Four-Wheel Drive (4WD) System - Diagnostics

• Description And Operation
  • Four Wheel Drive (4WD) Systems
• Diagnosis And Testing
  • Four Wheel Drive (4WD) Systems
    • Special Tool(s)
    • Principles of Operation
      • Notes
      • Heat Protection Mode
    • Inspection and Verification
    • DTC Charts
      • 4X4 Control Module DTC Chart
    • Symptom Chart - Four-Wheel Drive (4WD) System
    • Pinpoint Tests
      • Pinpoint Test A: All-Wheel Drive (AWD) System Functional Test
        • Notes
        • Normal Operation
        • PINPOINT TEST A: All-Wheel Drive (AWD) SYSTEM FUNCTIONAL TEST
      • Pinpoint Test B: DTC B1317/B1318 - Battery Voltage is High/Low (4X4 Control Module)
        • Notes
        • Normal Operation
        • Pinpoint Test B: DTC B1317/B1318 - Battery Voltage Is High/Low (4X4 Control Module)
      • Pinpoint Test C: DTC U0415 - 4X4 Control Module Received No/Invalid Data From ABS Module
        • Notes
        • Normal Operation
        • Pinpoint Test C: DTC U0415 - 4X4 Control Module Received No/Invalid Data From Abs Module
      • Pinpoint Test D: DTCs P1824/P1825 - 4-Wheel Drive Clutch Relay Circuit Failure/4-Wheel Drive Clutch Relay Open Circuit
        • Notes
        • Normal Operation
        • PINPOINT TEST D: DTCs P1824/P1825 - 4-WHEEL DRIVE CLUTCH RELAY CIRCUIT FAILURE/4-WHEEL DRIVE CLUTCH RELAY OPEN CIRCUIT
      • Pinpoint Test E: Vehicle Binds in a Turn or Resists Turning/Pulsates or Shudders in a Straight Line
        • Notes
        • Normal Operation
        • Pinpoint Test E: Vehicle Binds In A Turn Or Resists Turning/Pulsates Or Shudders In A Straight Line
      • Pinpoint Test F: DTC P1635 - Tire/Axle Out of Acceptable Range
        • Notes
        • Normal Operation
        • Pinpoint Test F: DTC P1635 - Tire/Axle Out Of Acceptable Range
• Removal And Installation
  • 4X4 Control Module
    • Removal and Installation