1. 1 Copyright © 2008 General Motors Corporation. All Rights Reserved.

2. 2 Body Control and Communication Systems Session 2 Course #18044.17D2 Welcome to

3. 3 The material contained in this course component was accurate and current at the time of course development

4. 4 www.gmtraining.com Web Site

5. 5 Question 1 In which of the following regions is your dealership located? A.Atlanta B.Chicago C.Dallas D.Los Angeles E.New York

6. 6 Upon successful completion of this course, you will be able to apply concepts and applications of body controllers with multiple inputs and outputs, multiplexing, and complex networks in GM automotive applications. Course Goal

7. 7  Diagnose RVS condition  Diagnose No-start condition Session 2 Objectives

8. 8  Review proper module configuration  Review proper RVS operation  Discuss RVS enabling/disabling parameters Module 3 Objectives

9. 9  Module to module interactions  Inputs to modules  Remote start description & operation Module 3 Topics

10. 10 Diagnostic Scenario 2 Vehicle:2006 Impala with 12,000 miles Customer Concern:Remote Start Inoperable

11. 11 RCDLR BCM ECM LOW HIGH Gateway between TDM SERIAL DATA RKE Transmitter

12. 12 Range 60 Meters RCDLR Antenna BCM Starter Relay IGN. Other ECU ’ s B+ Run/Crank relay Hood Switches GMLAN ECM HVAC GMLAN TDM Serial Data

13. 13 Document Numbers 1704081Programming Theft Deterrent System Components 1759118Remote Vehicle Start Inoperative 1749290Symptoms – Keyless Entry 1645896Symptoms - Vehicle 1645895Diagnostic System Check - Vehicle DOCUMENT ID#TITLE

14. 14 What is the first step in diagnosing our customer concern? Question

15. 15 In our preliminary checks, we did not find any concerns. What should our next step be? Question

16. 16 Range 60 Meters RCDLR Antenna BCM Starter Relay IGN. Other ECU ’ s B+ Run/Crank relay Hood Switches GMLAN ECM HVAC GMLAN TDM SERIAL DATA

17. 17  Buttons  Scan tool  Keyless Entry Tester Check Transmitter:

18. 18

19. 19 RVS History

20. 20

21. 21 Module 3 Summary  Proper module configuration  RVS inoperable condition

22. 22 Posttest Question 1 Because of software limitations, RVS CANNOT be attempted more than ___ times without physically cycling the ignition. A.1 B.2 C.3 D.4 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

23. 23 Posttest Question 2 During our preliminary checks (DSC-V), aftermarket devices or components are of no concern. TRUEFALSE 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

24. 24 Posttest Question 3 The first step in diagnosing a Remote Start Vehicle (RVS) concern is to ________________. A.Check the ECM with the Tech 2 B.Verify RVS enabled in PMM C.Verify RVS enabled in RCDLR D.Verify RVS enabled in DIC 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

25. 25 Posttest Question 4 It is possible to go through SPS and reconfigure the TDM to ensure that it is RVS enabled. TRUEFALSE 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

26. 26 Posttest Question 5 Whenever a module is replaced, it is likely the replaced module will require __________. A.SPS Programming B.Software updates C.Flash Memory D.Nothing 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

27. 27  Describe ignition switch operation and modes  Review starting sequence and operation  Review Power Moding principles Module 4 Objectives

28. 28  DSC – V visual Inspection  Power Moding  System operation & wiring schematics Module 4 Topics

29. 29 Diagnostic Scenario 3 Vehicle:2006 Cadillac STS-V with 8,000 miles Customer Concern:Vehicle will not start

30. 30  Loose or corroded battery cables  Open fuses  Low voltage issues DSC-V – Look for:

31. 31  Low voltage could set false DTCs  Check voltage during diagnostics  Voltage could drop quickly  DSC-V could cause voltage drop Battery Voltage Issues

32. 32  Off  Accessory  On/Off  Start STS-V Ignition Switch modes:

