L-SB-0048-23
Service Bulletin Details
Public Details for: L-SB-0048-23
Tsb: some 2023 model year rx 350 vehicles equipped with a t24a-fts engine may exhibit a mil on condition with diagnostic trouble code (dtc) P05CE00 (cold start ?B? Camshaft position timing performance bank 1). The engine control module (ecm
- 2023 -
Models from 2023
2023 LEXUS RX |
L-SB-0048-23 October 13, 2023 MIL ON With DTC P05CE00 Service Category Vehicle Interior Section Meter/Gauge/Display Market USA Applicability YEAR(S) MODEL(S) ADDITIONAL INFORMATION 2023 RX350 VDS(s): BAMBA, BAMCA, CHMAA Engine(s): T24 Introduction Some 2023 model year RX 350 vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P05CE00 (Cold Start “B” Camshaft Position Timing Performance Bank 1). The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition. Warranty Information OP CODE DESCRIPTION TIME OFP T1 T2 EL2314 Reprogram the ECM (PCM) 0.7 89661-OEK###* 8A 74 *Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter. APPLICABLE WARRANTY This repair is covered under the Lexus Federal Emissions 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. Draft - Confidential © 2023 Lexus, a division of Toyota Motor Sales, USA Page 1 of 4 L-SB-0048-23 October 13, 2023 Page 2 of 4 MIL ON With DTC P05CE00 Parts Information PART NUMBER PART NAME QTY 89661-0EK00 Computer, Engine Control – NOTE The ECM (PCM) should NOT be replaced as part of the Repair Procedure. Required Tools & Equipment SPECIAL SERVICE TOOLS (SST) PART NUMBER QTY Battery Diagnostic Tool DCA-8000P_T 1 *Essential SST. NOTE Additional SSTs may be ordered by calling 1-800-933-8335. REQUIRED EQUIPMENT SUPPLIER Techstream ADVI* PART NUMBER TSADVUNIT Techstream 2.0 TS2UNIT ADE 1 Techstream Lite TSLITEPDLR01 Techstream Lite (Green Cable) TSLP2DLR01 *Essential SST. NOTE Only ONE of the Techstream units listed above is required. GTS+ software version 2023.03.002.02 or later is required. Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787. Use Techstream or an approved J2534 interface to perform flash reprogramming updates. Visit techinfo.toyota.com for more information regarding J2534 reprogramming. Draft - Confidential QTY © 2023 Lexus, a division of Toyota Motor Sales, USA L-SB-0048-23 October 13, 2023 Page 3 of 4 MIL ON With DTC P05CE00 Calibration Information CALIBRATION ID MODEL YEAR MODEL ENGINE DRIVE TYPE PREVIOUS RX 350 (CBU) FWD 2023 T24A-FTS RX 350 (NA) 4WD 8A2224825000 8A2224825100 8A2224825200 8A2220E10000 8A2220E10100 8A2220E10200 8A222-0E11000 8A222-0E11100 8A222-0E11200 NEW 8A2224825300 8A2220E10300 8A2220E11300 Repair Procedure 1. Confirm the condition exists. Does the vehicle exhibit a MIL ON condition with DTC P05CE00 (Cold Start “B” Camshaft Position Timing Performance Bank 1) present? YES — Continue to step 2. NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual. 2. Use GTS+ to confirm if the ECM (PCM) calibration has been updated. Is the calibration ID listed in GTS+ the latest ECM (PCM) calibration? YES — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual. NO — Continue to step 3. Draft - Confidential © 2023 Lexus, a division of Toyota Motor Sales, USA L-SB-0048-23 October 13, 2023 Page 4 of 4 MIL ON With DTC P05CE00 Repair Procedure (continued) 3. Flash reprogram the ECM (PCM). NOTE The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage at 13.5V while flash reprogramming the vehicle. For details on how to use the battery diagnostic station, refer to the DCA-8000 Instruction Manual located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics. Follow the procedures outlined in L-SB-0036-22 GTS+ECU Flash Reprogramming Procedure With Security Signature, and flash the ECM (PCM) with the NEW calibration file update. 4. Clear ANY DTCs and test-drive the vehicle in accordance with the driving pattern described in the confirmation driving pattern to confirm the condition is no longer present. Refer to TIS, applicable model and model year Repair Manual: 2023 RX 350: Engine/Hybrid System – Engine Control – “T24A-FTS (Engine Control): SFI System (for Gasoline Model): P001400, P001500, P05CE00; Camshaft Position “B” – Timing Over-advanced or System Performance Bank 1” Draft - Confidential © 2023 Lexus, a division of Toyota Motor Sales, USA