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Home >> Ford >> 1994 >> Ranger 2WD L4-140 2.3L SOHC >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> System Pre-Checks >> System Pre-Check Pinpoint Tests >> D - Yellow RABS light OK/ No Self Check >> D4 - Check Loss of Brake Input to RABS Control Module
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D4 - Check Loss of Brake Input to RABS Control Module







- Remove the anti-lock electronic control module harness connector from the anti-lock electronic control module. Check for terminal back-out.

- Set multimeter to 20 VDC range.

- Press on brake pedal hard enough to turn on rear brake lights.

- Measure voltage from RABS harness connector Pin 11 to chassis ground while brake pedal is pressed.

- Are 9 volts or more present?

YES -- Leave anti-lock electronic control module disconnected. Go to D5. [1][2]D5 - Check Power to the RABS Electronic Control Module

NO -- Repair open in Circuit 511 (LG). Reconnect anti-lock electronic control module. Repeat System Pre-Check. Description
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