Symptom Chart

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The PCM does not respond to the scan tool, or no high speed controller area network (HS-CAN) communication	Fuse Wiring, terminals or connectors PCM ABS module Vehicle dynamics module (VDM) Instrument cluster (IC)	Go to Pinpoint Test A .
The ABS module does not respond to the scan tool	Fuse Wiring, terminals or connectors ABS module	Go to Pinpoint Test B .
The instrument cluster (IC) does not respond to the scan tool	Fuse Wiring, terminals or connectors IC	Go to Pinpoint Test C .
The lighting control module (LCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors LCM	Go to Pinpoint Test D .
The HVAC module does not respond to the scan tool	Fuse Wiring, terminals or connectors HVAC module	Go to Pinpoint Test E .
The vehicle dynamics module (VDM) does not respond to the scan tool	Fuse Wiring, terminals or connectors VDM	Go to Pinpoint Test F .
The driver door module (DDM) does not respond to the scan tool	Fuse Wiring, terminals or connectors DDM	Go to Pinpoint Test G .
The driver seat module (DSM) does not respond to the scan tool	Fuse Wiring, terminals or connectors DSM	Go to Pinpoint Test H .
The rear audio and temperature control (RATC) module does not respond to the scan tool	Fuse Wiring, terminals or connectors RATC module	Go to Pinpoint Test I .
The liftgate/trunk module (LTM) does not respond to the scan tool	Fuse Wiring, terminals or connectors LTM	Go to Pinpoint Test J .
The restraints control module (RCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors RCM	Go to Pinpoint Test K .
The parking aid module (PAM) does not respond to the scan tool	Fuse Wiring, terminals or connectors PAM	Go to Pinpoint Test L .
Intermittent no high speed controller area network (HS-CAN) communication, one or more modules are not responding during the network test.	Wiring, terminals or connectors	Go to Pinpoint Test M .
No International Standards Organization (ISO) 9141 network communication, all modules are not responding	Wiring, terminals or connectors RCM PAM LTM	Go to Pinpoint Test N .
No standard corporate protocol (SCP) network communication, all modules are not responding	Wiring, terminals or connectors HVAC module LCM DDM IC RATC module (if equipped) DSM (if equipped)	Go to Pinpoint Test O .
No high speed controller area network (HS-CAN) communication, all modules are not responding	Fuse Wiring, terminals or connectors PCM ABS module VDM IC	Go to Pinpoint Test A .
No power to the scan tool	Fuse Wiring, terminals or connectors Scan tool	Go to Pinpoint Test P .