33. 33 GMLANGMLAN Power ModingPower Moding SwitchSwitch IPMIPM If no green light – check:

34. 34 Question In the 2006 STS, the ____ functions as the BACKUP Power Mode Master? A.ECM B.IPM C.BCM D.RCDLR

35. 35  Switch inactive  Switch stuck  Start button malfunction  Open/Short circuit fault Power Mode Fault Detection

36. 36 Non-communicating Modules  Amplifier LOW SPEED  DPM LOW SPEED  DDM LOW SPEED  DDS LOW SPEED  DSCC HIGH SPEED

37. 37 Non-communicating Modules cont.  ESC — HIGH SPEED  HUD — LOW SPEED  HCM — LOW SPEED  HVAC — LOW SPEED  IPC — LOW SPEED

38. 38 Non-communicating Modules cont.  LRDM — LOW SPEED  PDM — LOW SPEED  RIM — LOW SPEED  RCDLR — LOW SPEED

39. 39 Non-communicating Modules cont.  RRDM — LOW SPEED  SIR — LOW SPEED  TV/AM — LOW SPEED  VCIM — HIGH/LOW SPEED

40. 40 RPO Code sticker

41. 41 Non-Communicating Tech 2 Screen

42. 42 DMM Pin 5 Ground – Step 8

43. 43 Push/Pull Test – Step 9

44. 44 Pin 22 to DLC Pin 1- Step 10

45. 45 DLC Pin 1 Voltage

46. 46 DLC Pin 1 Resistance

47. 47 We have a lot of modules that are not communicating, but our network seems to be fine. Where do we go next? Question

48. 48 What should we do next? Question

49. 49 Terminal A1 power check

50. 50 Terminal B1 power check

51. 51 R44 Relay Check – Power

52. 52 R43 Relay Check – No Power

53. 53 R23 Terminal Check

54. 54 R22 Terminal Check

55. 55 R21 Terminal Check

56. 56 Power at IPM

57. 57 C1 Pin 6 at IPM

58. 58 Module 4 Summary  Reviewed Power Moding principles  Diagnosed a No Start condition  Corrected the No Start condition

59. 59 Course Summary  Reviewed proper module configuration  Diagnosed and corrected an RVS condition  Diagnosed and corrected a No-start condition

60. 60 Posttest Question 6 If the green light on the start button does not illuminate when attempting to start the vehicle, which of the following could be causing the concern? A.GMLAN shorted/open B.Power Moding C.IPM/PMM D.All of the above 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

61. 61 Posttest Question 7 On vehicles that have several control modules connected by serial data circuits, one module is the _______________. A.GMLAN B.RCDLR C.Class 2 circuit D.Power mode master 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

62. 62 Posttest Question 8 On the Cadillac STS-V the ______ is the PMM. A.ECM B.BCM C.IPM D.RCDLR 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

63. 63 Posttest Question 9 You should repeatedly check voltage during diagnostics because if the voltage drops too low __________. A.the Tech 2 will pull DTCs B.false DTCs could set C.DTCs cannot set D.the PMM will lock out the system 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

64. 64 Posttest Question 10 With Functional Diagnostics, all possible modules will be displayed even if the specific vehicle you are working on is NOT equipped. TRUEFALSE 30 2928272625242322212019181716151413121110 9 8 7 6 5 4 3 2 1 0

65. 65 Session Summary  Explained power moding  Described networked module systems  Explained GMLAN benefits  Diagnosed and programmed a control module

66. 66 Session Summary cont.  Diagnosed RVS condition  Diagnosed No-start condition

67. 67 To Obtain Posttest Results After 5 Business Days go to:  www.gmtraining.com  Select “Training Records” from menu  Select “View Your Training Records”

68. 68 Body Control and Communication Systems Session 2 Course #18044.17D2 Thank you for attending

69. 69 Copyright © 2008 General Motors Corporation. All Rights Reserved.