Module Communications Network

• Description And Operation
  • Module Communications Network
    • Overview
      • Communication Network
    • System Operation
    • System Diagram
      • Network Topology
    • Network Termination
    • Gateway Module
    • High Speed Controller Area Network (HS-CAN)
    • Medium Speed Controller Area Network (MS-CAN)
    • Infotainment Controller Area Network (I-CAN)
    • Controller Area Network (CAN) Fault Tolerance
      • Notes
      • Normal Operation
      • Controller Area Network (CAN) Circuits Shorted Together
      • Controller Area Network (CAN) (+) Circuit Shorted To Ground
      • Controller Area Network (CAN) (-) Circuit Shorted To Ground
      • Controller Area Network (CAN) (+) Circuit Shorted To Battery Voltage
      • Controller Area Network (CAN) (-) Circuit Shorted To Battery Voltage
      • Controller Area Network (CAN) Circuit Signal Corruption
    • Controller Area Network (CAN) Multiplex Messages
• DTC And Symptom Chart(S)
  • Symptom Chart(s)
    • Symptom Chart: Communication Network
• Diagnostic Routine(S)
  • Diagnostic Routine A
    • Diagnostic Overview
      • The Powertrain Control Module (PCM) Does Not Respond To The Scan Tool
      • Normal Operation
    • Pinpoint Test
  • Diagnostic Routine B
    • Diagnostic Overview
      • The Anti-Lock Brake System (ABS) Module Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine C
    • Diagnostic Overview
      • The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine D
    • Diagnostic Overview
      • The Front Control Display Interface Module (FCDIM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine E
    • Diagnostic Overview
      • The Occupant Classification System Module (OCSM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine G
    • Diagnostic Overview
      • The Steering Column Control Module (SCCM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine H
    • Diagnostic Overview
      • The Instrument Panel Cluster (IPC) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine I
    • Diagnostic Overview
      • The Body Control Module (BCM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine J
    • Diagnostic Overview
      • The Heating Ventilation Air Conditioning (HVAC) Module Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine K
    • Diagnostic Overview
      • The Audio Control Module (ACM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine L
    • Diagnostic Overview
      • The Audio Digital Signal Processing (DSP) Module Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine M
    • Diagnostic Overview
      • The Front Lighting Control Module (FLM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine N
    • Diagnostic Overview
      • The Liftgate Trunk Module (LTM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine O
    • Diagnostic Overview
      • The Driver Seat Module (DSM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine P
    • Diagnostic Overview
      • The Global Positioning System Module (GPSM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine Q
    • Diagnostic Overview
      • The Dual Climate Controlled Seat Module (DCSM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine R
    • Diagnostic Overview
      • The Parking Aid Module (PAM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine S
    • Diagnostic Overview
      • The Accessory Protocol Interface Module (APIM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine T
    • Diagnostic Overview
      • The Head Up Display (HUD) Module Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine U
    • Diagnostic Overview
      • The Cruise-Control Module (C-CM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine V
    • Diagnostic Overview
      • The Side Obstacle Detection Control Module - Left (SOD-L) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine W
    • Diagnostic Overview
      • The Side Obstacle Detection Control Module - Right (SOD-R) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine X
    • Diagnostic Overview
      • The Tire Pressure Monitor (TPM) Module Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine Y
    • Diagnostic Overview
      • The Front Controls Interface Module (FCIM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine Z
    • Diagnostic Overview
      • The Remote Function Actuator (RFA) Module Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine AA
    • Diagnostic Overview
      • The All Terrain Control Module (ATCM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine AC
    • Diagnostic Overview
      • The Power Steering Control Module (PSCM) Does Not Respond To The Scan Tool
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
  • Diagnostic Routine AD
    • Diagnostic Overview
      • No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding
      • Normal Operation and Fault Conditions
    • Pinpoint Test
  • Diagnostic Routine AE
    • Diagnostic Overview
      • No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not Responding
      • Normal Operation and Fault Conditions
    • Pinpoint Test
  • Diagnostic Routine AF
    • Diagnostic Overview
      • No Infotainment Controller Area Network (I-CAN) Communication, All Modules Are Not Responding
      • Normal Operation and Fault Conditions
    • Pinpoint Test
  • Diagnostic Routine AG
    • Diagnostic Overview
      • No Power To The Data Link Connector (DLC)
      • Normal Operation and Fault Conditions
      • Visual Inspection and Diagnostic Pre-checks
    • Pinpoint Test
• General Procedures
  • Establishing An IDS Session
    • General Procedure