SP18-35J
Service Bulletin Details
Public Details for: SP18-35J
P20EE (diagnostic troubleshooting code) solution - nox conversion efficiency. Revision j - range of applicable vins updated.
Models from 2019
| 2019 PREVOST H3 |
| 2019 PREVOST H3-41 |
| 2019 PREVOST H3-45 |
| 2019 PREVOST H3-45 VIP |
| 2019 PREVOST H3-VIP |
| 2019 PREVOST X3 |
| 2019 PREVOST X3-45 |
| 2019 PREVOST X3-45 VIP |
| 2019 PREVOST X3VIP |
Models from 2018
| 2018 PREVOST H3-41 |
| 2018 PREVOST H3-45 |
| 2018 PREVOST H3-45 VIP |
| 2018 PREVOST H3-VIP |
| 2018 PREVOST X3 |
| 2018 PREVOST X3-45 |
| 2018 PREVOST X3-45 VIP |
| 2018 PREVOST X3VIP |
| 2018 PREVOST XL2 |
Models from 2017
| 2017 PREVOST H3-41 |
| 2017 PREVOST H3-45 |
| 2017 PREVOST H3-45 VIP |
| 2017 PREVOST H3-VIP |
| 2017 PREVOST X3 |
| 2017 PREVOST X3-45 |
| 2017 PREVOST X3-45 VIP |
| 2017 PREVOST X3VIP |
| 2017 PREVOST XL2 |
SP18-35J Special Bulletin Date Expiration 11.2018 Revision: J Range of applicable VINs updated Release Page 10 1(12) 09/23/2022 P20EE (diagnostic troubleshooting code) SOLUTION - NOX CONVERSION EFFICIENCY Prevost vehicles B13R (9700 us/can) MODEL YEAR(S) AND VEHICLES INVOLVED GHG17 or OBD18 compliant vehicles NOTICE TO SERVICE CENTERS Verify vehicle eligibility by checking warranty bulletin status with SAP or via ONLINE WARRANTY SYSTEM available on Service / Warranty tab of Prevost website. H3-41, H3-45 coaches Model Year: 2017 - 2019 H3-45 VIP motorhomes Model Year: 2017 - 2019 X3-45 coaches Model Year: 2017 - 2019 X3-45 coaches Model Year: 2017 - 2019 X3-45 VIP commercial use Model Year: 2017 - 2019 X3-45 VIP motorhomes Model Year: 2017 - 2019 VOLVO 9700 Model Year: 2017 - 2019 Writer: EL 2PCH33492HC713670 and From 2PCH33494HC713735 up to 2PCH33490KC710466 incl. 2PCVS3495HC713507 and From 2PCVS3493HC713747 up to 2PCVS3496KC720585 incl. From 4RKG33491H9737417 up to 4RKG33499K9737575 incl. 2PCG3349XHC736092 2PCG33490HC736117 2PCG33495HC736114 and From 2PCG33490HC736182 up to 2PCG33494KC736404 incl. 2PCCS3493HC736145 and From 2PCCS3495HC736180 up to 2PCCS3499KC736433 incl. except 2PCCS3498KC736407 From 3CET2V927H5184392 up to 3CET2V926K5194709 incl.SP18-35J Special Bulletin Date Expiration Release Page 10 2(12) 11.2018 DESCRIPTION For the vehicles on which a notification for SP18-35 exists, perform the following checklist and operations. It has been determined that these vehicles had the code (DTC) P20EE activated. DO NOT perform this special bulletin on a specific vehicle unless a notification exists, otherwise, no reimbursement will be awarded. You can request a vehicle to be notified, to do so, send a request to the Technical Publications functional mailbox: [email protected] and include a screen capture of diagnostic troubleshooting codeP20EE. MATERIAL Part required Part No. Description Qty 22677399 GASKET, DEF INJECTION NOZZLE 1 21376801 SEALING PLATE 1 22677399 21376801 NOTE Material can be obtained through regular channels. Other parts that may be required. Note that these parts are not covered by this bulletin. Part No. Description Qty 22303390 NOx SENSOR, PRE 1 22303391 NOx SENSOR, POST 1 Writer: EL SP18-35J Special Bulletin Date 11.2018 Expiration Release Page 10 3(12) DANGER Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button. On Commuter type vehicles, set the battery master switch (master cut-out) to the OFF position. IMPORTANT NOTES DO NOT perform WB18-04 or WB18-84 EMS & ACM SOFTWARE UPDATE before the following checklist, otherwise useful diagnostic codes and monitor data could be erased. Wb18-04 for Prevost coaches, Wb18-84 for Volvo 9700 Any troubleshooting labor of active DTCs (Diagnostic Troubleshooting Codes) other than P20EE is considered as a separate operation of the RO (repair order) and cannot be charged to this special bulletin. Perform the steps in the same order as they appear. If this recommendation is not followed, required diagnostic information might not be recoverable after the software update. Writer: EL SP18-35J Special Bulletin Date Expiration 11.2018 Release Page 10 4(12) Vehicle identification H3 X3 9700 V.I.N (short) : ̶ OPERATIONS TO BE PERFORMED IN ADVANCE BY THE SERVICE ADVISOR Ask the customer whether he/she noticed an abnormal consumption of oil or coolant. Search all relevant information concerning the aftertreatment system or severe turbo failure in the history of repairs of the vehicle and record. Attach to the repair order. Also check if SP18-35 has already been performed on that particular coach. If this is the case, do not perform SP1835 once again, contact the Technical Publications for instructions. You can send a message to the Technical Publications functional mailbox: [email protected] NOTE/RESULTS: Writer: EL SP18-35J Special Bulletin Date Expiration Release Page 10 5(12) 11.2018 # checklist 1 Before performing any engine ECM software update, connect PTT and check the diagnostic codes related to EMS and ACM. INITIALS & DATE Confirm that code P20EE is present (whether active or inactive). Take a screen capture of the