Symptom Chart

WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible	Sources Action
The smart junction box (SJB) does not respond to the diagnostic tool	Circuit or connection in the ISO 9141 network. Battery Junction Box (BJB) F1 (50A). SJB.	Go To PINPOINT TEST A: THE SMART JUNCTION BOX (SJB) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
The restraints control module (RCM) does not respond to the diagnostic tool	Circuit or connection in the ISO 9141 network. RCM.	Go To PINPOINT TEST B: RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
The anti-lock brake system (ABS) control module does not respond to the diagnostic tool	Circuit or connection in the ISO 9141 network. ABS control module.	Go To PINPOINT TEST C: THE ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
The four wheel drive (4WD) control module does not respond to the diagnostic tool	Circuit or connection in the ISO 9141 network. 4WD control module.	Go To PINPOINT TEST D: THE FOUR WHEEL DRIVE (4WD) CONTROL MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
No Controller Area Network (CAN) communication	Circuit or connection in the CAN. CAN networked module (instrument cluster only).	Go To PINPOINT TEST E: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
The instrument cluster does not respond to the diagnostic tool	Circuit or connection in the CAN. Instrument cluster.	Go To PINPOINT TEST E: NO CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
The powertrain control module (PCM) does not respond to the diagnostic tool	Circuit or connection in the standard corporate protocol (SCP) network. PCM.	Go To PINPOINT TEST F: NO STANDARD CORPORATE PROTOCOL (SCP) MODULE/NETWORK COMMUNICATION .
No standard corporate protocol (SCP) module/network communication	Circuit or connection in the SCP network. SCP networked module (PCM only).	Go To PINPOINT TEST F: NO STANDARD CORPORATE PROTOCOL (SCP) MODULE/NETWORK COMMUNICATION .
No international standards organization (ISO) 9141 network communication	Circuit or connection in ISO 9141 network. ISO 9141 network modules.	Go To PINPOINT TEST G: NO INTERNATIONAL STANDARDS ORGANIZATION (ISO) 9141 NETWORK COMMUNICATION .
No module/network communication - no power to the diagnostic tool	DLC. Battery junction box (BJB) J case (50A). Smart junction box (SJB) Fuse 4 (20A). Circuitry. Diagnostic tool.	Go To PINPOINT TEST H: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL .