Engine Controls - Tests W/Codes - Body Control Computer

• Introduction
• Description
• Operation
  • Body Control Computer
  • CCD Bus System
  • Compass/Temperature Module
  • Electronic Vehicle Information Center (EVIC)
  • Electronic Instrument Cluster (EIC)
  • Engine Compartment Node
  • Light Outage Module
  • Mechanical Instrument Cluster (Mic)
  • Overhead Travel Information System (OTIS)
  • Traveler Module
  • Vehicle Theft Security System (VTSS)
    • Notes
    • Initialization & Verification
    • Manual Override Mode & Tamper Alert Mode
    • Power-Up Mode
    • Self-Diagnostic Mode
• Self-Diagnostic System
  • Notes
  • Body Control Computer Tests
  • Pretest Inspection
• Diagnostic Procedure
  • Notes
  • Introduction
  • Entering On-Board Diagnostics
  • Clearing DTCS
  • Scan Tool Problems & Error Messages
• Connector Identification
  • Body Control System Connectors
• Self-Diagnostic Tests
  • Notes
  • Test 1A - Identifying Vehicle Equipment & System Problems
  • Test 2A- Chime System Problems
  • Test 3A - No Chimes At All
  • Test 4A - Chime Operates With Seat Belt Buckled
  • Test 5A - Chime Operates With Key Out Of Ignition
  • Test 5B - Shorted Key In Ignition Circuit
  • Test 6A - No Chime With Key Out, Exterior Lamps On & LF Door
  • Test 7A - No Chime With Ignition Off, Key In Ignition & LF
  • Test 7B - Open Key In Ignition Circuit
  • Test 8A - No Chime With Seat Belt Unfastened & Key On For 6
  • Test 9A - No Chime With Turn Signals On
  • Test 9B - Left Turn Signal Circuit
  • Test 9C - Right Turn Signal Circuit
  • Test 10A - Compass/Temperature Module Problems
  • Test 11A - Compass/Temperature Module Blank Display
  • Test 12A - Compass/Temperature Module Vacuum Fluorescent
  • Test 13A - Compass/Temperature Module Illumination
  • Test 14A - Compass Direction Reading
  • Test 15A - Ambient Temperature Reading
  • Test 15B - Engine Node
  • Test 15C - Shorted Ambient Temperature Sensor Circuit
  • Test 15D - Open Ambient Temperature Sensor Circuit
  • Test 16A - Courtesy Lamp Systems
  • Test 17A - Courtesy Lamps Inoperative
  • Test 17B - Shorted Courtesy Lamp Power Circuit
  • Test 17C - Courtesy Lamps Inoperative
  • Test 18A - Individual Courtesy Lamp
  • Test 19A - Courtesy Lamp Dash Switch
  • Test 20A - Courtesy Lamp On At All Times
  • Test 21A - Open Left Door Ajar Circuit
  • Test 21B - Shorted Left Door Ajar Circuit
  • Test 22A - Open Right Door Ajar Circuit
  • Test 22B - Shorted Right Door Ajar Circuit
  • Test 23A - Electronic Instrument Cluster (EIC) Problems
  • Test 24A - Electronic Instrument Cluster (EIC) Diagnostic
  • Test 25A - Electronic Instrument Cluster (EIC) Switch Malfunction
  • Test 26A - Instrument Cluster Problems Not Covered By Trouble Codes
  • Test 27A - Temperature Gauge Problems
  • Test 28A - Electronic Instrument Cluster (EIC) Odometer/Speedometer Failure
  • Test 29A - Identifying Faulty Warning Lamp
  • Test 30A - Brake Warning Lamp & Parking Brake Switch Problems
  • Test 30B - Brake Warning Lamp & Brake Pressure Switch Problems
  • Test 30C - Brake Warning Lamp & Brake Pressure Switch Problems
  • Test 31A - Seat Belt Warning Lamp Problem
  • Test 32A - Dimming Interior Displays
  • Test 32B - Dimming Interior Displays
  • Test 32C - Dimming Interior Displays
  • Test 32D - Dimming Interior Displays
  • Test 32E - Dimming Interior Displays
  • Test 32F - Dimming Interior Displays
  • Test 32G - Dimming Interior Displays
  • Test 32H - Dimming Interior Displays
  • Test 33A - Identifying Electronic Vehicle Information Center (EVIC) Problems
  • Test 34A - EVIC Panel Warning Messages
