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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test DH - Throttle Position (TP) Sensor >> Test DH: Step 92
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Test DH: Step 92

92) Check EEC-IV Vehicle Harness  While in KOEO Continuous Monitor Mode, shake, bend and wiggle small sections of EEC-IV harness from TPS vehicle harness connector to firewall, and from firewall to ECA. If fault is indicated, isolate fault in wiring and repair as necessary. Clear codes and repeat QUICK TEST. If no fault is indicated, go to next step.