C1754 Diagnostic Trouble Code

C1754 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 C1754 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Dirty air cleaner element Damaged DPF

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code C1754 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 C1754.

Fortunately, C1754 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1754 Trouble Code For Specific Cars

C1754 Triumph 2000 Passengers Seat Belt Buckle Switch Circuit Short to Battery
C1754 Vauxhall Magnum Pressure Control Solenoid A Control Circuit Range/Performance
C1754 Mazda Nextourer 2-3 Shift Malfunction
C1754 Mercedes E 250 ABS Power Relay Output Circuit Failure
C1754 Isuzu Irmscher SCP (J1850) Invalid or Missing Data for Traction Motor
C1754 Aston Martin Mark Ii Air Suspension Vent Solenoid Output Circuit Failure
C1754 Mercury Mountaineer Ii Air Suspension Rear Inflator Solenoid Output Circuit Failure