  • Test 35A - Blank EVIC Panel Message Screen
  • Test 35B - Blank EVIC Panel Message Screen
  • Test 36A - EVIC Panel Switch Test
  • Test 36B - EVIC Panel Switch Test
  • Test 37A - Brake Lamp Out Message
  • Test 38A - Missing Brake Lamp Out Message
  • Test 39A - Right Brake Lamp Out
  • Test 40A - Left Brake Lamp Out
  • Test 41A - Faulty Brake Lamp Out Message
  • Test 42A - Faulty Coolant Level Low Message
  • Test 43A - Faulty Low Oil Message
  • Test 44A - Engine Temp High Or Engine Temp Critical
  • Test 45A - Exterior Lamps On
  • Test 46A - Faulty Fasten Seat Belt Message
  • Test 47A - Right Headlamp Out
  • Test 47B - Left Headlamp Out
  • Test 48A - Key In Ignition Message
  • Test 49A - Low Brake Fluid
  • Test 50A - Headlamp Out Message But Headlamps Operational
  • Test 51A - Park Brake Engaged
  • Test 52A - Tail Lamp Out
  • Test 53A - Right Tail Lamp Out
  • Test 54A - Left Tail Lamp Out
  • Test 55A - Trunk Ajar
  • Test 56A - Washer Fluid Low
  • Test 57A - Turn Signal On
  • Test 57B - Turn Signal On
  • Test 58A - Tail Lamp Out
  • Test 59A - Both Headlamps Out
  • Test 59B - Headlamp Power Feed
  • Test 59C - Headlamp Power Feed
  • Test 60A - All BRAKELAMPS Out & No Message
  • Test 60B & No Message - All BRAKELAMPS Out
  • Test 60C - All BRAKELAMPS Out & No Message
  • Test 61A - Right BRAKELAMP Out
  • Test 62A - Left BRAKELAMP Out
  • Test 63A - All TAILLAMPS Out
  • Test 63B - All TAILLAMPS Out
  • Test 64A - EVIC Illumination Dimming
  • Test 65A - Identifying Headlamp Time Delay Problems
  • Test 66A - Headlamps Will Not Turn Off
  • Test 67A - Headlamps Will Not Turn On
  • Test 68A - Illuminated Entry System
  • Test 68B - Left Door Illuminated Entry Switch
  • Test 68C - Right Door Illuminated Entry Switch
  • Test 69A - Illuminated Entry Inoperative With Both Doors
  • Test 69B - Illuminated Entry Inoperative With Both Doors
  • Test 70A - Illuminated Entry Inoperative With RKE
  • Test 71A - Key-In Lamp Circuit
  • Test 72A - Inoperative Key-In Lamp
  • Test 73A - Key-In Lamp On Constantly
  • Test 74A - Mechanical Instrument Cluster Warning Lamp Problems
  • Test 75A - Seat Belt Lamp Problem
  • Test 75B - Open Seat Belt Lamp Circuit
  • Test 75C - Shorted Seat Belt Lamp Circuit
  • Test 76A - Low Fuel Lamp Circuit
  • Test 76B - Shorted Low Fuel Lamp Circuit
  • Test 76C - Open Low Fuel Lamp Circuit
  • Test 77A - Check Gauges Lamp Problem
  • Test 77B - Open Check Gauges Lamp Circuit
  • Test 77C - Short To Ground In Check Gauges Lamp
  • Test 78A - Identifying Auto Door Lock Problem
  • Test 79A - Both Doors Fail To Lock & Unlock From EITHERSWITCH
  • Test 79B - Both Doors Fail To Lock & Unlock From Either Switch
  • Test 80A - Both Doors Fail To Lock & Unlock From One Switch
  • Test 81A - Both Doors Fail To Lock From Either Switch
  • Test 81B - Both Doors Fail To Lock From Either Switch
  • Test 81C - Both Doors Fail To Lock From Either Switch
  • Test 82A - Both Doors Fail To Lock From One Switch
  • Test 83A - Both Doors Fail To Unlock From Either Switch
  • Test 84A - Both Doors Fail To Unlock From One Switch
  • Test 85A - One Door Fails To Lock & Unlock From One Switch
  • Test 86A - Door Lock Inhibit System
  • Test 87A - Speed Sensitive Auto Door Lock System
  • Test 88A - Identifying Power Door Lock & Remote Keyless Entry (RKE) Problem
  • Test 89A - Both Doors Fail To Lock & Unlock From Either Switch
  • Test 90A - Both Doors Fail To Lock & Unlock From One Switch
  • Test 91A - Both Doors Fail To Lock From Either Switch
  • Test 92A - Both Doors Fail To Lock From One Switch
