Nissan Rasheen U0939 Code:

OBD-II Diagnostic Network (U) Trouble Code

Trouble In Nissan Rasheen U0939 Possible Cause

The most common cause for this Nissan Rasheen U0939 type of failure is due to liquids spilled on the upshift/downshift switch. Open or shorted electrical wiring, damaged, corroded, or disconnected wiring or connectors are also a viable possibility.

Common Symptoms For Nissan Rasheen U0939

  1. Typical resistance for this sensor should be approximately 150 ohms but double check manufacturer's specifications prior to testing
  2. Look for shorted or burned wiring and replace circuitry and connectors as required
  3. Many scanners will permit the technician to retrieve these alpha numeric numbers (or codes) prior to controller replacement
  4. To perform a thorough diagnosis, any transmission leaks should be repaired and the transmission should be filled with the proper amount and type of fluid (if the fluid smells really "burnt" and you are experienced enough to detect it, you may go ahead and condemn the transmission)

Similar Problems

IC Module 4X Ref Circuit Intermittent, No Pulses
Crankshaft Position Sensor Circuit Performance
TFP Valve Position Switch-Drive Without Drive Ratio

Nissan Rasheen U0939 Troubleshooting

If this is the case with the code, you will be hearing very loud noises, like explosions, from the rear of the vehicle upon acceleration. Firstly check the carburetor to ensure that the fuel and air combination are properly balanced. If these settings are correct, then thoroughly inspect the distributor cap for any cracks or hairline splits, as this can produce a backfire. Move on to the spark plugs and ensure that they are clean and undamaged and inspect the engine gaskets for any sign of damage, as they are responsible for ensuring the correct gas exchange within the engine. Nissan Rasheen U0939 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 Nissan Rasheen U0939 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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