B2156 Porsche 904 OBD Code

OBD/2 B2156 error code description and symptoms.

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

B2156 Porsche 904 Error Code Repair Process :

If your b2156 rear doppler sensor circuit failure 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 B2156 and engine control unit are in charge of monitoring a bunch of different b2156 rear doppler sensor circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Soso)

Repair Time (30 Min.)

Cost Prediction : $ 80-120

Common Causes of Porsche 904 B2156 OBD2 Code

A common cause of code B2156 is the failure of B2156 Rear Doppler Sensor Circuit Failure, but there are several other possible causes as well, such as ;

• Failures of clutch motion/travel sensors.
• Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
• Fuel injectors harness is open or shorted
• Faulty select solenoid

B2156 is a kind of Body Trouble Code Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

B2156 code for other Porsche cars

You can view according B2156 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• B2156 Porsche 1300
• B2156 Porsche 3400
• B2156 Porsche 356
• B2156 Porsche 550
• B2156 Porsche 718
• B2156 Porsche 804
• B2156 Porsche 901
• B2156 Porsche 906
• B2156 Porsche 907
• B2156 Porsche 908
• B2156 Porsche 910
• B2156 Porsche 911
• B2156 Porsche 911 Type 991
• B2156 Porsche 911 Type 996
• B2156 Porsche 911 Type 997
• B2156 Porsche 912
• B2156 Porsche 914
• B2156 Porsche 917
• B2156 Porsche 924
• B2156 Porsche 928
• B2156 Porsche 930
• B2156 Porsche 931
• B2156 Porsche 935
• B2156 Porsche 936
• B2156 Porsche 937
• B2156 Porsche 944
• B2156 Porsche 959
• B2156 Porsche 962
• B2156 Porsche 964
• B2156 Porsche 965
• B2156 Porsche 968
• B2156 Porsche 986
• B2156 Porsche 993
• B2156 Porsche 996
• B2156 Porsche Boxster
• B2156 Porsche Boxster Type 981
• B2156 Porsche Boxster Type 986
• B2156 Porsche Boxster Type 987
• B2156 Porsche Carrera Gt
• B2156 Porsche Cayenne
• B2156 Porsche Cayenne Type 92a
• B2156 Porsche Cayenne Type 9pa
• B2156 Porsche Cayman
• B2156 Porsche Cayman Type 718
• B2156 Porsche Cayman Type 981
• B2156 Porsche Cayman Type 987
• B2156 Porsche Coupe
• B2156 Porsche Dp
• B2156 Porsche Gt
• B2156 Porsche Gt2
• B2156 Porsche Gt3
• B2156 Porsche Karisma
• B2156 Porsche Kremer
• B2156 Porsche Macan Type 95b
• B2156 Porsche Mega
• B2156 Porsche Panamera Type 970
• B2156 Porsche Panamericana
• B2156 Porsche Rsk
• B2156 Porsche Tapiro

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