VOLKSWAGEN · 2017-07-05
MIL-on P0420 and/or P0430 in the ECM
P0430 · Manufacturer communications
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
P0430 ← What does this code mean?185 Results
VOLKSWAGEN · 2017-06-28
MIL-on P0420 and/or P0430 in the ECM
VOLKSWAGEN · 2017-06-22
MIL-on P0420 and/or P0430 in the ECM
HONDA · 2017-06-20
Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
VOLKSWAGEN · 2017-06-12
MIL-on P0420 and/or P0430 in the ECM
VOLKSWAGEN · 2017-06-08
MIL-on P0420 and/or P0430 in the ECM
VOLKSWAGEN · 2017-06-06
MIL-on P0420 and/or P0430 in the ECM
ACURA · 2017-05-17
Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
ACURA · 2017-04-15
SERVICE BULLETIN - THE MIL COMES ON WITH DTC P0430 (FRONT BANK CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD [BANK 2]). THE PCM SOFTWARE MAY MISINTERPRET SENSOR INPUTS AS A DETERIORATED CATALYTIC CONVERTER.
CADILLAC, CHEVROLET, GMC, HUMMER · 2017-01-12
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have…
AUDI · 2016-11-01
This bulletin provides information regarding a software update for DTC P042000 and/or P043000.
CHRYSLER, DODGE · 2016-09-07
Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs have been set: U0140 - Lost Communication With Body Control Module. P0441 - EVAP Purge System Performance. P0420 - Catalyst Efficiency (Bank 1). P0430 - Catalyst Efficiency (Bank 2). P0133 - O2 Sensor 1/1 Slow Response. P0153 - O2 Sensor 2/1 Slow Response. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. P113D - O2 Sensor 1/1 Slow…
AUDI · 2016-01-25
TSBs in this newsletters include the MIL on due to DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) being stored in the ECM. New ECM software implemented to correct the condition.
AUDI · 2016-01-11
The MIL is on due to DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) being stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow. New ECM software implemented to correct the condition.
ACURA · 2015-12-22
SERVICE BULLETIN - THE MIL COMES ON WITH DTC P0430 (FRONT BANK CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD [BANK 2]). THE PCM SOFTWARE MAY MISINTERPRET SENSOR INPUTS AS A DETERIORATED CATALYTIC CONVERTER.
DODGE · 2015-12-12
Flash: 3.6L Powertrain Diagnostic And System Enhancements This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new software. NOTE: There will be two software packages to choose from. Both software updates will fix all symptoms/conditions listed. One will contain a enhanced accelerator pedal operation and one will not. Refer to the ?Symptoms/Conditions? for a detailed description of the changes. Be sure to consult with the Customer on what software version they prefer, Enhanced Pedal or Standard Pedal. Once the software choice is programmed it is a permanent change. NOTE: There is another software choice available, in addition to addressing all the symptom/conditions listed. This new version of software called Enhanced Pedal has an update to the accelerator…
LAND ROVER · 2015-09-28
"SITUATION: ON VEHICLES FITTED WITH THE 4.2L SC V8 ENGINE ONLY, THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED. UPON DIAGNOSIS, THE TECHNICIAN FINDS THAT DIAGNOSTIC TROUBLE CODE P0420 AND/OR P0430 ONLY ARE STORED IN THE ENGINE CONTROL MODULE (ECM). CAUSE: THIS MAY BE CAUSED BY THE ECM DIAGNOSTIC SOFTWARE INCORRECTLY REPORTING AN AGED/LOW EFFICIENCY CATALYTIC CONVERTER."
AUDI · 2015-07-29
Supersedes Technical Service Bulletin Group 01 number 15-26 dated June 30, 2015. The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM). The diagnostic limitations were too narrow.
ACURA · 2015-07-17
"ENGINEERING REQUEST - AMERICAN HONDA (AHM) IS INVESTIGATING CERTAIN 2014 MDXS WITH CLIENTS REPORTING A VEHICLE WITH THE MIL INDICATOR ON WITH DTC P0430 AND HAS NO HISTORY OF ENGINE MISFIRE OR OTHER ENGINE ISSUES. TO FULLY UNDERSTAND THE CAUSE OF THIS OCCURRENCE, AHM WOULD LIKE TO COLLECT INFORMATION FROM THE VEHICLE IN A SPECIFIC CONDITION PRIOR TO YOU ATTEMPTING A REPAIR OF ANY KIND."
