CX-7 L4-2.3L Turbo (2007)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine Controls - MIL ON/DTC P2407 Set
TSB: 01-037/06
2006 MAZDA5 2006 MX-5 2006 MAZDASPEED6 2007 CX-7 - MIL COMES ON WITH DTC P2407 (LDP SENSOR ERRATIC)
APPLICABLE MODEL(S)/VINS
2006 Mazda5 vehicles with VINS lower than JM1CR**** ** 133076 (produced before July 29, 2006)
2006 MX-5 vehicles with VINS lower than JM1 NC**** ** 126070 (produced before August 7, 2006)
2006 Mazdaspeed6 vehicles with VINs lower than JM1GG**** ** 108267 (produced before August 2, 2006)
2007 CX-7 vehicles with VINs lower than JM3ER**** ** 129357 (produced before August 3, 2006)
DESCRIPTION
Some vehicles may experience MIL comes on with DTC P2407 in memory. This symptom is due to abnormal current in the LDP sensor which exceeds
the threshold of DTC P2407. The design specification does not meet the market need, so the PCM software has been changed to resolve the concern.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1.
Reboot the PDS/IDS to clear memory before reprogramming.
2.
Using PDS/IDS 44.4 or later software, reprogram the PCM to the latest calibration (refer to "Calibration Information" table) by following the
"Module Reprogramming" procedure.
NOTE:
^
Always update the PDS/IDS tool first, then follow on-screen instructions to download the needed calibration file for PCM reprogramming.
^
It is not necessary to remove any fuses or relays during PCM reprogramming when the PDS/IDS screen prompts you to do so. You may
accidentally stop power to one of the PCM terminals and cause the PCM to be blanked, or you may receive error messages during the
PDS/IDS reprogramming procedure.
^
PDS/IDS shows the calibration part numbers after programming the PCM.
^
Please be aware that PCM calibration part numbers and file names listed in any Service Bulletin may change due to future releases of
PDS/IDS software, and additional revisions made to those calibrations for service related concerns.
^
When reprogramming a PCM, PDS/IDS will always display the "latest" calibration P/N available for that vehicle. If any calibration has
been revised/updated to contain new information for a new service concern/issue, it will also contain all previously released calibrations.
^
When performing this procedure, we recommend that a battery charger be installed on the vehicle battery and turned ON to a maximum
charge of no more than 20 AMPS to keep the vehicle battery up to capacity. If you exceed 20 AMPS, it could damage the VCM.
3.
After performing the PCM reprogramming procedure, verify the repair by starting the engine and making sure there are no MIL illumination or
abnormal warning lights present.
NOTE:
^
If any DTCs should remain after performing DTC erase, diagnose the DTCs according to the appropriate Troubleshooting section of the
Workshop Manual.
^
After PCM reprogramming, it is no longer necessary to road test the vehicle to "relearn" KAM (Keep Alive Memory).
