Symptom Chart

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
The anti-lock brake system (ABS) module does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) ABS module	GO to PINPOINT TEST A .
The powertrain control module (PCM) does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) PCM	GO to PINPOINT TEST B .
The driver door module (DDM) does not respond to the diagnostic tool	Circuit or connection in the standard corporate protocol (SCP) communications network DDM	GO to PINPOINT TEST C .
The electronic automatic temperature control (EATC) module does not respond to the diagnostic tool	Circuit or connection in the standard corporate protocol (SCP) communications network EATC module	GO to PINPOINT TEST D .
The restraints control module (RCM) does not respond to the diagnostic tool	Circuit or connection in the international standards organization (ISO) 9141 communications network RCM	GO to PINPOINT TEST E .
The air suspension module does not respond to the diagnostic tool	Circuit or connection in the standard corporate protocol (SCP) communications network Air suspension module	GO to PINPOINT TEST F .
The variable assist power steering (VAPS) module does not respond to the diagnostic tool	Circuit or connection in the standard corporate protocol (SCP) communications network VAPS module	GO to PINPOINT TEST G .
The lighting control module (LCM) does not respond to the diagnostic tool	Circuit or connection in the standard corporate protocol (SCP) communications network LCM	GO to PINPOINT TEST H .
The instrument cluster does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) Circuit or connection in the standard corporate protocol (SCP) communications network. instrument cluster	GO to PINPOINT TEST I .
The overhead console does not respond to the diagnostic tool.	Circuit or connection in the standard corporate protocol (SCP) communications network. Overhead console	GO to PINPOINT TEST J .
The fire suppression module (FSM) does not respond to the diagnostic tool	Circuit or connection in the controller area network (CAN) Circuit or connection in the international standards organization (ISO) 9141 communications network FSM	GO to PINPOINT TEST K .
No controller area network (CAN) communications	Circuit or connection in the CAN CAN network modules	GO to PINPOINT TEST L .
No international standards organization (ISO) 9141 network communication	Circuit or connection in the ISO 9141 communications network ISO 9141 communications network modules	GO to PINPOINT TEST M .
No standard corporate protocol (SCP) network communication	Circuit or connection in the SCP communications network SCP communications network modules	GO to PINPOINT TEST N .
No module/network communication - no power to the diagnostic tool	Fuse Data link connector (DLC) pins Diagnostic tool Circuitry	GO to PINPOINT TEST O .