U2641 Diagnostic Trouble Code

U2641 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a U2641 diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Look at the plug wires to make sure they are not burnt or laying on the exhaust. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code U2641 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before U2641.

Fortunately, U2641 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U2641 Trouble Code For Specific Cars

U2641 Daimler One-o-four Heated Backlite Relay Circuit Failure
U2641 Peugeot Peugette Engine Coolant Temperature Circuit High Input
U2641 Porsche 911 Type 997 Fuel Composition Sensor Circuit High Input
U2641 De Soto Diplomat Hood Switch Circuit Open
U2641 Peugeot 508 EIC Switch-2 Assembly Circuit Short To Ground
U2641 Triumph Toledo Pedal Correlation PDS1 and PDS2
U2641 Gmc Terracross Park Brake Switch # 2 Released Circuit Failure