P1D6B Diagnostic Trouble Code

P1D6B is a kind of OBD-II Diagnostic P-Powertrain 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 P1D6B 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
Hesitation upon acceleration

Possible Causes :

A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.
Dirty air cleaner element Damaged DPF
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. 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 P1D6B 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 P1D6B.

Fortunately, P1D6B is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1D6B Trouble Code For Specific Cars

P1D6B Holden Fx Power Door Lock Circuit Short To Battery
P1D6B Graham Saloon Passenger Power Window Motor Circuit Failure
P1D6B Toyota Aristo NVM Alarm Data Failure
P1D6B Rover 2300 Ignition Coil - Cylinder 1 - Early Activation Fault
P1D6B Kaiser Special Seat Horizontal Motor Memory Position Out of Range
P1D6B Bmw 320i CD-ROM Error
P1D6B Monteverdi High Speed Battery Power Supply ECU Circuit Failure