Symptom Tests: Notes
NOTE:
Tests included in this article are written specifically for New Generation Star (NGS) tester. Other OBD II-compatible scan tools may be used, but may not be equipped with equal test function capabilities. Refer to scan tool manufacturer's instructions.
NOTE:
Before performing any system tests, inspect DLC for loose, damaged or corroded terminals. Pay particular attention to terminals No. 2 (Gray/Red wire), No. 7 (White/Black wire) and No. 10 (Blue/Red wire). Always check module power and ground circuits prior to replacing a control module. See DATA LINK CONNECTORS, GROUND DISTRIBUTION or POWER DISTRIBUTION article in WIRING DIAGRAMS.
SYMPTOM INDEX
| Symptom | Perform Test |
|---|---|
| Anti-Lock Brake System Module Does Not Respond To Scan Tool | A |
| Powertrain Control Module Does Not Respond To Scan Tool - Except Zetec Engine | B |
| Powertrain Control Module Does Not Respond To Scan Tool - Zetec Engine | C |
| Instrument Cluster Does Not Respond To Scan Tool | D |
| Central Timer Module Does Not Respond To Scan Tool | E |
| Central Security Module Does Not Respond To Scan Tool | F |
| Restraint Control Module Does Not Respond To Scan Tool | G |
| No Module/Network Communication - All Modules | H |
| No Module/Network Communication - SCP Network | I |
| No Module/Network Communication - ISO 9141 Network | J |