Singer 8 P3680 Code:

OBD-II Diagnostic Powertrain (P) Trouble Code

Trouble In Singer 8 P3680 Possible Cause

The most likely cause of Singer 8 P3680 code being stored is a defective automatic transmission cooler control valve or valve position sensor. Other causes may include corroded, open, or shorted wiring or connectors, a loose control module ground strap, or broken ground wire.

Common Symptoms For Singer 8 P3680

  1. The first wire is a reference voltage signal (usually 5-volts), the second wire will normally be a ground wire, and the third wire will be a signal wire
  2. Look for shorted or burned wiring and replace circuitry and connectors as required
  3. Some applications also utilize the inlet door to regulate air flow through the intake tube by adjusting the degree to which the door opens according to throttle position
  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

Auxiliary Emission Controls
TP Sensor Learn Not Complete
Transmission Engaged At High Throttle Angle

Singer 8 P3680 Troubleshooting

There will also be noise coming from the turning radiator fan and the belt that turn the fan blade. There are a multiple of other belt driven devices under the hood. An engine pulley is mounted to the engine of an automobile and drives all belts. Your car probably has a serpentine belt which is a continuous belt used to drive multiple peripheral devices. Singer 8 P3680 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 Singer 8 P3680 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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