DTCs and save for submittal. Is the code P20EE present? YES NO COMMENTS/RESULTS: 2 Before performing any engine ECM software update, take a screen capture of the five most recent SCR efficiency evaluations and save for submittal. • Test screen 2589‐08‐03‐05 on PTT with software version prior to 2.8 • Operation 25846-3 option D on PTT with newest software version (see next image) OPERATION 25846-3 OPTION D ON PTT WITH NEWEST SOFTWARE VERSION Writer: EL SP18-35J Special Bulletin Date Expiration 11.2018 Release Page 10 6(12) Example of SCR efficiency evaluations COMMENTS/RESULTS: 3 Check if there are leaks at the Charge Air Cooler (soapy water test). Check if there are leaks of EGR, exhaust gas (between turbo and SCR converter). Note any presence of soot. Any repair is considered as a separate operation of the RO (repair order) and cannot be charged to this special bulletin. Note: Try to clear exhaust clamps while keeping in mind the state of the insulating blankets to avoid damages because the heat can make them fragile over time. Leaks were found? YES NO COMMENTS/RESULTS: 4 Check and record the engine ECU (a.k.a. Engine Control Module ECM) software number. To do so, check in the dashboard DID. Select DIAGNOSTICS > PART NUMBER > ENGINE ECU Engine ECU software number: _ COMMENTS/RESULTS: 5 Engine ECU (a.k.a. Engine Control Module ECM) software update. Writer: EL SP18-35J Special Bulletin Date Expiration 11.2018 Release Page 10 7(12) If the engine ECU software is not up to date, perform an update to the latest version (software version should be 23766686 or higher). COMMENTS/RESULTS: 6 Remove DEF doser, perform the dosing test (operation 25846-3 option B) and record the results below. Expected values: small dosing: 49 - 60 ml Dosing amount: small large dosing: 196 - 240 ml ml large _ ml COMMENTS/RESULTS: 7 Test the concentration of DEF and record the result below. Tool: refractometer # 88890105. Is the DEF of proper concentration? Writer: EL YES NO SP18-35J Special Bulletin Date Expiration 11.2018 Release Page 10 8(12) COMMENTS/RESULTS: 8 Check inside the pipe downstream of the DEF injector for any accumulation of solid (crystallized) DEF, attach pictures of crystal accumulations if applicable. Reinstall the DEF injector with two new seals. NOTE: A small amount of crystal accumulation is normal. Is there significant/excessive DEF crystal buildup? YES NO COMMENTS/RESULTS: Writer: EL SP18-35J Special Bulletin Date Expiration 11.2018 9 Release Page 10 9(12) Perform the Exhaust aftertreatment system analysis (operation 25065-3) Take a screen capture of the Test result (image below) and save for submittal. COMMENTS/RESULTS: Writer: EL SP18-35J Special Bulletin Date Expiration Release Page 10 10(12) 11.2018 10 Authorization for the replacement of the SCR converter An analysis of this checklist with the comments/results must be done in order to allow the replacement of the SCR converter. Scan and send this checklist with all the relevant documents, screen captures, etc. to the Technical Publications functional mailbox: [email protected] Please indicate in the “subject line”: SP18-35 and the short V.I.N. below… as in the example COMMENTS/RESULTS: Writer: EL SP18-35J Special Bulletin Date Expiration 11.2018 Release Page 10 11(12) PARTS / WASTE DISPOSAL Discard waste according to applicable environmental regulations (Municipal/State [Prov.]/ Federal) WARRANTY This diagnostic is covered by Prevost’s normal warranty. We will reimburse you the parts and labor upon receipt of a warranty claim according to the following: PARTS COVERED BY THIS BULLETIN 22677399 DEF injection nozzle gasket Qty: 1 21376801 sealing plate Qty: 1 Any other parts such as parts installed to correct exhaust leaks or for the replacement of sensors cannot be charged to this bulletin. These are covered by the normal warranty when applicable and must be charged on a different operation. LABOR COVERED BY THIS BULLETIN The time allowed to complete this bulletin in its entirety is 2.25 hours This allowed time covers the execution of the procedure described in this document only. Any corrective work such as replacing the DEF injector, correcting exhaust leaks or any diagnostic work of active DTCs codes other than P20EE is considered a separate operation on the repair order and cannot be charged to this special bulletin. Please submit claim via our Online Warranty System, available at www.prevostcar.com (under Service \ Warranty section). Use Claim Type: “Bulletin/Recall” and select ‘’Warranty Bulletin SP18-35 ". Writer: EL SP18-35J Special Bulletin Date 11.2018 Expiration Release Page 10 12(12) OTHER VBC Bulletin N/A Fail Code 04.04-1 Defect Code 9 Syst. Cond B Causal Part 21970125 Access all our Service Bulletins on http://techpub.prevostcar.com/en/ or scan the QR-Code with your smart phone. Prevost engages in a continuous program of testing and evaluating to provide the best possible product. Prevost, however, is not committed to, or liable for updating existing products. Writer: EL