B1D87 Diagnostic Trouble Code

B1D87 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 B1D87 diagnostic trouble code may include:

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

Possible Causes :

Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code B1D87 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 B1D87.

Fortunately, B1D87 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

B1D87 Trouble Code For Specific Cars

B1D87 Citroen 2cv First Gear Switch Circuit Malfunction
B1D87 Renault Dauphine Gear Shift Position Circuit Low
B1D87 Nash Rambler Catalyst Temperature Sensor Failure
B1D87 Lada 1600 Shift Solenoid A Control Circuit High
B1D87 Moretti 750 Battery Voltage Low
B1D87 Buick 80 Cylinder 4 Misfire Detected
B1D87 Volkswagen Jetta Right Front Center Sensor Circuit Short to Vbat