Lancer LS L4-2.0L SOHC (2002)
PROM - Programmable Read Only Memory: Customer Interest
Engine Controls - MIL ON/DTC P0507 Set
No: TSB-03-13-009
DATE: December, 2003
MODEL: 2002-03 Lancer
SUBJECT:
PCM REPROGRAMMING FOR DTC P0507
This TSB supercedes TSB-02-13-006, issued March, 2002, which should be discarded.
This TSB includes all 2002 and 2003 Lancer models, a new PCM update software, and MUT-III reprogramming instructions.
PURPOSE
Incorrect PCM software parameters may cause Diagnostic Trouble Code (DTC) P0507 to set in the PCM and turn on the "SERVICE ENGINE SOON"
light. Reprogramming the PCM as described in this bulletin will eliminate this condition.
If the vehicle was already reprogrammed with the previous database (as described in TSB-02-13-006), DTC P0507 could incorrectly re-set under certain
driving conditions. The vehicle must be reprogrammed again using the new reprogramming database in this TSB.
For details on reprogramming with the MUT-III scan tool, refer to TSB-03-00-015.
AFFECTED VEHICLES
2002 and 2003 Lancer models (EXCEPT Evolution)
PROCEDURE
CAUTION
BATTERY VOLTAGE (AS MEASURED AT THE BATTERY POSTS WITHOUT ELECTRICAL LOAD) MUST BE 12.4V OR HIGHER IN
ORDER TO REPROGRAM THE PCM.
1.
Using the MUT-III scan tool, check to see if any DTCs are set in the PCM.
If any DTC is set, follow the appropriate DTC troubleshooting and repair instructions in the service manual.
2.
Use the MUT-III to erase all DTCs set in the PCM.
3.
Turn the ignition key to OFF and disconnect the MUT-III.
4.
Gather the following reprogramming equipment:
