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Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • The vehicle does not start with the scan tool connected to the Data Link Connector (DLC) and/or multiple malfunction indicators are only on when the scan tool is connected to the DLC  .
  • Wiring, terminals or connectors
  • Scan tool
  • The PCM does not respond to the scan tool
  • Wiring, terminals or connectors
  • PCM
  • The ABS module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • ABS module
  • The Instrument Cluster (IC) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • IC 
  • The Steering Angle Sensor Module (SASM) does not respond to the scan tool
  • Wiring, terminals or connectors
  • SASM 
    NOTE: The Steering Angle Sensor Module (SASM) communicates with other modules on the High Speed Controller Area Network (HS-CAN) but does not communicate with the scan tool.
  • REFER to VEHICLE DYNAMIC SYSTEMS .
  • The Parking Aid Module (PAM) does not respond to the scan tool or no ISO communication
  • Fuse
  • Wiring, terminals or connectors
  • PAM 
  • The Audio Control Module (ACM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • ACM 
  • The Speech Recognition Module (SRM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • SRM 
  • The Occupant Classification System Module (OCSM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • OCSM 
  • The Restraints Control Module (RCM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Case ground open
  • RCM 
  • The Tire Pressure Monitoring System (TPMS) module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • TPMS  module
  • The Generic Electronic Module (GEM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • GEM 
  • No Medium Speed Controller Area Network (MS-CAN) communication, all modules are not responding
  • Wiring, terminals or connectors
  • ACM 
  • GEM 
  • IC  (gateway module)
  • OCSM 
  • RCM 
  • SRM  (if equipped)
  • TPMS  module
  • Intermittent no Medium Speed Controller Area Network (MS-CAN) communication, one or more modules are not responding during network test
  • Wiring, terminals or connectors
  • DLC 
  • No High Speed Controller Area Network (HS-CAN) communication, all modules are not responding
  • Wiring, terminals or connectors
  • DLC 
  • ABS module
  • IC  (gateway module)
  • PCM
  • SASM  (if equipped)
  • Intermittent no High Speed Controller Area Network (HS-CAN) communication, one or more modules are not responding during network test
  • Wiring, terminals or connectors
  • DLC 
  • No power to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • DLC 
  • Scan tool