B1969 Diagnostic Trouble Code

B1969 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 B1969 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 :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code B1969 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 B1969.

Fortunately, B1969 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1969 Trouble Code For Specific Cars

B1969 Kia Carens Seat Rear Vertical Motor Position Out of Range
B1969 Pontiac Firehawk Exhaust Valve Control Solenoid C ircuit High (Bank 1)
B1969 Goliath Gp Passenger Door Ajar Circuit Short To Ground
B1969 Riley Redwing Hydraulic Fluid Pressure/ Flow Circuit Failure
B1969 Nissan 211 Chime Input Request Circuit Failure
B1969 Mercedes S 63 Air Bag Crash Sensor #1 Feed/Return Circuit Open
B1969 Mg Gs Air Suspension RR Corner Down Timeout