ACURA · 2015-07-06
DEALER MESSAGE - AMERICAN HONDA (AHM) IS INVESTIGATING CERTAIN 2014 MDXS WITH CLIENTS REPORTING A VEHICLE WITH THE MIL INDICATOR ON WITH DTC P0430 AND HAS NO HISTORY OF ENGINE MISFIRE OR OTHER ENGINE ISSUES. TO FULLY UNDERSTAND THE CAUSE OF THIS OCCURRENCE, AHM WOULD LIKE TO COLLECT INFORMATION FROM THE VEHICLE IN A SPECIFIC CONDITION PRIOR TO YOU ATTEMPTING A REPAIR OF ANY KIND.
AUDI · 2015-06-30
The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.
ACURA · 2015-06-10
"DEALER MESSAGE - AMERICAN HONDA (AHM) IS INVESTIGATING CERTAIN 2014MDXS WITH CLIENTS REPORTING A VEHICLE WITH THE MILINDICATOR ON WITH DTC P0430 AND HAS NO HISTORY OF ENGINE MISFIRE OR OTHER ENGINE ISSUES. TO FULLY UNDERSTAND THE CAUSE OF THIS OCCURRENCE, AHM WOULD LIKE TO COLLECT INFORMATION FROM THE VEHICLE IN A SPECIFIC CONDITION PRIOR TO YOU ATTEMPTING A REPAIR OF ANY KIND."
ACURA · 2015-05-26
DEALER MESSAGE - AMERICAN HONDA (AHM) IS INVESTIGATING CERTAIN 2014 MDXS WITH CLIENTS REPORTING A VEHICLE WITH THE MIL INDICATOR ON WITH DTC P0430 AND HAS NO HISTORY OF ENGINE MISFIRE OR OTHER ENGINE ISSUES. TO FULLY UNDERSTAND THE CAUSE OF THIS OCCURRENCE, AHM WOULD LIKE TO COLLECT INFORMATION FROM THE VEHICLE IN A SPECIFIC CONDITION PRIOR TO YOU ATTEMPTING A REPAIR OF ANY KIND.
LAND ROVER · 2015-05-18
"ISSUE -REPAIR TRIGGERED DUE TO MIL LIGHT CAUSED BY DTC P0430 OR P0420. -MILEAGE: LESS THAN 80,000 MILES -NO PREVIOUS INCIDENCE OF MISFIRE DTC P03XX CAUSE: POSSIBLE FAULT WITH EXHAUST CATALYTIC CONVERTER."
LEXUS · 2015-02-10
LSB: Some 2010 model year RX 450h vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0430 stored in the Engine Control Module or ECM (SAE term: Powertrain Control Module/PCM). Use the following Repair Procedure to address this condition.
FORD · 2014-09-16
LINCOLN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN VEHICLES, POWERTRAIN CONTROL MODULE NEED AN UPDATED CALIBRATION DUE TO AN ACCELERATED CATALYST DEGRADATION AND LOST OF AN EFFICIENT CATALYST, WITH MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH P0420 AND/OR P0430. MODEL 2013-14 MKS, MKT LIVERY, POLICE INTERCEPTOR SEDAN, INTERCEPTOR UTILITY. *PE
VOLKSWAGEN · 2014-09-10
Update Programming, MIL ON, DTCs P0420, P0430 Stored in ECM Fault Memory
INFINITI · 2014-07-18
IF YOU CONFIRM MIL "ON" with DTC P0420 and/or P0430 (Three Way Catalyst Function), ACTION: 1. Reprogram the ECM (if needed). 2. Replace three way catalyst and A/F sensor. See this bulletin for further detail.
HONDA · 2014-06-05
AMERICAN HONDA: THERE MAY BE A MALFUNCTION INDICATOR LAMP ON WITH STORED DTC P0430 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD). AHM WOULD LIKE TO INSPECT/COLLECT PARTICULAR PARTS FROM THE VEHICLE BEFORE ANY ATTEMPTED REPAIRS HAVE BEEN MADE. *JS
CADILLAC, CHEVROLET, GMC, HUMMER · 2014-05-14
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have…