Specifications

vi
Table of Contents
Types of Climate Control Systems.................................................................................42
Important Tips for Testing Climate Control Systems......................................................42
IHKA Special Features...................................................................................................43
IHKA Substituted Values................................................................................................44
Testing Bus Systems............................................................................................................44
Bus Types ......................................................................................................................45
Testing Central Body Electronics (ZKE) Systems ................................................................53
ZKE III and GM III ..........................................................................................................54
Testing Antitheft (DWA) Systems.........................................................................................55
Testing Immobilizer (EWS) Systems....................................................................................56
EWS I.............................................................................................................................56
EWS II............................................................................................................................56
Chapter 5: Data Parameters ..............................................................................................66
Engine Parameters...............................................................................................................72
Transmission Parameters.....................................................................................................94
Climate Control Parameters .................................................................................................96
Appendix A: Terms and Acronyms.................................................................................101
Terms .................................................................................................................................101
Acronyms............................................................................................................................101
Appendix B: Frequently Asked Questions.....................................................................114
What is a data bus?............................................................................................................114
How many bus systems are there on a late model BMW?.................................................115
How does a module communicate on a bus?.....................................................................115
Are all modules on a bus the same or do some have special tasks?.................................115
Appendix C: Electronic Control Module Coding and Programming ...........................116
Coding vs. Programming....................................................................................................116
Car and Key Memory Coding .............................................................................................116
DME Variant Coding (Bosch Engine Control Modules) ......................................................117
Central Coding (ZCS).........................................................................................................117
Important Tips Regarding ZCS Coding ..............................................................................117
Appendix D: Identification Plates ...................................................................................118
Engine Identification Plates ................................................................................................118
Transmission Identification Plates ......................................................................................121
Index ..................................................................................................................................122