Symptom Chart

Condition	Possible Sources	Action
The powertrain control module (PCM) does not respond to the scan tool or no high speed controller area network (HS-CAN) communication	Fuse Circuitry PCM Anti-lock brake system (ABS) module Four wheel drive (4WD) control module (if equipped) Instrument cluster	Go to Pinpoint Test A .
The anti-lock brake system (ABS) module does not respond to the scan tool	Fuse Circuitry ABS module	Go to Pinpoint Test B .
The four wheel drive (4WD) control module does not respond to the scan tool	Fuse Circuitry 4WD control module	Go to Pinpoint Test C .
The instrument cluster does not respond to the scan tool	Fuse Circuitry Instrument cluster	Go to Pinpoint Test D .
The smart junction box (SJB) does not respond to the scan tool	Fuse Circuitry SJB	Go to Pinpoint Test E .
The restraints control module (RCM) does not respond to the scan tool	Fuse Circuitry RCM	Go to Pinpoint Test F .
The parking aid module does not respond to the scan tool	Fuse Circuitry Parking aid module	Go to Pinpoint Test G .
No International Standards Organization (ISO) 9141 network communication	Circuitry RCM Parking aid module	Go to Pinpoint Test H .
No medium speed controller area network (MS-CAN) communication, all modules are not responding	Circuitry SJB Instrument cluster	Go to Pinpoint Test I .
No high speed controller area network (HS-CAN) communication, all modules are not responding	Circuitry ABS module 4WD control module (if equipped) Instrument cluster PCM	Go to Pinpoint Test A .
No power to the scan tool	Fuse Circuitry Scan tool	Go to Pinpoint Test J .