Mercedes-Benz A+class P3880 Code:

OBD-II Diagnostic Powertrain (P) Trouble Code

Trouble In Mercedes-Benz A+class P3880 Possible Cause

The most common causes of Mercedes-Benz A+class P3880 code being stored are due to a defective intermediate shaft speed sensor, output speed sensor, or input speed sensor.

Common Symptoms For Mercedes-Benz A+class P3880

  1. Begin with a visual inspection of all wiring and connectors
  2. This signal is systematically forwarded to affected control modules that utilize the data to accomplish various other tasks
  3. If either the reference voltage or ground circuits are open, use the digital volt/ohmmeter to check for continuity (disconnect all related control modules from the circuit before checking circuit resistance or controller damage may occur) and resistance in both circuits
  4. As exhaust temperature decreases (with the engine off), circuit resistance increases and the feedback voltage signal to the PCM decreases

Similar Problems

Computer And Auxiliary Outputs
TP Sensor Learn Not Complete
Transmission Engaged At High Throttle Angle

Mercedes-Benz A+class P3880 Troubleshooting

Broken engine mountings can cause banging and graunching noises. There are two main types of mounting those centrally placed close to the bottom of the block and those higher up the block which mount on to the inner wings or chassis members. Mercedes-Benz A+class P3880 OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

How to turn off Mercedes-Benz A+class P3880 check engine light ?

There are two ways to turn off the check engine light:

A repair technician can do so once repairs have been made.
The OBD II can automatically turn it off when it fails to detect the problem after several diagnostic cycles.

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