Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
The powertrain control module (PCM) does not respond to the scan tool	Circuitry PCM	REFER to the PINPOINT TEST QA before proceeding to Pinpoint Test A. If pinpoint test QA has been completed, GO to PINPOINT TEST A .
The transmission control module (TCM) does not respond to the diagnostic tool	Circuit or connection in the high speed controller area network (CAN) TCM	GO to PINPOINT TEST B .
The anti-lock brake system (ABS) module does not respond to the diagnostic tool	Circuit or connection in the high speed controller area network (CAN) ABS module	GO to PINPOINT TEST C .
The restraint control module (RCM) does not respond to the diagnostic tool	Circuit or connection in the high speed controller area network (CAN) RCM	GO to PINPOINT TEST D .
The occupant classification sensor does not respond to the diagnostic tool	Circuit or connection in the high speed controller area network (CAN) Occupant classification sensor	GO to PINPOINT TEST E .
The four-wheel drive (4WD) control module does not respond to the diagnostic tool	Circuit or connection in the high speed controller area network (CAN) 4WD control module	GO to PINPOINT TEST F .
The instrument cluster does not respond to the diagnostic tool	Circuit or connection in the high speed controller area network (CAN) Circuit or connection in the medium speed CAN Instrument cluster	GO to PINPOINT TEST G .
The smart junction box (SJB) does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) SJB	GO to PINPOINT TEST H .
The parking aid module does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) Parking aid module	GO to PINPOINT TEST I .
The driver seat module (DSM) does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) DSM	GO to PINPOINT TEST J .
The electronic automatic temperature control (EATC) module does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) EATC module	GO to PINPOINT TEST K .
The retractable running board module does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) Retractable running board module	GO to PINPOINT TEST L .
The audio unit does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) Audio unit	GO to PINPOINT TEST M .
The satellite radio receiver does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) Satellite radio receiver	GO to PINPOINT TEST N .
The digital versatile disk (DVD) player does not respond to the diagnostic tool	Circuit or connection in the medium speed controller area network (CAN) DVD player	GO to PINPOINT TEST O .
No medium speed controller area network (CAN) communication	Circuit or connection in the medium speed CAN Network module	GO to PINPOINT TEST P .
No high speed controller area network (CAN) communication	Circuit or connection in the high speed CAN Network module	GO to PINPOINT TEST Q .
No module/network communication - no power to the diagnostic tool	Fuse Data link connector (DLC) C251 Circuitry Diagnostic tool	GO to PINPOINT TEST R .