Diagnosis - Ax4N Automatic Transmission

• Application
• Description & Operation
  • Notes
  • Self-Diagnostic System
    • Diagnostic Formats
    • Retrieving Codes
    • Diagnostic Trouble Codes (DTC)
    • KOEO & KOER Codes (Hard Faults)
    • Continuous Memory Codes (Intermittent Faults)
  • Pcm Location
  • Input Sensors
    • Air Conditioning Clutch (ACC) Switch
    • Brake Pedal Position (BPP) Switch
    • Crankshaft Position (CKP) Sensor & Electronic Ignition (EI)
    • Engine Coolant Temperature (ECT) Sensor
    • Intake Air Temperature (IAT) Sensor
    • Mass Air Flow (MAF) Sensor
    • Power Steering Pressure (PSP) Switch
    • Transmission Control Switch (TCS) & Transmission Control Indicator Light (TCIL)
    • Transmission Fluid Temperature (TFT) Sensor
    • Throttle Position (TP) Sensor
    • Transmission Range (TR) Sensor - Analog (Except Continental and Sable/Taurus 3.0L 2V)
    • Transmission Range (TR) Sensor - Digital (Continental and Sable/Taurus 3.0L 2V)
    • Turbine Shaft Speed (TSS) Sensor
    • Vehicle Speed Sensor (VSS)
  • Output Devices
    • Electronic Pressure Control (EPC) Solenoid
    • Solenoid Valve Body Assembly
    • Torque Converter Clutch (TCC) Solenoid
• Trouble Shooting
  • Notes
  • Visual Inspection
• Symptom Tests
  • Harsh Forward Engagement
  • Harsh Reverse Engagement
  • Delayed/Soft Forward
  • Delayed/Soft Reverse
  • Harsh Forward & Reverse Engagement
  • Soft Forward & Reverse
  • Some Or All Shifts Missing
  • Some Or All Shifts Early Or Late
  • Erratic Or Hunting Shifts
  • Soft Or Slipping Shifts
  • Harsh Shifts
  • No 1ST Gear In Drive, Engages In Higher Gear
  • No 1-2 Or 3-4 Upshift In "D" Position
  • No 2-3 Upshift In "D" Position
  • No 4-3 Or 2-1 Downshift
  • No TCC Engagement
  • TCC Always Engaged
  • TCC Cycling Or Shuddering
  • Poor Vehicle Performance
  • Engine Will Not Crank
  • Transaxle Overheating
• Diagnosis & Testing
  • Diagnostic Procedure
  • Quick Test
    • Description
    • Visual Check
    • Equipment Hookup
    • Key On Engine Off (KOEO) Self-Test
    • Key On Engine Running (KOER) Self-Test
    • Continuous Memory Self-Test
  • Reading Codes
    • Notes
    • KOEO & KOER Self-Test Codes
    • Pass Codes
    • Continuous Memory Codes
  • Clearing Codes
    • Notes
    • PCM Reset
  • Scan Tool Unable To Communicate
    • Diagnostic Aids
  • Additional System Functions
    • Notes
    • Generic OBD-II Parameter Identification (PID)
    • Non-Generic OBD-II Parameter Identification (PID)
    • Output Test Mode (OTM)
    • Failure Mode Effects Management (FMEM)
    • Hardware Limited Operational Strategy (HLOS)
  • Torque CONVERTOR Engagement Test
  • Transaxle Drive Cycle Test
    • Notes
    • Test Procedure
  • Transaxle Dynamic Drive Cycle Test
    • Preliminary Set Up
    • EPC Solenoid
    • Engagements
    • Upshift/Downshift
    • Torque Converter Engagement
    • Turbine Shaft Speed (TSS) Sensor Function Check
    • Transmission Tester Removal & Clearing Trouble Codes
  • Summary
• System Tests
  • Notes
  • How To Use System Tests
  • Test A: Shift Solenoids
  • Test B: Transmission Fluid Temperature (TFT) Sensor
  • Test C: Torque Converter Clutch (TCC) Solenoid
  • Test D: Analog Transmission Range (Tr) Sensor (Except Continental & Sable/TAURUS 3.0L 2V)
  • Test D: Digital Transmission Range (Tr) Sensor (Continental & Sable/TAURUS 3.0L 2V)
  • Test E: Electronic Pressure Control (EPC) Solenoid
  • Test F: Turbine Shaft Speed (TSS) Sensor
  • Test G: Solenoid Mechanical Failure
• Removal & Installation
  • Notes
  • Powertrain Control Module (Pcm)
    • Removal & Installation
• Wiring Diagrams