PCM - MIL ON/ DTC P0421 Set
Bulletin No.: 020-97Issued: 10/10/97
Revised:
Category
F
Applicable Model/s
1996 626/MX-6 With FS Eng. ATX
Subject:
MIL ILLUMINATION
NOTE:
This bulletin supercedes Category F, No. 016/97.
APPLICABLE MODELS
1996 626/MX-6 with a FS engine and LA4A-EL automatic transaxle.
DESCRIPTION
The MIL may illuminate while driving with DTC P0421 stored in the PCM memory.
Customers complaining of this concern should have the vehicle inspected for this and other DTC(s). If no other DTC(s) are present, the vehicle's PCM should be reprogrammed according to this bulletin.
Do Not replace the catalytic converter or monitor the O2 sensors until after the PCM reprogramming repair has been performed.
NOTE:
Dealers should contact the Technical Hotline for repeat P0421 problems.
REPROGRAMMING SETUP PROCEDURE
1. Remove front console trim and disconnect connector to access PCM.
2. Connect NGS tester to the Bench Reprogramming Kit 49G0-88-004.
^ Connect the 3 pronged plug from the External Power Supply 49G0-88-004 to a standard AC outlet.
^ Connect the connector cable from the the External Power Supply to the NGS tester power connector.
^ Connect the 104-pin Bench Reprogramming cable 49G0-88-002 to the NGS Diagnostic Link and VPWR jacks.
^ Connect the 104-pin connector from the 104-pin Bench Reprogramming cable 49G0-88-002 to the PCM.
3. Insert the PC card 49G0-88-003.
REPROGRAMMING PROCEDURE
1. Select PCM Reprogramming on the NGS tester and press Trigger.
2. Follow the prompts on the NGS tester to reprogram the PCM.
3. After reprogramming, connect the PCM and install front console. Refer to section S of the workshop manual.
4. Erase DTCs loaded to PCM memory during automatic KOEO Self Test.
5. Verify repair.
6. List the date, dealer number and service bulletin number on the Authorization Label and install the label on the radiator support.
NOTE:
This label informs technicians of the PCM change if future repairs are necessary.
DETAILED REPROGRAMMING PROCEDURES ARE INCLUDED
WARRANTY INFORMATION
(Applies To Verify Customer Complaints On Vehicles Covered Under Normal Warranty. Refer To The SRT Microfiche For Warranty Term Information).
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