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System Tests: Notes

NOTE: Before performing any system tests, inspect Data Link Connector (DLC) for loose, damaged or corroded terminals. Pay particular attention to terminals No. 2 (Tan/Orange wire), No. 7 (Light Blue/White wire) and No. 10 (Pink/Light Blue wire).
NOTE: Always check module power and ground circuits prior to replacing a control module. See appropriate wiring diagram in DATA LINK CONNECTORS, GROUND DISTRIBUTION or POWER DISTRIBUTION article in WIRING DIAGRAMS.
SYMPTOM INDEX

Symptom Perform Test
Anti-Lock Brake System (ABS) Module Does Not Respond To NGS Tester A 
Generic Electronic Module Does Not Respond To NGS Tester B 
Restraint Control Module Does Not Respond To NGS Tester C 
Instrument Cluster Does Not Respond To NGS Tester D 
Powertrain Control Module (PCM) Does Not Respond To NGS Tester E 
No Module/Network Communication - ISO 9141 Link F 
No Module/Network Communication - Bus Link G 
No Module/Network Communication H