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Symptom Chart

NOTE: Refer to Description and Operation, Intelligent Access (IA) with Push Button Start in ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) to review the procedures for achieving the various ignition states (ignition off, ignition in accessory, ignition on, ignition start) on vehicles with this feature.

Symptom Chart 

SYMPTOM CHART

Condition Possible Sources Action
  • 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 Panel Cluster (IPC) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • IPC 
  • The Restraints Control Module (RCM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Case ground open
  • RCM 
  • The Occupant Classification System Module (OCSM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • OCSM 
  • The Headlamp Control Module (HCM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • HCM 
  • The Cruise-Control Module (C-CM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • C-CM 
  • The 4X4 control module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • 4X4 control module
  • The Smart Junction Box (SJB) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • SJB 
  • The HVAC module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • HVAC module
  • The Audio Control Module (ACM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • ACM 
  • The audio Digital Signal Processing (DSP) module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Audio DSP  module
  • The Front Controls Interface Module (FCIM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • FCIM 
NOTE:
  • Vehicles equipped with a navigation ACM  have a non-networked Front Display Interface Module (FDIM), which does not communicate with the scan tool.
The Front Display Interface Module (FDIM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • FDIM 
  • The Driver Seat Module (DSM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • DSM 
  • The Dual Climate Controlled Seat Module (DCSM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • DCSM 
  • The Parking Aid Module (PAM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • PAM 
  • The Driver Door Module (DDM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • DDM 
  • The Headlamp Control Module 2 (HCM-2) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • HCM-2 
  • The Remote Function Actuator (RFA) module does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • RFA  module
  • The Accessory Protocol Interface Module (APIM) does not respond to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • APIM 
  • Intermittent no High Speed Controller Area Network (HS-CAN) communication, communication can be intermittently established
  • Wiring, terminals or connectors
  • No High Speed Controller Area Network (HS-CAN) communication, all modules are not responding
  • Wiring, terminals or connectors
  • ABS module
  • APIM 
  • C-CM 
  • HCM  (if equipped)
  • IPC 
  • OCSM 
  • 4X4 control module (if equipped)
  • PCM
  • RFA  module
  • RCM 
  • Intermittent no Medium Speed Controller Area Network (MS-CAN) communication, communication can be intermittently established
  • Wiring, terminals or connectors
  • No Medium Speed Controller Area Network (MS-CAN) communication, all modules are not responding
  • Wiring, terminals or connectors
  • ACM 
  • APIM 
  • DCSM  (if equipped)
  • DDM 
  • DSM  (if equipped)
  • Audio DSP  module (if equipped)
  • FCIM 
  • FDIM  (without navigation ACM  , if equipped)
  • HCM-2 
  • HVAC module (if equipped)
  • IPC 
  • PAM  (if equipped)
  • RFA 
  • SJB 
  • No power to the scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Scan tool
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