Engine Controls - Tests W/Codes - Body Control Computer

• Introduction
  • Body Identification
• Description
• Operation
  • Body Control Computer
  • CCD Bus System
  • Compass/Temperature Monitor
  • Electronic Vehicle Information Center (EVIC)
  • Electronic Instrument Cluster
  • Engine Compartment Node
  • Light Outage Module
  • Mechanical Instrument Cluster
  • Overhead Travel Information System (OTIS)
  • Traveler Module
  • Vehicle Theft Security System
    • Notes
    • Initialization & Verification
    • Manual Override Mode & Tamper Alert Mode
• Self-Diagnostic System
  • Notes
  • Pretest Inspection
• Diagnostic Procedure
  • Notes
  • Introduction
  • DRB Key Functions
  • Entering On-Board Diagnostics
    • Notes
    • VEHICLES TESTED Mode
    • HOW TO USE Mode
    • CONFIGURE Mode
    • SELECT SYSTEM Mode
    • SELECT MODULE Menu
    • DRB Volt-Ohmmeter Mode
    • DRB Continuity Meter Mode
  • DRB Problems & Error Messages
• Connector Identification
  • Body Control System Connectors
• Self-Diagnostic Tests
  • Notes
  • Test 1A - Identifying Vehicle Equipment & System Problems
  • Test 1B - Identifying Trouble Codes
  • Test 2A - Identifying Instrument Cluster Problems
  • Test 2B - Instrument Cluster Gauge Problem
  • Test 2C - Repairing Instrument Cluster Power Supply
  • Test 2D - Repairing Instrument Cluster Ignition Supply
  • Test 3A - Repairing Instrument Cluster Sense Circuits
  • Test 3B - Repairing Instrument Cluster Sense Circuits
  • Test 4A - Diagnosing Warning Lamp Problems
  • Test 4B - Repairing Instrument Cluster Printed Circuit Board
  • Test 4C - Repairing Communication W/ Trans CNTRL Module
  • Test 5A - Diagnosing Instrument Cluster Illumination Problem
  • Test 5B - Repairing PRKNG Lamp SW Output CKT For Short To GND
  • Test 5C - Repairing PRKNG Lamp SW Output CKT For Short To Batt
  • Test 5D - Repairing Parking Lamp Switch Power Supply
  • Test 5E - Repairing Open Panel Lamps Driver Circuit
  • Test 5F - Diagnosing Parking Lamp Switch
  • Test 5G - Repairing PRKNG Lamp SW Output CKT For Short To GND
  • Test 6A - Repairing Instrument Cluster Temperature Gauge
  • Test 7A - Repairing Faulty Gauge
  • Test 8A - Repairing Fuel Gauge Warning Lamp
  • Test 8B - Repairing Fuel Gauge Warning Lamp
  • Test 8C - Repairing Fuel Gauge Warning Lamp
  • Test 9A - Repairing Faulty Speedometer
  • Test 10A - Repairing Oil Press SW Sense CKT For Short To GND
  • Test 10B - Repairing Open Oil Pressure Switch Sense Circuit
  • Test 11A - Repairing Seat Belt Switch CKT For Short To Ground
  • Test 12A - Repairing Open Seat Belt Switch Circuit
  • Test 13A - Diagnosing Parking Brake Warning Lamp
  • Test 13B - Repairing Open Brake Fluid Level Switch Circuit
  • Test 13C - Repairing Open Parking Brake Switch Circuit
  • Test 13D - Repairing Open Parking Brake Switch Circuit
  • Test 14A - Repairing Shorted Parking Brake Circuit
  • Test 15A - Diagnosing Overhead Travel Information SYS (OTIS)
  • Test 15B - OTIS Screen Blank
  • Test 15C - Testing OTIS Switches
  • Test 15D - Testing OTIS Mileage & Distance Functions
  • Test 15E - Repairing OTIS Ambient Temperature Sensor
  • Test 26A - Diagnosing Wiper System Problems
  • Test 26B - Repairing Wiper Switch, Controller & Power Supply
  • Test 26C - Wiper Switch Mode Sense Circuit
  • Test 26D - Wiper Motor Output Circuit Short
  • Test 27A - Repairing Low Speed (On/Off) WPR MTR RLY & CNTRLS
  • Test 28A - Inoperative Wiper Motor Low Speed
  • Test 29A - Wiper Switch Power Supply
  • Test 30A - Wiper Switch Power Supply Short To Ground
  • Test 31A - Wiper Motor High Speed Operation
  • Test 31B - Wiper Motor Does Not Shut Off
  • Test 32A - Wiper Motor Low Speed Operation
  • Test 32B - Wiper Motor Does Not Switch Between High & Low
  • Test 32C - Wiper Motor Does Not Switch Between High & Low
  • Test 32D - Wiper Motor Low Speed Operation
  • Test 33A - Wiper Motor Intermittent Speed Operation
  • Test 33B - Wiper Motor On/Off Wiper Relay Control Circuit
  • Test 33C - Open Park Switch Sense Circuit
  • Test 33D - Wiper Motor Control Circuit
  • Test 33E - Windshield Wiper Switch Signal Circuit
