B3189 Diagnostic Trouble Code

B3189 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 B3189 diagnostic trouble code may include:

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

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

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. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code B3189 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 B3189.

Fortunately, B3189 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B3189 Trouble Code For Specific Cars

B3189 Toyota Sequoia Park/Neutral Switch Circuit Failure
B3189 Holden Hk Power Door Memory Lock Relay Circuit Short To Ground
B3189 Geely Ck O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
B3189 Volkswagen Export Ride Control LF Shock Actuator Circuit Open
B3189 Volvo V4
B3189 Turner Climax Pedal Position Sensor C Circuit Low Input
B3189 Boll Limousine Compressor Failure