LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Module Checks >> TFI-IV Module >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

TFI-IV Module: Notes

Remove distributor. Remove TFI module from distributor. Measure resistance between TFI-IV module terminals with ohmmeter. See Fig 1 and TFI-IV MODULE RESISTANCE. If resistance is NOT as specified, replace TFI-IV module.

TFI-IV MODULE RESISTANCE

Between Terminals Resistance (ohms)
GND & PIP-IN Greater Than 500
PIP PWR & PIP-IN Less Than 2000
PIP PWR & TFI PWR Less Than 200
GND & IGN GND Less Than 2
PIP-IN & PIP Less Than 200
Fig 1: Identifying TFI-IV Module Terminals
G90H14321Courtesy of FORD MOTOR CO.