Canada - Engine Control - MIL ON P0300-P0306 Harsh 2-3 Shift
Bulletin
0560
Issue Date
2002-11-07
Market
Canada
Reference
EE-02-002
Model
GS300, IS300
Year Range
2002
Component
EE
Subject:
ECM CALIBRATION UPDATE: M.I.L. "ON" DTC P0300-P0306 OR HARSH 2-3 SHIFT DURING ACCELERATION
Under certain driving conditions, some 2002 GS300 and IS300 vehicles equipped with an automatic transmission may exhibit one or both of these conditions:
1. MIL "ON" with DTC P0300 - P0306 (random or any single cylinder misfire) may be recorded after certain driving conditions and a cold engine start.
2. Harsh 2-3 shift during acceleration with light throttle input.
Revised ECM calibration files have been developed for engine and transmission ECM to improve these conditions.
APPLICABLE VEHICLES: 2002 model year GS300 & IS300 equipped with automatic transmission produced BEFORE the VIN shown below.
PRODUCTION CHANGE INFORMATION:
ECM CALIBRATION NUMBER INFORMATION:
PARTS INFORMATION:
TOOLS & MATERIALS QUANTITY:
GS300 REPAIR PROCEDURE:
Verify Vehicle Condition (GS300)
1. Is complaint "Harsh 2 3 shift under light acceleration"?
If YES - go to Step 6
If NO - go to Step 2
2. Connect the Diagnostic Tester to the DLC3 connector.
3. Retrieve Freeze Frame data for P0300 - P0306 (any misfire code)
4. Verify that Freeze Frame data was recorded shortly after engine start at low temperature by confirming "COOLANT TEMP" reads less than 120°F (49°C) and "ENG RUN TIME" shows less than 120 seconds
If YES - go to step 6
If NO - go to step 5
5. If Freeze Frame data recorded the engine at operating temperature (above 71°C/160°F) or with "ENGINE RUN TIME" above 120 seconds, diagnose DTC (P0300 - P0306) using the vehicle Repair Manual.
6. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 1. Confirm if ECM (PCM) calibration has been updated. If not latest ECM (PCM) calibration - go to step 7.
7. Connect the Diagnostic Tester to the vehicle and select CURRENT ECU CAL from the ECU REPROGRAM MAIN MENU. Determine the vehicle's current ECU calibration. (See Figure 2)
NOTE:
- If Calibration ID for both engine and transmission matches "Previous Calibration ID" as shown, proceed with flash reprogramming.
- If Calibration ID for both engine and transmission matches "New Calibration ID" as shown, this vehicle has already been reprogrammed. Refer to Repair Manual for Diagnosis.
8. If ECU calibration ID is not "New Calibration ID" proceed to Flash Reprogram ECM (GS300).
Flash Reprogram ECM (GS300)
1. Remove the relay for the electric fan (See Figure 3)
2. Remove the 3 relays for the ABS/VSC system (See Figure 4)
3. Follow the procedures outlined in TSB 0435, Ref. GI-01-014 "ECU Flash Reprogramming Process" dated March 16, 2001and flash the ECM with new "Main" and "Sub" calibration file updates.
NOTE:
- "Main" calibration file update (Calibration ID 33035200) should be installed first
- "Sub" calibration file update (Calibration ID 53023100) should be installed after "Main" calibration file update is installed
4. Enter the required information on the Authorized Modifications Label and affix it to the vehicle at the location shown in Figure 1. The Authorized Modifications Label is available through the PDC, P/N 00451-00001-25.
5. Reinstall the electric fan relay (See Figure 3 above).
6. Reinstall the 3 relays for ABS/VSC system (see Figure 4 above ).
7. Use the Diagnostic tester to delete any ABS/VSC DTCs that may have been set during this repair procedure.
8. Calibration update is complete.
IS300 & IS300 SPORTCROSS REPAIR PROCEDURE:
Verify Vehicle Condition (IS300 & IS300 Sportcross)
1. Is complaint "Harsh 2-3 shift under light acceleration"?
If YES - go to Step 6
If NO - go to Step 2
2. Connect the Diagnostic Tester to the DLC3 connector.
3. Retrieve Freeze Frame data for P0300 - P0306 (any misfire code).
4. Verify that Freeze Frame data was recorded shortly after engine start at low temperature by confirming "COOLANT TEMP" reads less than 120°F (49°C) and "ENG RUN TIME" shows less than 120 seconds
If YES - go to step 6
If NO - go to step 5
5. If Freeze Frame data recorded the engine at operating temperature (above 71°C/160°F) or with "ENGINE RUN TIME" above 120 seconds, diagnose DTC P0300 - P0306 using the vehicle Repair Manual.
6. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 5. Confirm if ECM calibration has been updated. If not latest ECM calibration - go to step 7.
7. Connect the Diagnostic Tester to the vehicle and select CURRENT ECU CAL from the ECU REPROGRAM MAIN MENU. Determine the vehicle's current ECU calibration. (See Figure 2)
NOTE:
- If Calibration ID for both engine and transmission matched "Previous Calibration ID" as shown, proceed with flash reprogramming
- If Calibration ID for both engine and transmission matched "New Calibration ID" as shown, this vehicle has already been reprogrammed. Refer to Repair Manual for Diagnosis.
8. If ECU calibration ID is not "New Calibration ID" proceed to Flash Reprogram ECM (IS300 & IS300 Sportcross).
Flash Reprogram ECM (IS300 & IS300 Sportcross)
1. Disconnect the 2 connectors for the electric fans (See Figure 6).
2. Follow the procedures outlined in TSB 0435, Ref. GI-01-014, "ECU Flash Reprogramming Process" dated March 9, 2001and flash the ECM with new "Main" and "Sub" calibration file updates.
NOTE:
"Main" calibration file update (Calibration ID 35302200 or 35308200 (Sportcross) should be installed first. "Sub" calibration file update (Calibration ID 55301100 or 55307100 (Sportcross) should be installed after "Main" calibration file update is installed.
3. Enter the required information on the Authorized Modifications Label and affix it to the vehicle at the location shown in Figure 5. The Authorized Modifications Label is available through the PDC, P/N 00451-00001-25
4. Reconnect the 2 electric fan connectors disconnected in step 1 (Figure 6).
5. Calibration update is complete.
REPAIR TIME:
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.