B1769 Diagnostic Trouble Code

B1769 is a kind of OBD-II Diagnostic B-Body 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 B1769 diagnostic trouble code may include:

Faulty PCM
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Poor acceleration
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code B1769 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 B1769.

Fortunately, B1769 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1769 Trouble Code For Specific Cars

B1769 Chrysler Viper Exhaust Pressure Sensor Low
B1769 Lotus Elise Sc Traction Control Input Signal High
B1769 Gobron 20 Park/Neutral Switch Circuit Short To Battery
B1769 Dkw F11 Idle Control System Malfunction
B1769 San Storm Illuminated Entry Relay Short To Battery
B1769 Horch Sachsering RF PARK LAMP OUTPUT CIRCUIT Short to Battery
B1769 Maserati 6 Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance