C0065 Code:

OBD-II Diagnostic Chassis (C) Trouble Code

Possible Cause

The most common causes of this C0065 code being stored are due to a defective input speed sensor or output speed sensor. Other common causes include shorted, open, corroded, or damaged wiring circuits or connectors.

Common Symptoms

  1. However, leaks that originate from the front seal (behind the torque converter) will likely require removal of the transmission, at which time you may want to consider a transmission rebuild if the mileage dictates. If the transmission appears to be in good working order and doesn't appear to be overheating, suspect a defective input or output speed sensor
  2. Should all system circuitry and sensors check out and the transmission is in good working order, suspect a faulty PCM but keep in mind that PCM failure is rare and PCM replacement will require reprogramming.
  3. This signal is systematically forwarded to affected control modules that utilize the data to accomplish various other tasks
  4. Individual control module failure is rare but possible

Similar Problems

Accelerator Pedal Position (APP) Sensor 1 Performance
Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

C0065 Troubleshooting

A sure sign of this is smoke or steam being emitted from underneath the hood. The ignition timing could be set incorrectly and will require adjustment. If, when looking under the hood, you notice that the drive belts appear loose, they need to be tightened or completely replaced. If there is a noticeable pool of fluid underneath the car, this could be a sign of the cylinder head gasket failing. That will be confirmed in the form of billowing smoke being blown from the exhaust system. C0065 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 C0065 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.

EngineTroubles.com Logo

Copyright © 2017 | https://www.enginetroubles.com | All Rights Reserved.