NISSAN
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420 (THREE WAY CATALYST FUNCTION) STORED IN THE ECM. *TT
HomeP0420 · Manufacturer communications
P0420 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
INFINITI
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420 (THREE WAY CATALYST FUNCTION) STORED IN THE ECM. *TT
MAZDA
Reported code forms P0420
MAZDA SPECIAL PROGRAM (MSP04) - ENGINE NO START, LACK OF POWER, DIAGNOSTIC TROUBLE CODES P2107, P2108, P2402, OR P0420 - POWERTRAIN CONTROL MODULE (PCM) REFLASH. *TT
FORD, MERCURY
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE P0420 AND/OR P0430/ 2.5L ENGINE ONLY. *TT
UNKNOWN
Reported code forms P0420
MALFUNCTION INDICATOR LIGHT (MIL) P0420 CATALYST MONITORING INFORMATION. *MR
ISUZU
Reported code forms P0420
SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0420 SET. *TT
CHEVROLET, GMC
Reported code forms P0420
SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0420 SET. *TT
FORD, MERCURY
Reported code forms P0420
DRIVEABILITY-MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED-DIAGNOSTIC TROUBLE CODES (DTC'S) P0420 AND/OR P0430. *MJ
CADILLAC
Reported code forms P0420
4.6L LH2 ENGINE WITH A DIAGNOSTIC TROUBLE CODE P0420/P0430. *MR
FORD
Reported code forms P0420
DRIVEABILITY-MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED-DIAGNOSTIC TROUBLE CODES (DTC'S) P0420 AND/OR P0430. *MJ
HONDA
Reported code forms P0420
DIAGNOSTIC TROUBLE CODE P0420 AND/OR P0430, CATALYST EFFICIENCY (V6). *NM
FORD, LINCOLN, MERCURY
Reported code forms P0420
MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTCS) P0420 AND/OR P0430. *TT
HONDA
Reported code forms P0420
MALFUNCTION INDICATOR LAMP IS ON WITH DIAGNOSTIC TROUBLE CODE P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD) IS STORED. *TT *MJ
ACURA
Reported code forms P0420
MALFUNCTION INDICATOR LAMP IS ON WITH DIAGNOSTIC TROUBLE CODE P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD) IS STORED. *TT *MJ
TOYOTA
Reported code forms P0420
MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P0420 DUE TO AN ELECTRONIC CONTROL MODULE (ECM) SOFTWARE LOGIC ERROR. *TT
FORD
Reported code forms P0420
MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES P0420 AND/OR P0430. *TT
FORD, LINCOLN, MERCURY
Reported code forms P0420
MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTCS) P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD - BANK 1) AND/OR P0430 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD - BANK 2). *TT
HONDA
Reported code forms P0420
MALFUNCTION INDICATOR LAMP COMES ON WITH DIAGNOSTIC TROUBLE CODE P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD). *TT
HONDA
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ON AND DIAGNOSTIC TROUBLE CODE P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD) IS SET. *TT
FORD, LINCOLN, MERCURY
Reported code forms P0420
P0420 AND/OR P0430 CATALYST EFFICIENCY DIAGNOSTIC TROUBLE CODES. 1996-2003 FORD, LINCOLN AND MERCURY VEHICLES. *TT
TOYOTA
Reported code forms P0420
ENGINE CONTROL MODULE (ECM) CALIBRATION UPDATE: MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420 OR P0430. *TT *JB
CADILLAC
Reported code forms P0420
SERVICE ENGINE SOON (SES) LIGHT ON, REDUCED VEHICLE POWER / ACCELERATION / SPEED, DIAGNOSTIC TROUBLE CODE (DTC) P0420. *TT
HONDA
Reported code forms P0420
DIAGNOSTIC TROUBLE CODES P0133 AND P0420 SET AFTER MANUAL TRANSMISSION REMOVAL AND REPLACEMENT. *TT
NISSAN
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODES P0420 /P0430 STORED IN THE ENGINE CONTROL MODULE (ECM). *TT
INFINITI
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420/P0430 BANK-1 / BANK-2 CATALYST STORED. *TT
NISSAN
Reported code forms P0420
MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420/P0430 BANK-1/BANK-2 CATALYST. *TT
NISSAN
Reported code forms P0420
THIS BULLETIN PROVIDES INFORMATION ON VEHICLES EXHIBITING A MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420 CATALYST SET. *TT
NISSAN
Reported code forms P0420
INFORMATION ON DIAGNOSING MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0420 / P0430 BANK-1/BANK-2 CATALYST. *TT
INFINITI
Reported code forms P0420
SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON AND EITHER OR BOTH DIAGNOSTIC TROUBLE CODE P0420 / P0430 BANK-1 / BANK-2 CATALYST STORED. *TT
CHRYSLER, DODGE
Reported code forms P0420
CONCERNS WITH MALFUNCTION INDICATOR LAMP ILLUMINATION WITH A CATALYST EFFICIENCY FAILURE DIAGNOSTIC TROUBLE CODE (DTC P0420) RECORDED IN THE POWER TRAIN CONTROL MODULE (PCM). *TT