C1761 Diagnostic Trouble Code

C1761 is a kind of OBD-II Diagnostic C-Chassis 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 C1761 diagnostic trouble code may include:

If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Corroded or damaged connector
Reduction in engine performance, especially at low RPM levels
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.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed. Now, clear the codes and test-drive the vehicle to see if the code is reset.

Process Tips

Diagnostic trouble code C1761 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 C1761.

Fortunately, C1761 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1761 Trouble Code For Specific Cars

C1761 Nissan E20 Clutch Pedal Switch A Circuit Low
C1761 Opel Insignia Ii Dim Panel Potentiometer Switch Circuit Failure
C1761 Honda Thats Reverse Input Circuit
C1761 Chevrolet Equinox 3 Driver's Seat Seatback Autoglide Forward Switch Circuit Short to Ground
C1761 Mini Iii ASM Control Circuit Low
C1761 Saturn Curve
C1761 Chrysler Dart EPC Malfunction