U3883 Code:

OBD-II Diagnostic Network (U) Trouble Code

Possible Cause

Common causes of U3883 include a faulty electronic pressure control solenoid, hydraulic blockages inside the internal transmission fluid passages, mechanical internal transmission failures, low transmission fluid, dirty or contaminated transmission fluid, a faulty PCM or transmission control module.

Common Symptoms

  1. The PCM calculates input data and regulates transmission fluid pressure via a specially designed pressure control solenoid. The automatic transmission uses a high pressure pump (driven by the engine via the torque converter) to circulate fluid through the transmission hydraulic circuits in the transmission housing and valve body
  2. This signal is systematically forwarded to affected control modules that utilize the data to accomplish various other tasks
  3. Intermittent conditions can prove to be quite a challenge to diagnose and in extreme cases may have to be allowed to worsen before a correct diagnosis can even be attempted
  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
A/C System High Pressure High Temperature

U3883 Troubleshooting

White smoke means that the fuel that is being injected into the combustion chamber is not being burned properly. The common causes that produce white smoke range from something as simple as low engine compression or water in the fuel to the fuel pump timing being thrown off because something is starving the fuel from getting to the pump in the manner necessary for the pump to time and work correctly. U3883 OBD2 may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.

How to turn off U3883 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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