Symptom Troubleshooting Chart

PROBLEM SYMPTOM CHART

Problem	Possible Cause	Action
The smart junction box (SJB) does not respond to the WDS or equivalent Tester	Battery junction box (BJB) fuse 19(40A). Circuit or connection in the medium speed controller area network (CAN). SJB.	See PINPOINT TEST 6: NO MEDIUM SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
The instrument cluster does not respond to the WDS or equivalent Tester	Circuit or connection in high speed controller area network (CAN). Instrument cluster.	See PINPOINT TEST 7: NO HIGH SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
The powertrain control module (PCM) does not respond to the WDS or equivalent Tester	Circuit or connection in high speed controller area network (CAN). PCM.	See PINPOINT TEST 1: THE POWERTRAIN CONTROL MODULE (PCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
The restraint control module (RCM) does not respond to the WDS or equivalent Tester	Circuit or connection in the international standards organization (ISO) 9141 communication network. RCM.	See PINPOINT TEST 2: THE RESTRAINT CONTROL MODULE (RCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
The anti-lock brake system (ABS) module does not respond to the WDS or equivalent Tester	Circuit or connection in high speed controller area network (CAN). ABS module.	See PINPOINT TEST 3: THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
The four-wheel drive (4WD) control module does not respond to the WDS or equivalent Tester	Circuit or connection in high speed controller area network (CAN). 4WD control module.	See PINPOINT TEST 4: THE FOUR-WHEEL DRIVE (4WD) CONTROL MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL .
No international standards organization (ISO 9141) network communication	Circuit or connection in the ISO 9141 communication network. ISO 9141 networked modules.	See PINPOINT TEST 5: NO INTERNATIONAL STANDARDS ORGANIZATION (ISO) 9141 NETWORK COMMUNICATION .
No medium speed controller area network (CAN)	Circuit or connection in the medium speed CAN. Medium speed CAN networked modules.	See PINPOINT TEST 6: NO MEDIUM SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
No high speed controller area network (CAN)	Circuit or connection in the high speed CAN. High speed CAN networked modules.	See PINPOINT TEST 7: NO HIGH SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION .
No module/network communication - no power to the WDS or equivalent Tester	Data link connector (DLC). Battery junction box (BJB) fuse 19 (40A). Circuitry. Diagnostic tool.	See PINPOINT TEST 8: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL .