Engine Controls - Tests W/Codes - 3.9L/5.2L

• Introduction
• Model Identification
• Self-Diagnostic System
  • Notes
  • System Diagnostics
    • Notes
    • Hard Failures
    • Intermittent Failures
  • Service Precautions
  • Visual Inspection
  • Diagnostic Procedure
  • Entering On-Board Diagnostics
    • Notes
    • CHECK ENGINE Light Diagnostic Mode
    • DRB-II Diagnostic Mode
  • Clearing Fault Codes
  • Summary
• DTC & Fault Codes/Messages
  • CODES/MESSAGES (Note: For DTC table, see TEST NS-1A under "Testing.")
• DRB-II Test Functions
  • Notes
  • Fuel/IGN Menu
    • Notes
    • SYSTEM TESTS Mode
    • READ FAULTS Mode
    • STATE DISPLAY Mode
    • ACTUATOR TESTS Mode
    • ADJUSTMENTS Mode
  • Adjustments Menu
    • ERASE FAULTS Mode
    • RESET MEMORY Mode
    • EMR MEMORY CHECK Mode
  • Fuel/IGN State Menu
    • MODULE INFO Mode
    • SENSORS Mode
    • INPUTS/OUTPUTS Mode
    • MONITORS Mode
    • CUSTOM DISPLAYS Mode
  • Monitors Menu
    • FUEL CONTROL Mode
    • ADVANCE Mode
    • RPM Mode
    • ADAPTIVE MEM Mode
    • NO START Mode
    • INTERROGATOR Mode
    • SEC INDICATORS Mode
  • Reset Memory Menu
    • ADAPTIVE FUEL Mode
    • AIS COUNTER Mode
    • MINIMUM TPS Mode
    • ALL VALUES Mode
  • DRB-II Volt/Ohmmeter
    • Notes
    • DRB-II Continuity Meter Mode
  • DRB-II Problems & Error Messages
    • Blank Message Screen
    • NO RESPONSE Message
    • Other Failure Messages
  • Emission Maintenance Reminder (EMR) Mileage Transfer
• Fuel Pressure Release
  • Relieving Fuel Pressure
• Connector Identification
• Self-Diagnostic Tests
  • Notes
  • Test NS-1A - Qualifying No Start Condition
  • Test NS-2A - Inspecting Fuel System
  • Test NS-3A - Inspecting Mechanical System
  • Test NS-4A - Correcting Fuel Delivery
  • Test NS-4B - Correcting Fuel Delivery
  • Test NS-5A - Repairing Fault "Fuel Injector Control Circuit"
  • Test NS-6A - Repairing Fault "Auto Idle Speed Motor Circuits"
  • Test NS-7A - Inspecting Fuel Pump
  • Test NS-7B - Inspecting Fuel Pump
  • Test NS-8A - Repairing No Response Condition
  • Test NS-9A - Repairing Fault "No Reference Signal During Cranking"
  • Test NS-9B - Repairing Fault "No Sync Pick-Up Signal"
  • Test NS-10A - Repairing Fault "Auto Shutdown Relay (ASD) Control Circuit"
  • Test NS-11A - Repairing Fault "No ASD Relay Voltage Sense At Controller"
  • Test NS-12A - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NS-12B - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NS-12C - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NS-12D - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NS-12E - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NS-13A - Correcting Start & Stall Condition
  • Test Dr-1A - Checking System For Faults
  • Test Dr-2A - Slow Change In Idle Map Signal (DTC 13)
  • Test Dr-3A - No Change In Map From Start To Run (DTC 13)
  • Test Dr-4A - Map Voltage Too Low (DTC 14)
  • Test Dr-5A - Map Voltage Too High (DTC 14)
  • Test Dr-6A - No Vehicle Speed Signal (DTC 15)
  • Test Dr-6B - No Vehicle Speed Signal
  • Test Dr-7A - Oxygen (O2) Signal Stays At Center (DTC 21)
  • Test Dr-8A - Oxygen (O2) Signal Shorted To Voltage (DTC 21)
  • Test Dr-9A - Oxygen (O2) Signal Stays Above Center (DTC 52)
  • Test Dr-10A - Oxygen (O2) Signal Stays Below Center (DTC 51)
  • Test Dr-11A - Coolant Sensor Voltage Too High (DTC 22)
  • Test Dr-12A - Coolant Sensor Voltage Too Low (DTC 22)
  • Test Dr-13A - TPS Sensor Voltage High (DTC 24)
  • Test Dr-14A - TPS Sensor Voltage Low (DTC 24)
  • Test Dr-15A - Auto Idle Speed (AIS) Motor Circuits (DTC 25)
  • Test Dr-16A - Injector No. 1 Control Circuit (DTC 27)
  • Test Dr-17A - Injector No. 2 Control Circuit (DTC 27)
  • Test Dr-18A - Injector No. 3 Control Circuit (DTC 27)
  • Test Dr-19A - Injector No. 4 Control Circuit (DTC 27)
  • Test Dr-20A - Injector No. 5 Control Circuit (DTC 27)
  • Test Dr-21A - Injector No. 6 Control Circuit (DTC 27)
  • Test Dr-22A - Injector No. 7 Control Circuit (DTC 27)
  • Test Dr-23A - Injector No. 8 Control Circuit (DTC 27)
  • Test Dr-23B - Injector No. 8 Control Circuit
  • Test Dr-24A - Purge Solenoid Circuit (DTC 31)
  • Test Dr-25A - Charge Temperature Sensor High (DTC 23)
  • Test Dr-26A - Charge Temperature Sensor Low (DTC 23)
  • Test Dr-27A - EGR Solenoid Circuit (DTC 32)
  • Test Dr-27B - EGR Solenoid Circuit
  • Test Dr-28A - EGR System Failure (DTC 32)
  • Test Dr-29A - A/C Clutch Relay Circuit (DTC 33)
  • Test Dr-30A - Torque Converter Lock-Up Circuit (DTC 37)
  • Test Dr-30B - Torque Converter Lock-Up Circuit
  • Test Dr-31A - Overdrive Solenoid CKT (W/O Lock-Up) (DTC 45)
  • Test Dr-32A - Overdrive Solenoid CKT (W/Lock-Up) (DTC 45)
  • Test Dr-33A - No Auto Shutdown (ASD) Relay Voltage Sense At Engine Controller (DTC 42)
  • TEST DR-34A - CONTROLLER FAILURE EMR MILES NOT STORED OR TEST DR-34A - CONTROLLER FAILURE EEPROM WRITE DENIED (DTC 62 or 63)
  • Test Dr-35A - Intermittent Test For Sensor Voltage
  • Test Dr-35B - Intermittent Test For Slow Change Or No Change In Map
  • Test Dr-36A - Intermittent Test For Auto Idle Speed (AIS) Motor
  • Test Dr-37A - Intermittent Injector Control Fault
  • Test Dr-38A - Intermittent Test For Relays & Solenoids
  • Test Dr-39A - Intermittent Auto Shutdown Sense Circuit Fault
• No-Fault Codes
  • Test NF-1A - No Fault Code Test Menu
  • Test NF-2A - Checking Secondary Ignition & Timing
  • Test NF-3A - Checking Fuel Pressure
  • Test NF-3B - Checking Fuel Pressure
  • Test NF-4A - Checking Coolant Sensor & Throttle Position Sensor (TPS) Calibrations
  • Test NF-5A - Checking Map Sensor Calibration
  • Test NF-6A - Checking Oxygen (O2) Sensor Switching
  • Test NF-6B - Checking Oxygen (O2) Sensor (Locked Lean)
  • Test NF-7A - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NF-7B - Checking Auto Idle Speed (AIS) Motor Operation
  • Test NF-8A - Checking Park/Neutral Switch Input (A/T Only)
  • Test NF-9A - Checking Engine Controller Ground & Power CKTS
  • Test NF-10A - Checking EGR Valve Operation
  • Test NF-11A - Checking Engine Vacuum
  • Test NF-12A - Performing No Fault Code Mechanical Test
• Verification Tests
  • Verification Test VER-1
  • Verification Test VER-2
  • Verification Test VER-3
    • Notes
    • To ensure no other fault remains, perform following:
• Wiring Diagrams