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Four Wheel Drive (4WD) Systems
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Four Wheel Drive (4WD) Systems
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Description And Operation
Four Wheel Drive (4WD) Systems
Component Location
Overview
System Operation
System Diagram
Network Message Chart
All-Wheel Drive (AWD)
Terrain Management
PTU Cooling
PTU Oil Life Monitor
Heat Protection Mode
Component Description
Active Torque Coupling (ATC) Solenoid
Powertrain Control Module (PCM)
All-Wheel Drive (AWD) Relay Module
All Terrain Control Module (ATCM)
Diagnosis And Testing
Four Wheel Drive (4WD) Systems
Principles of Operation
Notes
Heat Protection (RDU)
AWD Bar Code Identification
Steel Cover RDU
Aluminum Cover RDU
AWD Drive Cycle
Inspection and Verification
DTC Chart
Symptom Chart
Pinpoint Tests
Pinpoint Test A: AWD System Functional Test
Diagnostic Overview
Normal Operation and Fault Conditions
Pinpoint Test A: AWD System Functional Test
Pinpoint Test B: P182B, P182C, P182D
Diagnostic Overview
Normal Operation and Fault Conditions
Possible Sources
Pinpoint Test B: P182B, P182C, P182D
Pinpoint Test C: P187B
Diagnostic Overview
Normal Operation and Fault Conditions
Possible Sources
Pinpoint Test C: P187B
Pinpoint Test D: P188B
Diagnostic Overview
Normal Operation and Fault Conditions
Possible Sources
Pinpoint Test D: P188B
Pinpoint Test E: P188C, P188D
Diagnostic Overview
Normal Operation and Fault Conditions
Possible Sources
Pinpoint Test E: P188C, P188D
Pinpoint Test F: Vehicle Binds in a Turn or Resists Turning/Pulsates or Shudders in a Straight Line
Diagnostic Overview
Normal Operation and Fault Conditions
Pinpoint Test F: Vehicle Binds In A Turn Or Resists Turning/Pulsates Or Shudders In A Straight Line
General Procedures
Automatic Torque Coupling (ATC) Configuration
Power Transfer Unit (PTU) Oil Life Monitor Reset
Removal And Installation
All Terrain Control Module (ATCM)
Exploded View
Removal
Installation
All Wheel Drive (AWD) Relay Module
Exploded View
Removal
Installation