Canada - Engine Control - MIL ON DTC P0751 Set

Bulletin
TSB2752

Issue Date
December 7, 2009

Title
MIL "ON" DTC P0751

Component
ENGINE ELECTRICAL

Models
'07-'09 SC430

INTRODUCTION:

Some 2007-2009 model year SC430 vehicles may exhibit a MIL "ON" condition with DTC P0751 stored (Shift Solenoid "A" Performance). DTCs P2714 or P0894 may also be stored.

The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) detection logic for DTC P0751 has been revised to prevent false detection of P0751 and erroneous MIL "ON".

Follow the repair procedure below to determine if recalibration of the ECM (PCM) is required

REPAIR PROCEDURE OVERVIEW:
- Confirm stored DTCs and verify vehicle condition matches this bulletin.
- Verify calibration ID to determine if this repair has already been performed.
- Update ECM (PCM) calibration.






APPLICABILITY:






WARRANTY INFORMATION:






PARTS INFORMATION:






CALIBRATION IDENTIFICATION CHART:






REQUIRED TOOLS & EQUIPMENT:

REPAIR PROCEDURE:

1. Using ETAS Techstream, check for DTC(s) stored in the ECM (PCM).
2. Confirm that DTC P0751 (Shift Solenoid "A" Performance - Shift Solenoid S1) is stored as a current DTC.
3. Check the Freeze Frame Data for each DTC stored to confirm which DTC(s) set first.










HINT
The DTC that is stored first will have 5 frames of Freeze Frame Data stored (see Figures 1 and 2).

Does P0751 have 5 frames of Freeze Frame Data?
- YES - Go to step 4.
- NO - This TSB does NOT apply. Refer to the Repair Manual and follow diagnostics for the first stored or primary DTC (the DTC with 5 frames of Freeze Frame Data).

4. Clear all codes and test drive vehicle. Monitor vehicle during test drive and confirm if abnormal shifting or a MIL "ON" occurs.
Did abnormal shifting occur or did a MIL turn "ON" during the test drive?
- YES - This TSB does NOT apply. Use Techstream to confirm DTCs and follow Repair Manual diagnostic method for primary DTC, or refer to the Repair Manual for diagnostic method based on shifting abnormality observed during the test drive.
- NO - Go to step 5.

5. Refer to the Health Check information in Techstream and confirm if the CAL ID matches the "Previous Calibration ID" or "New Calibration ID" listed in the Calibration Information chart in this TSB.
Does the calibration ID in the ECM (PCM) match the New Calibration ID listed in this TSB?
- YES - The recalibration in this bulletin has been previously performed.Refer to the Repair Manual for diagnosis.
- NO - This TSB applies. Go to step 6 for the ECM (PCM) reprogramming process.






6. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 3. Confirm if the ECM (PCM) calibration has been updated. If the calibration ID listed is NOT the latest ECM (PCM) calibration - go to step 7.

REPAIR PROCEDURE B:
7. Flash Reprogram the ECM (PCM).

NOTE
- The GR8 Battery Diagnostic Station MUST be used in Power Supply Mode to maintain battery voltage at 13.5 volts while flash reprogramming the vehicle.
- For details on how to use the GR8 Battery Diagnostic Station, refer to the GR8 Battery Diagnostic Station Instruction Manual located on ETAS/TIS library > Tools > tools and equipment > GR8 Battery Diagnostic Station Instruction Manual.

Follow the procedures outlined in TSB No.2401 "Techstream ECU Flash Reprogramming Procedure", and flash the ECM (PCM) with the NEW calibration file update.

8. Install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:
- ECM part number [Refer to the Parts Information section for the CURRENT PART NUMBER]
- Calibration ID(s) [Refer to the Calibration Identification Chart for the NEW CALIBRATION ID]
- Dealer Code
- Repair Date
- Change Authority [This TSB number]

B. Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 4. The Authorized Modifications Label is available through your facing PDC, P/N 00451-00001-25.

9. Start the engine and warm it up to normal operating temperature before test driving.
10. Test drive the vehicle to confirm normal operation.

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.