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• MODEL SELECTION INDEX
• VT SERIES II - COMMODORE, CALAIS SERVICE INFORMATION
• SECTION 12J-2 - HIGH SERIES BODY CONTROL MODULE
  • 1. GENERAL DESCRIPTION
    • BODY CONTROL MODULE FEATURES
    • HIGH SERIES BCM TERMINAL IDENTIFICATION
    • 1.1 BATTERY SAVER MODE
      • PRE-DELIVERY MODE.
    • 1.2 SERIAL DATA COMMUNICATION(BUS MASTER)
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - SERIAL COMMUNICATION
      • INPUTS / OUTPUTS
      • INPUTS
    • 1.3 CENTRAL DOOR LOCKING SYSTEM
      • GENERAL INFORMATION
      • SYSTEM CHECK
    • 1.4 THEFT DETERRENT SYSTEM
      • GENERAL INFORMATION
      • SYSTEM OPERATION
      • SYSTEM OVERVIEW - THEFT DETERRENT
      • CIRCUIT OPERATION
    • 1.5 ENTRY DETERRENT SYSTEM
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - ENTRY DETERRENT
    • 1.6 POWER WINDOW SYSTEM
      • GENERAL INFORMATION
      • SYSTEM CHECK
      • SYSTEM OVERVIEW - POWER WINDOWS
      • CIRCUIT OPERATION
      • OPENING WINDOW - DRIVER'S DOOR
      • CLOSING WINDOW
    • 1.7 ENGINE COOLING FAN LOW SPEED CONTROL
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - ENGINE COOLING FAN, LOW SPEED CONTROL
      • CIRCUIT OPERATION
      • LOW SPEED FAN OPERATION
    • 1.8 AUTOMATIC LIGHTS OFF (WITHOUT TWILIGHT SENTINEL)
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - AUTOMATIC LIGHTS OFF
      • CIRCUIT OPERATION
    • 1.9 AUTOMATIC LIGHT CONTROL -LIGHTS ON AND OFF / APPROACH ILLUMINATION (WITH TWILIGHT SENTINEL)
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - AUTOMATIC LIGHTS ON / APPROACH ILLUMINATION
      • CIRCUIT OPERATION
    • 1.10 ROAD SPEED DEPENDENT VARIABLE DWELL WIPER SYSTEM
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - ROAD SPEED DEPENDENT VARIABLE DWELL WIPERS
    • 1.11 SPEED SENSITIVE POWER STEERING
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - SPEED SENSITIVE POWER STEERING
      • CIRCUIT OPERATION
    • 1.12 DOME LAMP DELAY CONTROL
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - DOME LAMP DELAY
      • CIRCUIT OPERATION
    • 1.13 INSTRUMENT DIMMING CONTROL
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - INSTRUMENT DIMMING CONTROL
      • CIRCUIT OPERATION
    • 1.14 PRIORITY KEY SYSTEM
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - PRIORITY KEY
    • 1.15 SRS DEPLOYMENT VEHICLE SHUTDOWN
      • GENERAL INFORMATION
      • SYSTEM OVERVIEW - SRS VEHICLE SHUTDOWN
  • 2. SERVICE OPERATIONS
    • 2.1 HIGH SERIES BCM
      • REMOVE & REINSTALL
      • BCM LINK TO PCM/PIM
    • 2.2 DOOR LOCK MICROSWITCHES
    • 2.3 VEHICLE SPEED SENSOR
      • MANUAL TRANSMISSION
      • AUTOMATIC TRANSMISSION
  • 3. TECH 2 DIAGNOSIS FOR BCM
    • 3.1 BASIC KNOWLEDGE REQUIRED
    • 3.2 CONNECTING TECH 2
    • 3.3 TECH 2 TEST MODES AND DISPLAYS FOR BCM DIAGNOSIS
      • F0: NORMAL MODE
      • F1: DIAGNOSTIC TROUBLE CODES
      • F2: DATA DISPLAY
      • F3: SNAPSHOT
      • F4: MISCELLANEOUS TESTS
      • F5: PROGRAM
      • F6: SECURITY
  • 4. DIAGNOSIS
    • 4.1 PREREQUISITES TO DIAGNOSIS AND TROUBLESHOOTING
      • PRELIMINARY SYSTEM REQUIREMENTS
      • SAFETY REQUIREMENTS
      • CHECKING EQUIPMENT
      • KEY READER CIRCUIT DIAGNOSIS
    • 4.2 SERIAL DATA COMMUNICATION
    • 4.3 CENTRAL DOOR LOCKING
    • 4.4 THEFT DETERRENT
    • 4.5 ENGINE COOLING FAN LOW SPEED CONTROL
    • 4.6 AUTOMATIC LIGHTS OFF (WITHOUT TWILIGHT SENTINEL)
    • 4.7 AUTOMATIC LIGHT CONTROL - LIGHTS ON AND OFF / APPROACH ILLUMINATION (WITH TWILIGHT SENTINEL)
    • 4.8 SPEED SENSITIVE POWER STEERING
    • 4.9 DOME LAMP DELAY CONTROL
    • 4.10 INSTRUMENT DIMMING CONTROL
    • 4.11 CRUISE CONTROL INTERFACE
    • 4.12 REAR LAMP FAILURE WARNING SYSTEM
    • 4.13 POWER ANTENNA CONTROL
    • 4.14 ROAD SPEED DEPENDENT VARIABLE DWELL WIPER SYSTEM
    • 4.15 PRIORITY KEY SYSTEM
    • 4.16 SRS DEPLOYMENT VEHICLE SHUTDOWN
    • 4.17 REMOTE RECEIVER/KEY
    • 4.18 ENTRY DETERRENT
    • 4.19 BOOT RELEASE
    • 4.20 POWER WINDOW SYSTEM