  • Test 34A - Washer Pump Operation
  • Test 34B - Washer Pump Controls
  • Test 35A - Auto Door Lock Problem
  • Test 35B - Repairing Doors Fail To LCK & UNLCK From Any SW
  • Test 35C - Repairing Doors Fail To LCK & UNLCK From Any SW
  • Test 35D - One Door Fails To Lock & Unlock From Any SW
  • Test 35E - All Doors Fail To Lock & Unlock From One SW
  • Test 35F - Repairing Doors Fail To Lock From Any Switch
  • Test 35G - Repairing Shorted Door Lock Switch Circuit
  • Test 35H - Repairing Doors Fail To Unlock From Any Switch
  • Test 35J - Repairing Inoperative Door Lock Inhibit Circuit
  • Test 35K - Diagnosing Automatic Speed Sensitive Door Locks
  • Test 36A - Power Door Lock & Remote Keyless Entry Problem Id
  • Test 36B - Repairing LF Door Fails To LCK & UNLCK From Any SW
  • Test 36C - Repairing Left Front Door Lock Problem
  • Test 36D - LF Door Unlock Problem W/ Remote Keyless Entry
  • Test 36E - All Doors (Exc Left Front) Fail To Lock & Unlock
  • Test 36F - All Doors (Except Left Front) Fail To Lock
  • Test 36G - All Doors (Except Left Front) Fail To Unlock
  • Test 36H - Remote Keyless Entry Problem
  • Test 37A - Diagnosing Message Center
  • Test 38A - Repairing Fluid Lamp Circuit
  • Test 38B - Inoperative Washer Fluid Lamp
  • Test 39A - Door Ajar Lamp Control Circuit
  • Test 40A - Diagnosing Courtesy Lamp Circuit
  • Test 40B - Repairing Courtesy Lamp System & Power Supply
  • Test 41A - Repairing One Inoperative Courtesy Lamp
  • Test 42A - Repairing Courtesy Lamp Inputs
  • Test 43A - Repairing Left Front Door Ajar Circuit
  • Test 43B - Repairing Right Front Door Ajar Circuit
  • Test 43C - Repairing Left Rear Door Ajar Circuit
  • Test 43D - Repairing Right Rear Door Ajar Circuit
  • Test 43E - Open Courtesy Lamp Switch Circuit
  • Test 44A - Shorted Left Front Door Ajar Circuit
  • Test 45A - Shorted RF, RR, & LR Door Ajar CKT
  • Test 46A - Shorted Courtesy Lamp Switch Circuit
  • Test 47A - Inoperative Illuminated Entry
  • Test 47B - Identifying Vehicle Headlamp System
  • Test 48A - Diag Headlamp Delay Problems (W/O Auto Headlamps)
  • Test 48B - Headlamps Will Not Turn Off
  • Test 49A - Headlamp Time Delay Will Not Turn On
  • Test 49B - Headlamp Time Delay Will Not Turn On
  • Test 50A - Headlamp Time Delay Will Not Turn On
  • Test 51A - Identifying Key-In Lamp Problems
  • Test 51B - Repairing Inoperative Key-In Lamp
  • Test 51C - Repairing Key-In Lamp On Constantly
  • Test 52A - Diagnosing Chime System
  • Test 52B - Repairing Chime Inoperative At All Times
  • Test 52C - Repairing Chime Inoperative With External Lamps On
  • Test 52D - Repairing Chime Inoperative W/ Seat BLT Unfastened
  • Test 53A - Repairing BCM No Response Condition
  • Test 54A - Testing Fused Ignition SW Output To BCM
  • Test 55A - Headlamp SYS Problem Id (W/ Auto Headlamp SYS)
  • Test 55B - Headlamp & PRKNG Lamps Inoperative In Auto Mode
  • Test 55C - Repairing Headlamps Inoperative In Auto Mode
  • Test 55D - Repairing Parking Lamps Inoperative In Auto Mode
  • Test 55E - Headlamps & Parking Lamps Do Not Turn Off
  • Test 55F - Parking Lamps Will Not Turn Off
  • Test 55G - Repairing Auto Headlamp Sun Sensor Input Circuit
  • Test 56A - Repairing PWRTRAIN CNTRL Mod No Response Condition
  • Test VER-1 - Verification Procedure
• Vehicle Communications Tests
  • Notes
  • Test 1A - Trouble Codes
  • Test 2A - Blank DRB Message Screen
  • Test 3A - Ram Test Failure
  • Test 4A - Cartridge Error
  • Test 5A - Key Pad Test Failure
  • Test 6A - Low Or High Battery
  • Test 7B - Short To Battery
  • Test 7C - Short To Battery
  • Test 7E - Short To Battery
  • Test 7G - Short To Battery
  • Test 7H - Short To Battery
  • Test 8B - Short To 5 Volts
  • Test 8E - Short To 5 Volts
  • Test 8F - Short To 5 Volts
  • Test 8H - Short To 5 Volts
  • Test 9B - Short To Ground
  • Test 11A - No Termination
  • Test 11C - No Termination
  • Test 12A - Bus Bias Level Or Bus (+/-) Open
  • Test 12C - Bus Bias Level Or Bus (+/-) Open
  • Test 13A - No Bus Bias
  • Test 13C - No Bus Bias
  • Test VER-1 - Verification Procedure
• Wiring Diagrams