Engine Controls - MIL ON/P0172/P0175
No: LTB00231Issue: 1
Date: 10 SEP 2009
SECTION: 303
Engine MIL Illuminated with DTC P0172 / P0175 Stored - Repair Procedure
AFFECTED VEHICLE RANGE
CONDITION SUMMARY:
Situation:
The engine Malfunction Indicator Lamp (MIL) may be illuminated with Diagnostic Trouble Code (DTC) P0172 / P0175 stored in the Engine Control Module (ECM). This may be caused by particular drive style cycle during low speed maneuvering.
Action:
In the event of a customer concern of the above, refer to the Repair Procedure outlined below to update the Engine Control Module (ECM) software, check the Transmission Control Module (TCM) software, and if necessary update the TCM software.
PARTS:
No parts necessary; information only
TOOLS:
IDS with latest DVD Patch File; software first available on DVD118.5 Patch File 13
Midtronics PSC-550 Vehicle Power Supply
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 causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
REPAIR PROCEDURE
RECONFIGURE ENGINE CONTROL MODULE SOFTWARE
CAUTION:
Ensure all ignition 'ON' / ignition 'OFF' requests are carried out; failure to perform these steps may cause damage to control modules in the vehicle.
CAUTION:
A Midtronics PSC-550 Vehicle Power Supply must be connected to the vehicle battery during diagnosis.
NOTE:
When performing module software updates, if IDS displays 'no update required', select 'tick', then select 'X' in the pop-up window to abort the routine.
1. Connect the Midtronics PSC-550 power supply to the vehicle battery.
NOTE:
IDS must be loaded with software release DVD 118.5 with Patch File 13 or later.
2. Connect the IDS to the vehicle and begin a new diagnostic session by entering the correct VIN for the current vehicle.
3. Follow the IDS prompts to read the vehicle configuration.
4. When prompted 'Do you wish to read diagnostic trouble codes?' select 'No'.
5. Select 'tick' to continue.
6. When Content Model is displayed, select the 'Vehicle Configuration' tab.
7. From the Vehicle Configuration menu, configure the ECM by selecting: 'Module programming' > 'Configure existing module' > 'Petrol powertrain control module'.
8. Follow all on-screen instructions until IDS displays the current and proposed software levels.
^ If 'Software update required' is displayed, select 'tick' to reconfigure the ECM, following all on-screen instructions to complete this task.
^ If 'No update required' is displayed select 'tick', then select 'X' in the pop-up window to abort the routine; exit the current session.
9. When completed, IDS will return to the Vehicle Configuration menu.
CHECK TRANSMISSION CONTROL MODULE SOFTWARE; RECONFIGURE IF NECESSARY
1. From the Vehicle Configuration menu, verify the TCM software by selecting: 'Module programming' > 'Configure existing module' > 'Transmission control module'.
2. Select 'tick' to continue.
3. Follow all on-screen instructions until IDS displays the current and proposed software levels.
^ If 'Software update required' is displayed, select 'tick' to reconfigure the TCM, following all on-screen instructions to complete this task.
^ If 'No update required' is displayed select 'tick', then select 'X' in the pop-up window to abort the routine; exit the current session.
4. When completed, IDS will return to the Vehicle Configuration menu.
5. Exit the current session.
6. Disconnect IDS and the Midtronics PSC-550 Vehicle Power Supply from the vehicle.