P159D BMW Fault Code

Description:

The Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke).

The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

P159D Code Symptoms :

If your P159D check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P159D and engine control unit are in charge of monitoring a bunch of different , and if they get a reading that's a little out of whack, up pops the check engine light.

Diagnosis And Repairing P159D

P159D OBD 2 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

How to fix P159D code ?

• Exhaust gas leaks
• Faulty Mass Air Flow (MAF) sensor
• Faulty Intake Valve Timing Control Solenoid Valve
• Incorrect fuel pressure

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P159D, so consult the manual to locate the brake fluid reservoir.

Bear in mind that a low fluid level can set code P159D on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.