Mercedes-benz 220
- Mercedes-benz 230
- Mercedes-benz 240
- Mercedes-benz 250
- Mercedes-benz 260
- Mercedes-benz 280
- Mercedes-benz 290
- Mercedes-benz 300
- Mercedes-benz 320
- Mercedes-benz 350
- Mercedes-benz 38
- Mercedes-benz 380
- Mercedes-benz 400
- Mercedes-benz 420
- Mercedes-benz 450
- Mercedes-benz 500
- Mercedes-benz 540
- Mercedes-benz 560
- Mercedes-benz 600
- Mercedes-benz 770
- Mercedes-benz A Class
- Mercedes-benz B Class
- Mercedes-benz Bionic
- Mercedes-benz C Class
- Mercedes-benz C111
- Mercedes-benz Ck Class
- Mercedes-benz Cl Class
- Mercedes-benz Clc Class
- Mercedes-benz Clk Class
- Mercedes-benz Cls Class
- Mercedes-benz Concept
- Mercedes-benz Cw
- Mercedes-benz E Class
- Mercedes-benz F Class
- Mercedes-benz G Class
- Mercedes-benz Gl Class
- Mercedes-benz Glk Class
- Mercedes-benz M Class
- Mercedes-benz Mcc
- Mercedes-benz Ml Class
- Mercedes-benz Ponton
- Mercedes-benz R Class
- Mercedes-benz S
- Mercedes-benz S Class
- Mercedes-benz Sc Class
- Mercedes-benz Sl Class
- Mercedes-benz Slk Class
- Mercedes-benz Slr Class
- Mercedes-benz Smart
- Mercedes-benz Sprinter
- Mercedes-benz Swatch
- Mercedes-benz T Class
- Mercedes-benz V Class
- Mercedes-benz Vaneo
- Mercedes-benz Viano
- Mercedes-benz Vision
- Mercedes-benz Vito
- Mercedes-benz W110
- Mercedes-benz W111
- Mercedes-benz W123
- Mercedes-benz W136
- Mercedes-benz W196
C1409 Mercedes-Benz Trouble Repair :
The sensors receive a 5 volt reference signal from the PCM. As pressure readings change, the sensor varies the voltage and the computer reads that to determine input. In the case of a broken wire, the sensor never sees the voltage and the computer assumes a major fault. So if you get this C1409 Mercedes-Benz code, first check to make sure you're getting a good 5 volt reference signal at the sensor.
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