P1233 · Manufacturer communications

HYUNDAI · 2023-06-29

Certain 2015-2019MY Sonata (LFA) vehicles may intermittently exhibit reduced engine power, a “Crank/No Start” condition, and/or have DTC P1233 stored in the ECM due to an internally leaking fuel pump filter housing. For vehicles exhibiting one or more of these conditions, Hyundai is extending warranty coverage for fuel pump filter assembly repair or replacement to 15 years / 150,000 miles from the date of original retail delivery or date of first use (whichever occurs first). This service action and warranty extension is valid for original and subsequent owners.

HYUNDAI · 2023-06-29

Certain 2015-2019MY Sonata (LFA) vehicles may intermittently exhibit reduced engine power, a “Crank/No Start” condition, and/or have DTC P1233 stored in the ECM due to an internally leaking fuel pump filter housing. Hyundai is extending warranty coverage for fuel pump filter assembly repair or replacement to 15 years / 150,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the service procedure to inspect the low-pressure fuel pump operation and replace the fuel filter if necessary.

KIA · 2022-10-31

TECHNICAL SERVICE BULLETIN: FUEL PUMP FILTER INSPECTION/REPLACEMENT - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information associated with the 'Warranty Extension Program' (WTY028) to inspect and, if necessary, replace the fuel pump filter assembly on 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 23, 2020, for repairs that may be necessary to address a low-pressure fuel pump failure to be covered for 15 years / 150,000 miles, whichever comes first starting from the date the vehicle was first put into service. The affected vehicles may exhibit an intermittent reduction in engine power, contain an active or stored DTC P1233…

KIA · 2022-10-28

TECHNICAL SERVICE BULLETIN: FUEL PUMP FILTER INSPECTION/REPLACEMENT - This bulletin provides information associated with the 'Warranty Extension Program' (WTY028) to inspect and, if necessary, replace the fuel pump filter assembly on 2016-2020MY Optima (JFa) vehicles produced from August 28, 2015 through June 23, 2020, for repairs that may be necessary to address a low-pressure fuel pump failure to be covered for 15 years / 150,000 miles, whichever comes first starting from the date the vehicle was first put into service. The affected vehicles may exhibit an intermittent reduction in engine power, contain an active or stored DTC P1233 and/or exhibit a 'No Start' condition due to a cracked fuel pump filter housing.

FORD, LINCOLN, MERCURY · 2004-05-01

DIAGNOSTIC TROUBLE CODE (DTC) P1233 WITH POSSILE DRIVEABILITY OR NO START CONDITION. *TT

FORD, MERCURY · 2004-03-01

AN INTERMITTENT NO START AND/OR MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTC'S) P1233, P1234, P1235, P1236, P1237 OR P1238. *TT

FORD · 2003-09-01

MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P1233, WITH OR WITHOUT ANY DRIVEABILITY CONCERNS. *TT

FORD, MERCURY · 2001-03-01

SOME VEHICLES MAY EXHIBIT VARIOUS DIAGNOSTIC TROUBLE CODES (DTCS) P1233, P1235, P1237, P0191) AND / OR DRIVEABILITY / TRANSMISSION SHIFTING CONCERNS DUE TO WIRING THAT HAS BECOME CHAFED ON THE TOP OF THE TRANSMISSION PAN OR THE BRACKET THAT SUPPORTS THE CONNECTOR C140. *TT

FORD · 2001-03-01

SOME VEHICLES MAY EXHIBIT A CHECK ENGINE LIGHT ON WITH DIAGNOSTIC TROUBLE CODE P1233, P1235, P1237 (FUEL PUMP DRIVER MODULE). *TT

FORD · 2001-03-01

SOME VEHICLES MAY EXHIBIT A HARD START, DIAGNOSTIC TROUBLE CODE P1233 AND / OR P1414, RIGHT FRONT EXTERIOR LIGHTING, TURN LAMP ERRATIC AND ANTI-LOCK BRAKE WARNING LAMP ON. *TT

FORD · 1999-05-01

CONDITIONS WITH A HARD START OR DIAGNOSTIC TROUBLE CODE (DTC) P1233. *TT