1Fuel Supply & ME-SFI Engine Management Tip Start & DAS(Part 13)508 HO Part 13 Tip start & DAS (WJB) 04-01-01更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s2These technical training materials are current as of the date noted on the materials, and may be revised or updated without notice. Always check for revised or updated information.To help avoid personal injury to you or others, and to avoid damage to the vehicle on which you are working, you must always refer to the latest Mercedes- Benz Technical Publication and follow all pertinent instructions when testing, diagnosing or making repair. Illustrations and descriptions in this training reference are based on preliminary information and may not correspond to the final US version vehicles. Refer to the official introduction manual and WIS when available. Copyright Mercedes- Benz USA, LLC, 2000Reproduction by any means or by any information storage and retrieval system or translation in whole or part is not permitted without written authorization from Mercedes- Benz USA, LLC or its successors. Published by Mercedes- Benz USA, LLC Printed in U. S.A.更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s3Start CriteriaIn this program we will cover two basic functions that are required to start the vehicle. DAS (2b & 3) - Drive Authorization System Tip start更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s4DAS ComparisonYear/Model1998 170/129/140/1631998 210/208/202/220/2 15/203 DAS systemDAS 2bDAS 3 Triggered bytransponder in keymicro-processor in key Signal typeinductively coupled RFIRAuthorization checked byRFL (N54/3) AAM/DAS (163)EIS (N73)Unauthorized start resultNo fuel may crank brieflyNo fuel ignition switch locked, steering or shifter locked (chassis dependent)更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s5DAS 2bAll of the keys include Transponder chipsMaximum of 8 (active) keys per vehicle.更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s6Key CodingKey 1Variable Code Key 2Variable Code Key 3Variable Code Key 4Variable Code Key 5Variable Code Key 6Variable Code Key 7Variable Code Key 8Variable Code更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s7DAS 2bRF AntennaN54 DAS control moduleFuel ECMPSEFlasherrelay(M-Class varies slightly)更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s8M-Class(As of MY 2000)N10/1 EAMN10/1-n1 instead of N54Immobilizer更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s9Immobilizer- Transponder coilin Ignition LockEngine ECU(N3)Driveaway InterlockSystemTransponder KeyEngine-CAN-BusEAM/DAS Function (N10/1)/(N10/1-n1) Immobilizing functionEAM (N10/1)DAS (N10/1-n1)更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s10Diagnosing Starting Problems: Note: Pay attention to the red LED on the dash and the odometer readout!SymptomsPossible causeSituation # 1NO LED flash “Start error” in odometer Engine may crankKey transponder or DASIf engine starts OK with different key,then the key is defective. If there is no fault memory, Immobilizer or EAM (N10/1)are suspect.更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s11Diagnosing Starting Problems: Note: Pay attention to the red LED on the dash and the odometer readout!SymptomsPossible causeSituation # 2No LED flash No message in odometer No engine crankingCAN defect更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s12Diagnosing Starting Problems: Note: Pay attention to the red LED on the dash and the odometer readout!SymptomsPossible causeSituation # 3LED does flash “Start error” in odometer Engine will crankME system or open circuit 50 to ME (N3)更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s13Diagnosing Starting Problems: Note: Pay attention to the red LED on the dash and the odometer readout!SymptomsPossible causeSituation # 4LED does flash No message in odometer No engine crankingME system without power更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s14Diagnosing Starting Problems: Note: Pay attention to the red LED on the dash and the odometer readout!SymptomsPossible causeSituation # 5LED does flash No message in odometer Engine will crank? 更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s15DAS 3The electronics in the key include: a radio transmitter an infrared unit for central locking an infrared unit for DAS更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s16Electronic Ignition Switch (EIS N73)Inductive coil to power keyKey rotating coil更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s17DAS IR SignalAuthentication Test更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s18DAS FunctionCAN1. Key authorized 2. Steering unlocked4. Start authorizedEIS (N73)ESL (N26/5)ME (N3/)3. Key rotation allowed更多免费资源请登陆 8848汽车技术论坛h t t p :/w w w .v w 8848.c o m /b b s19DAS Function (215, 220)CAN-C215 & 220 chassisEIS (N73)ME (N3/)Electronic Selector Lever Module (ESM - N15