Engine Controls - MIL ON/DTC's P0170/P0173/P2097/P2099
No.: LTB00071Issue: 3
Date: 13 May 2008
THIS BULLETIN REPLACES JTB00071 ISSUE 2, DATED 05 OCT 2007. CHANGES ARE HIGHLIGHTED WITH GRAY BACKGROUND.
SECTION: 419
"MIL" Illumination with P-Codes P0170/0173/2097/2099 or P0461 - Repair Procedure
AFFECTED VEHICLE RANGE (ECM ONLY)
AFFECTED VEHICLE RANGE (ECM & TCM)
CONDITION SUMMARY:
MIL ON WITH DTC P0170/0173/2097/2099 AND/OR P0461 STORED
Situation:
The Malfunction Indicator Lamp (MIL) may illuminate. Upon investigation with IDS the Diagnostic Trouble Codes (DTC) P0170/P0173 and/or P0461 may be stored. (NOTE: For later engine calibrations the codes P2097/P2099 replace P0170/P0173.) Over-sensitive Engine Control Module (ECM) calibrations can result in P0170/P0173 (P2097/P2099) when the HO2 sensor heater turns off too early. Also the code P0461 may be stored if the ECM has observed a fuel sender accuracy issue. The P0461 code should not be a "MIL-on" requirement and that condition is adjusted with the latest software.
Action:
Should a customer express concern, re-configure the ECM. Depending on vehicle VIN also program the Transmission Control Module (TCM) using Integrated Diagnostic System (IDS). Follow the Repair Procedure instructions in this bulletin.
TOOLS
WARRANTY:
NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.
DDW requires the use of casual part numbers. Labor only claims must show the causal part number with a quantity of zero.
REPAIR PROCEDURE
UPDATE ECM AND IF REQUIRED TCM SOFTWARE
CAUTION:
This procedure requires IDS DVD108 Patch File 1 software or later.
CAUTION:
A Midtronics PSC-550 Vehicle Power Supply must be connected to the vehicle battery during diagnosis.
1. Connect the Midtronics PSC-550 power supply to the vehicle battery.
2. Connect IDS to the vehicle and begin a new diagnostic session, by entering the correct VIN for the current vehicle.
3. When prompted 'Do you wish to read diagnostic trouble codes?', select 'Yes'.
4. Press 'tick' to continue and follow all on-screen instructions to complete this task.
5. Select 'Vehicle Configuration' then 'Module Programming'.
6. From the menu select 'Configure Existing Modules' and then select and run 'Engine Control Module'.
7. Follow all on-screen instructions to complete this task.
8. If the vehicle is in the later VIN ranges listed in the Affected Vehicle section, perform the following to update the TCM:
^ Select and run 'Transmission Control Module'.
^ Follow all on-screen instructions to complete this task.
9. When the program update tasks are completed, exit the current session.
10. Disconnect IDS and the battery charger/power supply.