TABLE OF CONTENTS
1.0 INTRODUCTION .........................................................1
1.1 SYSTEM COVERAGE ...............................................1
1.2 SIX-STEP TROUBLESHOOTING PROCEDURE ..........................1
2.0 IDENTIFICATION OF SYSTEM .............................................1
3.0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION ......................1
3.1 AIRBAG SYSTEM ...................................................1
3.1.1 DRIVER AIRBAG............................................2
3.1.2 CLOCKSPRING.............................................3
3.1.3 PASSENGER AIRBAG .......................................3
3.1.4 SEAT BELT TENSIONERS....................................3
3.1.5 SPECIAL TOOLS............................................3
3.1.6 DIAGNOSTIC TROUBLE CODES ..............................4
3.1.6.1 ACTIVE CODES ............................................4
3.1.6.2 STORED CODES ...........................................4
3.2 COMMUNICATION ..................................................4
3.2.1 COMMUNICATION K-LINES ..................................4
3.2.2 CANBUS..................................................5
3.3 HEATING & A/C SYSTEM ............................................5
3.3.1 AUTOMATIC TEMPERATURE CONTROL (ATC) ..................5
3.3.1.1 SYSTEM CONTROLS........................................5
3.3.1.2 SYSTEM DIAGNOSTICS .....................................5
3.3.2 CABIN HEATER MODULE (CHM) & HEATER BOOSTER MODULE
(HBM).....................................................7
3.3.2.1 SYSTEM DESCRIPTION .....................................7
3.3.2.2 VENTING THE HEATER’S EXHAUST...........................8
3.3.2.3 SYSTEM DIAGNOSTICS .....................................8
3.4 INSTRUMENT CLUSTER.............................................9
3.5 POWER DOOR LOCKS/RKE ..........................................9
3.5.1. CENTRAL LOCKING.........................................9
3.5.2 REMOTE KEYLESS ENTRY (RKE).............................9
3.5.3 AUTO DOOR LOCKS .......................................10
3.5.4 ACCIDENT RESPONSE.....................................10
3.6 VEHICLE THEFT SECURITY SYSTEM (VTSS) ..........................10
3.7 USING THE DRBIIIT ................................................11
3.8 DRBIIIT ERROR MESSAGES.........................................11
3.9 DRBIIIT DOES NOT POWER UP (BLANK SCREEN)......................11
3.10 DISPLAY IS NOT VISIBLE ...........................................11
4.0 DISCLAIMERS, SAFETY, WARNINGS ......................................11
4.1 DISCLAIMERS.....................................................11
4.2 SAFETY ..........................................................11
4.2.1 TECHNICIAN SAFETY INFORMATION .........................11
4.2.2 VEHICLE PREPARATION FOR TESTING.......................12
4.2.3 SERVICING SUB-ASSEMBLIES ..............................12
4.2.4 DRBIIIT SAFETY INFORMATION .............................12
4.3 WARNINGS .......................................................12
4.3.1 VEHICLE DAMAGE WARNINGS ..............................12
4.3.2 ROAD TESTING A COMPLAINT VEHICLE......................12
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