Description
OBD-II Trouble Code Description for P0423 Peugeot
Heated Catalyst Efficiency Below Threshold
What does this mean?
OBD2 Code P0423 Peugeot definition:
The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing. This test monitors the number of high resolution pulses which have been missed (not detected). It’s based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. There are approximately 64 high resolution pulses for every cam pulse.
Symptoms
Possible sumptoms of OBD code P0423 Peugeot
– Engine Light ON (or Service Engine Soon Warning Light)
Causes
Possible causes of OBD code P0423 Peugeot
– Open or short in the optical sensor circuit – Optical sensor connector – Damaged optical sensor – Damaged PCM or ECM The Error code is generally activated on detection of the following conditions: Some high resolution pulses are missing from the optical sensor to the PCM
Possible Solutions
– If damage, repair optical sensor circuit – Replaced optical sensor – Replaced PCM or ECM
The OBD2 Code Information Be Applicable For Peugeot:
2013 Peugeot 508,2013 Peugeot 4008,2013 Peugeot 308,2013 Peugeot 208,2013 Peugeot 107,2012 Peugeot 308,2012 Peugeot 208,2011 Peugeot 508,2011 Peugeot 408,2011 Peugeot 308,2010 Peugeot 207,2010 Peugeot 207,2009 Peugeot 407,2009 Peugeot 308,2009 Peugeot 206,2009 Peugeot 107,2008 Peugeot 308,2008 Peugeot 207,2007 Peugeot 308,2007 Peugeot 207,2006 Peugeot 407,2006 Peugeot 207,2006 Peugeot 206,2005 Peugeot 407,2005 Peugeot 307,2005 Peugeot 206,2005 Peugeot 107,2005 Peugeot 1007,2004 Peugeot 607,2004 Peugeot 407,2004 Peugeot 206,2003 Peugeot 307,2003 Peugeot 206
Note:
1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Peugeot makes.
2. Look up the other OBD II Trouble Codes, please use the search box. Enter the 5 character trouble codes in the search box and submit the search.
3. Don’t assume a particular OBD-II code means the same for other auto manufacturers as there are many makes specific codes in use.
4. If your OBD-II trouble codes are for a different car, select that vehicle series before searching for the diagnostic codes because not all OBD2 codes used by one manufacture are used by the other makes.
5. The information contained on this site is presented for informational purposes only. We are not responsible for any actions you take on your vehicle. If you have any doubt as to repairs on your vehicle, please contact your technician.