B1606 Diagnostic Trouble Code

B1606 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 B1606 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.
Rich or lean exhaust

Possible Causes :

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

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Look at the plug wires to make sure they are not burnt or laying on the exhaust. It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.

Process Tips

Diagnostic trouble code B1606 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 B1606.

Fortunately, B1606 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1606 Trouble Code For Specific Cars

B1606 Ultima Gtr Power Supply Sensor Circuit Open
B1606 Mg Mga Air Suspension Vent Solenoid Output Circuit Failure
B1606 Jaguar Xk-ss Seat Driver Rear Down Circuit Short To Battery
B1606 Vauxhall Chevette Pressure Control Solenoid "B" Open Circuit
B1606 Alfa Romeo Sportwagon Air Bag Crash Sensor #2 Feed/Return Circuit Short To Battery
B1606 Buick Signia Damper Circuit Failure
B1606 Triumph 1500 Passenger's Front Seat Down Switch Circuit Short to Battery