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 Differential electronic module (DEM) (if equipped) Restraints control module (RCM) Transmission control module (TCM) Instrument cluster	Go to Pinpoint Test A .
The transmission control module (TCM) does not respond to the scan tool	Fuse Circuitry TCM	Go to Pinpoint Test B .
The differential electronic module (DEM) (if equipped) does not respond to the scan tool	Fuse Circuitry DEM	Go to Pinpoint Test C .
The electronic automatic temperature control (EATC) module (if equipped) does not respond to the scan tool	Fuse Circuitry EATC module	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 anti-lock brake system (ABS) module does not respond to the scan tool	Fuse Circuitry ABS module	Go to Pinpoint Test F .
The instrument cluster does not respond to the scan tool	Fuse Circuitry Instrument cluster	Go to Pinpoint Test G .
The restraints control module (RCM) does not respond to the scan tool	Fuse Circuitry Case ground open RCM	Go to Pinpoint Test H .
The audio unit does not respond to the scan tool	Fuse Circuitry Audio unit	Go to Pinpoint Test I .
The driver seat module (DSM) (if equipped) does not respond to the scan tool	Fuse Circuitry DSM	Go to Pinpoint Test J .
The digital versatile disc (DVD) player (if equipped) does not respond to the scan tool	Fuse Circuitry DVD player	Go to Pinpoint Test K .
The parking aid module (if equipped) does not respond to the scan tool	Fuse Circuitry Parking aid module	Go to Pinpoint Test L .
The satellite radio receiver (if equipped) does not respond to the scan tool	Fuse Circuitry Satellite radio receiver	Go to Pinpoint Test M .
No International Standards Organization (ISO) 9141 network communication	Circuitry Parking aid module	Go to Pinpoint Test N .
No medium speed controller area network (MS-CAN) communication, all modules are not responding	Circuitry Audio unit DVD player (if equipped) Satellite radio receiver (if equipped) DSM (if equipped) EATC module (if equipped) SJB Instrument cluster	Go to Pinpoint Test O .
No high speed controller area network (HS-CAN) communication, all modules are not responding	Circuitry ABS module DEM (if equipped) Instrument cluster PCM RCM TCM	Go to Pinpoint Test A .
No power to the scan tool	Fuse Circuitry Scan tool	Go to Pinpoint Test P .