Aston Martin P0336 Crankshaft Position Sensor A Circuit Range/Performance

Description

OBD-II Trouble Code Description for P0336 Aston Martin

Crankshaft Position Sensor “A” Circuit Range/Performance

What does this mean?

OBD2 Code P0336 Aston Martin definition:
The crankshaft position sensor (CKP) is usually a two wire sensor: a signal and a ground. The CKP sensor consists of (usually) a permanent magnent sensor that is mounted in front of a reluctor (toothed) wheel mounted to the crankshaft. As the reluctor wheel passes in front of the crank sensor, an A/C signal is produced that varies according to engine speed. The PCM (powertrain control module) uses this A/C signal to interpret engine RPM. Some crank sensors are hall-effect sensors instead of permanent magnent sensors. These are three wire sensors, provided with voltage, ground, and signal. They too have a reluctor wheel with vanes and “windows” that change the voltage signal to the PCM, providing a RPM signal. I will focus on the former, since they are simpler design and more common.

The crankshaft reluctor has a specific number of teeth and the PCM can determine the position of the crankshaft using only this sensor’s signature pattern. The PCM uses this sensor to also determine cylinder misfires by measuring the reluctor teeth locations in the CKP sensor signal. In conjunction with the Camshaft position sensor (CMP) the PCM can determine timing of spark and fuel injection. If the PCM senses a loss of CKP sensor signal (RPM signal) even momentarily, P0336 Aston Martin may set.

Symptoms

Possible sumptoms of OBD code P0336 Aston Martin
Symptoms of a P0336 Aston Martin DTC may include:

Intermittent stalling & no start
No start
MIL (Malfunction Indicator Lamp) illumination
Intermittent misfire

Causes

Possible causes of OBD code P0336 Aston Martin
Potential causes of a P0336 Aston Martin code include:

Bad crank sensor
Broken reluctor ring (missing teeth, debris lodged in ring)
Reluctor ring dislodged/stripped from it’s stationary location
Wiring harness chafing causing short
Wiring open in CKP circuit

Possible Solutions

Crankshaft sensor problems are at times intermittent and the vehicle may start and run for some time until problem occurs. Try to reproduce the complaint. When engine stalls or if the engine will not start and continue to run, then crank engine while observing RPM reading. If there is no RPM reading, check for a signal coming out of the crank sensor. Using a scope is best, but since most DIYers don’t have access to one you may be able to use a code reader or the tachometer to check for RPM signal.

Visually check the CKP harness for damage or cracking in the wiring insulation. Repair as necessary. Make sure the wiring isn’t mis-routed near high voltage spark plug wires. Check for loose connection or broken lock at the sensor connector. Repair as necessary. Obtain a resistance spec for the Crank sensor. Remove and check it. If it doesn’t pass, replace it. If it checks out okay, check the reluctor ring for damage, broken teeth, or debris lodged in the ring. Make sure the reluctor ring isn’t dislodged. It should be stationary on the crankshaft. Carefully repair/replace as necessary. Note: some reluctor rings are located in the bell housing of the transmission or behind the front engine cover and cannot be easily accessed.

If the vehicle intermittently stalls and after stalling you have no RPM signal and you have verified the wiring to the CKP sensor is good, then try replacing the sensor. If that doesn’t take care of it, and you can’t access the reluctor ring, seek help from an automotive professional.

The OBD2 Code Information Be Applicable For Aston Martin:

2014 Aston Martin Vanquish Volante,2014 Aston Martin V12 Vantage S,2014 Aston Martin Rapide S,2013 Aston Martin Vantage SP10,2013 Aston Martin Vanquish Q,2013 Aston Martin Vanquish Centenary Edition,2013 Aston Martin V12 Zagato,2013 Aston Martin V12 Vantage Roadster,2013 Aston Martin DB9,2013 Aston Martin CC100 Speedster Concept,2013 Aston Martin AM 310 Vanquish,2012 Aston Martin Virage Volante,2012 Aston Martin Virage,2012 Aston Martin Vantage GT3,2012 Aston Martin V8 Vantage S Roadster,2012 Aston Martin V8 Vantage S,2012 Aston Martin V8 Vantage,2012 Aston Martin Cygnet,2011 Aston Martin Vantage GT4,2011 Aston Martin V8 Vantage N420 Roadster,2011 Aston Martin V8 Vantage N420,2011 Aston Martin V12 Zagato Racecar,2011 Aston Martin V12 Zagato Concept,2011 Aston Martin DBS Carbon Edition,2011 Aston Martin DB9,2010 Aston Martin V12 Vantage,2010 Aston Martin Rapide,2010 Aston Martin One-77,2010 Aston Martin DBS Volante,2009 Aston Martin Vantage GT4,2009 Aston Martin V8 Vantage Roadster,2009 Aston Martin V8 Vantage,2009 Aston Martin Lagonda Concept,2009 Aston Martin DB9 Volante,2009 Aston Martin DB9,2009 Aston Martin Cygnet Concept,2008 Aston Martin V8 Vantage N400,2008 Aston Martin DBS Racing Green,2008 Aston Martin DBS Lightning Silver,2008 Aston Martin DBS Infa Red,2008 Aston Martin DBS,2008 Aston Martin DB9 LM,2007 Aston Martin V8 Vantage Roadster,2007 Aston Martin V8 Vantage N24,2007 Aston Martin V8 Vantage,2007 Aston Martin V12 Vantage RS Concept,2007 Aston Martin DBS,2007 Aston Martin DB9 Volante,2007 Aston Martin DB9,2006 Aston Martin Rapide Concept,2006 Aston Martin DBRS9,2005 Aston Martin V8 Vantage,2005 Aston Martin DBR9,2004 Aston Martin Zagato Vanquish Roadster Concept,2004 Aston Martin Vanquish S V12,2004 Aston Martin DBR9 Prototype,2004 Aston Martin DB9 Volante,2004 Aston Martin DB9,2003 Aston Martin DB AR1,2003 Aston Martin DB7 GT,2003 Aston Martin AMV8 Concept Car,2002 Aston Martin DB7 Vantage Zagato

 

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