O2 Sensor Readiness Monitor Does Not Complete (L-SB-0027-15)
Publication date: 2015-07-10Reference number: L-SB-0027-15
O2 SENSOR READINESS MONITOR DOES NOT COMPLETE
TECHNICAL SERVICE BULLETIN
Reference Number(s): L-SB-0027-15, Date of Issue:
July 10, 2015
| LEXUS: | 2007 RX400H |
| SERVICE CATEGORY: | Engine/Hybrid System |
| SECTION: | Emission Control |
| COPYRIGHT: | © 2018 Lexus, a division of Toyota Motor Sales, USA License Agreement TMS1002 |
APPLICABILITY
APPLICABILITY
| YEAR(S) | MODEL(S) | ADDITIONAL INFORMATION |
|---|---|---|
| 2007 | RX400H |
INTRODUCTION
Some 2007 model year RX 400h vehicles may exhibit a condition of oxygen sensor readiness monitors incomplete during state emissions testing. The Hybrid Vehicle (HV) ECU logic has been updated to address this condition.
PRODUCTION CHANGE INFORMATION
This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs shown below.
PRODUCTION CHANGE INFORMATION
| MODEL | DRIVETRAIN | PRODUCTION CHANGE EFFECTIVE VIN |
|---|---|---|
| RX 400h | 2WD | JTJGW31U#72003519 |
| 4WD | JTJHW31U#72020196 |
WARRANTY INFORMATION
WARRANTY INFORMATION
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| EG1502 | Reprogram HV ECU and ECM (PCM) | 0.8 | 89981-##### | 99 | 74 |
APPLICABLE WARRANTY
- This repair is covered under the Lexus Federal Emission Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle's in-service date.
- Warranty application is limited to occurrence of the specified condition described in this bulletin.
PARTS INFORMATION
PARTS INFORMATION
| MODEL YEAR | DRIVETRAIN | OIL COOLER | PART NUMBER | PART NAME | QTY | |
|---|---|---|---|---|---|---|
| PREVIOUS | NEW | |||||
| 2007 | 2WD | With | 89981-48160 89981-48161 |
89981-48162 89981-48163 |
Computer, Hybrid Vehicle Control | - |
| Without | 89981-48180 89981-48181 |
89981-48182 89981-48183 |
||||
| 4WD | With | 89981-48190 89981-48191 |
89981-48192 89981-48193 |
|||
| Without | 89981-48200 89981-48201 |
89981-48202 89981-48203 |
||||
| All | All | All | 00451-00001-LBL | Authorized Modification Labels | 1 | |
NOTE:
- The HV ECU should NOT be replaced as part of this Repair Procedure.
- Authorized Modification Labels may be ordered in packages of 25 from the Materials Distribution Center (MDC) through Dealer Daily - Dealer Support Materials Orders .
REQUIRED TOOLS & EQUIPMENT
REQUIRED TOOLS & EQUIPMENT
| REQUIRED EQUIPMENT | SUPPLIER | PART NUMBER | QTY | ||
|---|---|---|---|---|---|
| Techstream 2.0(1) | ADE | TS2UNIT | 1 | ||
| Techstream Lite | TSLITEPDLR01 | ||||
|
|||||
NOTE:
- Only ONE of the Techstream units listed above is required.
- Software version 10.10.018 or later is required.
- Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787.
- The Diagnostic Tester is NOT recommended for flash reprogramming. Please use Techstream or an approved J2534 interface to perform flash reprogramming updates. Visit techinfo.toyota.com
for more information regarding J2534 reprogramming.
REQUIRED TOOLS & EQUIPMENT
| SPECIAL SERVICE TOOLS (SST) | PART NUMBER | QTY | ||
|---|---|---|---|---|
| GR8 Battery Diagnostic Station(1) | 00002-MCGR8 | 1 | ||
|
||||
NOTE:
Additional SSTs may be ordered by calling 1-800-933-8335.
CALIBRATION ID INFORMATION
NOTE:
There are different calibration files for vehicles with and without transaxle oil coolers. In order to determine the configuration of your vehicle, shine a flashlight into the left front bumper cover vent. If the vehicle is equipped with a cooler, it will be easily visible.
CALIBRATION INFORMATION
CALIBRATION INFORMATION
| MODEL YEAR | DRIVETRAIN | OIL COOLER | ECM (CPU)/ECU | CALIBRATION ID | |
|---|---|---|---|---|---|
| PREVIOUS | NEW | ||||
| 2007 | 2WD | With | Main | 348A0000 | 348A0100/899834813100 |
| Sub | 899834813000 | ||||
| Without | Main | 348A0000 | 348A0100/899834814100 | ||
| Sub | 899834814000 | ||||
| 4WD | With | Main | 348A0000 | 348A0100/899834815100 | |
| Sub | 899834815000 | ||||
| Without | Main | 348A0000 | 348A0100/899834816100 | ||
| Sub | 899834816000 | ||||
REPAIR PROCEDURE
- Prepare the vehicle for reflash.NOTE: This procedure will pressurize the brake actuator and prevent the ABS pump from running during the reflash procedure.
- Prior to vehicle shut down perform the following steps:
- Place the vehicle in the ready on position.
- Place the transaxle in the P range.
- Engage parking brake.
- Depress the brake pedal fully 2 times within 2 seconds.
- Release brake pedal.
- Wait 10 seconds.
- Turn off the vehicle.
- Prior to vehicle shut down perform the following steps:
- Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 2. Confirm if the HV ECU and ECM (PCM) calibrations have been updated. If the calibration IDs are NOT the new calibrations - go to step 2.
- Flash Reprogram the HV ECU and 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 Instruction Manual located on the Technical Information System (TIS), Diagnostics - Tools & Equipment - Battery Diagnostics .
Follow the procedures outlined in Service Bulletin No. L-SB-0021-14 , "Techstream ECU Flash Reprogramming Procedure," and flash the ECM (PCM) with the NEW calibration file update.
NOTE:- Anytime the HV ECU is reprogrammed, the engine ECM (PCM) MUST also be reprogrammed, even if the engine ECM (PCM) has the "New Calibration ID."
- If ONLY the engine ECM (PCM) Calibration ID matches the "Current Calibration ID" shown in the CALIBRATION INFORMATION section in this bulletin, proceed with flash reprogramming.
- If BOTH the engine ECM (PCM) and HV ECU Calibration IDs match the "New" calibration IDs shown in the CALIBRATION INFORMATION section, this vehicle has already been reprogrammed. Refer to TIS for diagnostic procedures applicable to any stored DTCs.
- Start the engine and warm it up to normal operating temperature before test driving.
- Test drive the vehicle to confirm proper vehicle operation (and proper laser cruise control operation, if equipped).
- Confirm that the O2 Sensor monitor reads complete.
- Install the Authorized Modifications Label.
- Using a permanent marker, enter the following information on the label:
- ECM part number [Refer to the PARTS INFORMATION section for the NEW PART NUMBER]
- Calibration ID(s) [Refer to the CALIBRATION INFORMATION section for the NEW CALIBRATION ID]
- Dealer Code
- Repair Date
- Change Authority [This bulletin number]
- Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 2. The Authorized Modifications Label is available through the MDC, P/N 00451-00001-LBL.
- Using a permanent marker, enter the following information on the label:
- Calibration update is complete.NOTE: The effect of the NEW calibration may become more apparent after several days of driving as the ECM (PCM) "learned values" are re-established from the customer's driving.