Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2000 Ford ZX2 StandardFACTORY OEM SERVICE PROCEDURE
Data Link Diagnostic Test
WARNING: This page is about a different car, the 2002 Ford RV Cutaway, 2002 Ford Econoline, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Connect New Generation Star (NGS) tester to DLC, if not already connected. DLC is located below driver's side of instrument panel, to right of steering column. Select vehicle to be tested from NGS tester menu.
- Turn ignition switch to RUN position. Rotate dial on NGS tester to menu item DIAGNOSTIC DATA LINK and press trigger. A test will be performed on SCP bus for module communications network (circuits No. 914 and 915) and ISO 9141 communication network (circuit No. 70).
- If NGS tester displays CKT 914 (+) = SYSTEM PASSED and CKT 915 (-) = SYSTEM PASSED, SCP bus network is okay. If NGS tester displays CKT 70 = SYSTEM PASSED, ISO 9141 communication network is operating properly. Return to article that directed you here, or see SYMPTOM INDEX table under SYSTEM TESTS to continue diagnosis.
- If NGS tester does not display CKT 914 (+) = SYSTEM PASSED, CKT 915 (-) = SYSTEM PASSED and/or CKT 70 = SYSTEM PASSED, perform following procedures as applicable:
- If no response from NGS tester, see TEST H: NO MODULE/NETWORK COMMUNICATION under SYSTEM TESTS.
- If NGS tester displays CKT 70, CKT 914 and/or CKT 915 = SOME ECUS NO RESP/NOT EQUIP, see SYMPTOM INDEX table to continue diagnosis.
- If NGS tester displays CKT 70 = ALL ECUS NO RESP/NOT EQUIP, see TEST F: NO MODULE/NETWORK COMMUNICATION - ISO 9141 NETWORK under SYSTEM TESTS.
- If NGS tester displays CKT 914 = ALL ECUS NO RESP/NOT EQUIP, see TEST G: NO MODULE/NETWORK COMMUNICATION - SCP BUS under SYSTEM TESTS.
- If NGS tester displays CKT 915 = ALL ECUS NO RESP/NOT EQUIP, see TEST G: NO MODULE/NETWORK COMMUNICATION - SCP BUS under SYSTEM TESTS.
- If NGS tester displays NO RESPONSE/NOT EQUIPPED for module in question, see SYMPTOM INDEX table under SYSTEM TESTS to continue diagnosis.
NOTE:
Communication network circuits are identified by wire color at DLC. Circuit No. 70 is a Light Blue/White wire at DLC terminal No. 7, circuit No. 914 is a Tan/Orange wire at DLC terminal No. 2 and circuit No. 915 is a Pink/Light Blue wire at DLC terminal No. 10. See Figure. See COMPUTER DATA LINES in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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