  • Test 93A - Both Doors Fail To Unlock From Either Switch
  • Test 94A - Both Doors Fail To Unlock From One Switch
  • Test 95A - Left Front Door Fails To Lock & Unlock From Any Switch
  • Test 96A - Left Front Door Fails To Lock From Any Switch
  • Test 97A - Left Front Door Fails To Lock From Any Switch
  • Test 98A - Left Front Door Fails To Lock & Unlock From Any Switch
  • Test 99A - Right Front Door Fails To Lock
  • Test 100A - Right Front Door Fails To Unlock
  • Test 101A - Remote Keyless Entry System
  • Test 102A - Identifying CCD Radio Problems
  • Test 102B - CCD Radio Diagnostic Trouble Codes
  • Test 102C - Shorted (L) Channel
  • Test 102D - Shorted (R) Channel
  • Test 102E - Antenna Error
  • Test 103A - Radio No Response Condition
  • Test 103B - Radio No Response Condition
  • Test 104A - No Sound From One Speaker
  • Test 104B - No Sound From One Speaker
  • Test 104C - No Sound From One Speaker
  • Test 105A - No Sound From All Speakers
  • Test 106A - Poor Sound Quality From One Speaker
  • Test 107A - Noise Distortion From One Speaker
  • Test 108A - Identifying Traveler Problems
  • Test 109A - Traveler Blank Message Display
  • Test 110A - Traveler Displays F1-1
  • Test 111A - Traveler Vacuum Fluorescent Display Problem
  • Test 112A - Traveler Buttons
  • Test 113A - Traveler Elapsed Time (ET)
  • Test 114A - Traveler Distance Or Mileage Problem
  • Test 115A - Traveler Illumination Problem
  • Test 116A - Intermittent Wiper/Washer Problem
  • Test 117A - Intermittent Wiper Problem
  • Test 117B - Intermittent Wiper Problem
  • Test 118A - Washer Pump Problem
  • Test 118B - Washer Pump Problem
  • Test 119A - Wiper Problem During Wash Cycle
  • Test 120A - Wiper Park Switch
  • Test 121A - Faulty Fuel Level Sending Unit
  • Test 122A - Faulty Oil Gauge/Pressure Problem
  • Test 122B - Faulty Oil Pressure Problem
  • Test 123A - Body Control Module No Response
  • Test 124A - Electronic Instrument Cluster (EIC) No Response
  • Test 124B - Electronic Instrument Cluster (EIC) No Response
  • Test 125A - Electronic Vehicle Information Center (EVIC) Panel No Response
  • Test 126A - Traveler Module No Response
  • Test 127A - Compass/Temperature Module No Response
  • Test 128A - Engine Node No Response
  • Test 129A - Powertrain Control Module No Response
  • Test 130A - Repairing Scan Tool Blank Screen
  • Test VER-1 - Verification Procedure
• Vehicle Communications Tests
  • Notes
  • Test 1A - Trouble Codes
  • Test 2A - Blank Scan Tool Message Screen
  • Test 3A - Ram Test Failure
  • Test 4A - Cartridge Error
  • Test 5A - Key Pad Test Failure
  • Test 6A - Low Or High Battery
  • Test 7A - Bus Short To Battery
  • Test 7B - Bus Short To Battery
  • Test 7C - Bus Short To Battery
  • Test 7D - Bus Short To Battery
  • Test 7E - Bus Short To Battery
  • Test 7F - Bus Short To Battery
  • Test 7H - Bus Short To Battery
  • Test 8A - Bus Short To 5 Volts
  • Test 8B - Bus Short To 5 Volts
  • Test 8D - Bus Short To 5 Volts
  • Test 8E - Bus Short To 5 Volts
  • Test 8F - Bus Short To 5 Volts
  • Test 8G - Bus Short To 5 Volts
  • Test 8J - Bus Short To 5 Volts
  • Test 9A - Bus Short To Ground
  • Test 9B - Bus Short To Ground
  • Test 10A - Bus (+) & Bus (-) Shorted Together
  • Test 11A - No Termination
  • Test 11D - No Termination
  • Test 12A - Bus Bias Level Or Bus (+/-) Open
  • Test 12D - Bus Bias Level Or Bus (+/-) Open
  • Test 12G - Bus Bias Level Or Bus (+/-) Open
  • Test 13A - No Bus Bias
  • Test 13D - No Bus Bias
  • Test 13K - No Bus Bias
  • Test 14A - Not Receiving Bus Messages Correctly
  • Test VER-1 - Verification Procedure