Audi Coupe C2641 Code:

OBD-II Diagnostic Chassis (C) Trouble Code

Trouble In Audi Coupe C2641 Possible Cause

The most common cause for this Audi Coupe C2641 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 Audi Coupe C2641

  1. The inlet door is typically closed when the key is placed in the OFF position and opened when the key is turned to the ON position
  2. Unlike other diagnostic codes, this type of code can sometimes be best left to a professional simply because of the bulk of circuitry involved
  3. A scanner (or code reader) and a digital volt/ohmmeter will be required to successfully diagnose this code. Virtually every vehicle (with an automatic transmission) produced since the mid-eighties is equipped with some type of computer controlled automatic transmission system
  4. Typical causes of low pump pressure include clogged hydraulic passages, a defective pump, faulty shift solenoids, or a faulty electronic pressure regulator

Similar Problems

Auxiliary Emission Controls
IC Circuit High Voltage
Cruise Vehicle Speed/Set Speed Difference Too High

Audi Coupe C2641 Troubleshooting

When you put your foot down on the brakes you expect your car to quietly slow down and come to a stop. The power your foot applies on the brake pedal is assisted by hydraulic pressure. Your foot's force engages a piston and caliper with brake pads attached (bonded abrasive and heat resistance metal or ceramic) to put pressure on the rotor. Audi Coupe C2641 OBD 2 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

How to turn off Audi Coupe C2641 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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