The crankshaft position (CKP) system variation learn feature is used to
calculate reference period errors caused by slight tolerance variations
in the crankshaft, and the CKP sensors. The calculated error allows the
powertrain control module (PCM) to accurately compensate for reference
period variations. This enhances the ability of the PCM to detect
misfire events over a wider range of engine speed and load.
The code P1336 is for a Crankshaft (CKP) and/or Camshaft (CMP) position
sensor input signal to PCM concert. It is triggered if the input signal
to the PCM for either of these sensors is erratic. Per the factory
service manual, this can be due to:
- a damaged PCM
- damaged CKP sensor
- damaged CMP sensor
- base engine
- harness concerns.
The service manual suggests checking the following items:
- harness routings,
- alterations,
- improper shielding,
- or electrical interference from other improperly functioning systems.
To properly check the operation of the CMP and CKP, you'll really need
an oscilloscope. The code is probably being triggered due to a faulty
sensor or connection and not something that just needs to be reset.
Step / Action / Yes / No
1. Did you perform the Diagnostic System Check-Engine Controls?
Yes: Go to Step 2
No: Go to Diagnostic System Check - Engine Controls
2. Preform the CKP system variation learn procedure. Refer to CKP System Variation Learn Procedure. Did you complete the action?
Yes: Go to Step 3
No: Go to Diagnostic Aids
3. Clear the DTCs with a scan tool.
Turn OFF the ignition.
Start the engine.
Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC run and pass?
Yes: Go to Step 4
No: Go to Step 2
4. With a scan tool observe the stored information, Capture Info.
Does the DTC run and pass?
Yes: Go to Diagnostic Trouble Code (DTC) List
No: System OK
Diagnostic Aids:
The CKP system variation values are not stored in the PCM memory after a learn procedure has been performed. If the actual CKP variation is not within the CKP system variation compensating values stored in the PCM, DTC P0300 may set.
The CKP system variation learn procedure is also required when the following service procedures have been performed, regardless of whether DTC P1336 is set.
An engine replacement
A PCM replacement
A harmonic balancer replacement
A crankshaft replacement
Any engine repairs which disturb the CKP sensor relationship
If the CKP system variation learn procedure cannot be performed successfully, check for the following conditions and correct as necessary:
A damaged reluctor wheel
Excessive crankshaft runout
A damaged crankshaft
Interference in the signal circuit of the CKP sensor
A coolant temperature that is not within the Conditions For Running the DTC
The ignition switch is in the ON position until the battery is drained
A PCM power disconnect with the ignition ON may erase the stored value and set the DTC P1336
Hope helps.
In this link could find additiona details about this DTC: ASDF_DTC_P1336
×
Check
engine light comes on and off, these are indication that there is some
error code stored in your vehicles ECM. The engine module computer
needs to be scanned. These will give the code and as per the error code the
further problem can be detected and confirmed. The engine light
indicator blinks or remains steady on dash when engine computer
noticed any problem with any engine electrically operated components.
For
more help, I suggest you to refer the help link provided below. These will let
you know more about which areas to look, check, when there is engine light
coming up on dash panel.
---------
Click
the link below: -------
http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html
---------
These will help.
Thanks.
these
are indication that there is some error code stored in your vehicles ECM.
The engine module computer needs to be scanned. These will give the code
and as per the error code the further problem can be detected and confirmed.
The engine light indicator blinks or remains steady on dash when
engine computer noticed any problem with any engine electrically operated
components.
For
more help, I suggest you to refer the help link provided below. These will let
you know more about which areas to look, check, when there is light
coming up on dash panel.
---------
Click
the link below: -------
http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html
--------
Check
engine light comes on and off, these are indication that there is some
error code stored in your vehicles ECM. The engine module computer
needs to be scanned. These will give the code and as per the error code the
further problem can be detected and confirmed. The engine light
indicator blinks or remains steady on dash when engine computer
noticed any problem with any engine electrically operated components.
For
more help, I suggest you to refer the help link provided below. These will let
you know more about which areas to look, check, when there is engine light
coming up on dash panel.
---------
Click
the link below: -------
http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html
--------
These will help.
Thanks.
Check
engine light comes on and off, these are indication that there is some
error code stored in your vehicles ECM. The engine module computer
needs to be scanned. These will give the code and as per the error code the
further problem can be detected and confirmed. The engine light
indicator blinks or remains steady on dash when engine computer
noticed any problem with any engine electrically operated components.
For
more help, I suggest you to refer the help link provided below. These will let
you know more about which areas to look, check, when there is engine light
coming up on dash panel.
---------
Click
the link below: -------
http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html
---------
These will help.
Thanks.
Check
engine light comes on and off, these are indication that there is some
error code stored in your vehicles ECM. The engine module computer
needs to be scanned. These will give the code and as per the error code the
further problem can be detected and confirmed. The engine light
indicator blinks or remains steady on dash when engine computer
noticed any problem with any engine electrically operated components.
For
more help, I suggest you to refer the help links provided below. These will let
you know more about which areas to look, check, when there is engine light
coming up on dash panel.
---------
Click
the link below: -------
CHECK ENGINE LIGHT
http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html
---------------
Check Engine Light Reset Procedure?
http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html
----------
These will help.
Thanks.
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