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P0720-OUTPUT SPEED SENSOR CIRCUIT (CONTINUED) 3. OUTPUT SPEED SENSOR SIGNAL CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect the Transmission Simulator, Miller tool #8333. Disconnect the PCM harness connectors and connect Miller special CAUTION: Do not probe the PCM harness connectors. Probing Is the resistance above 5.0 ohms? Yes >> Repair the Output Speed Sensor Signal circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION No >> Go To 4 4. SPEED SENSOR GROUND CIRCUIT OPEN Measure the resistance of the Speed Sensor Ground circuit from the Is the resistance above 5.0 ohms? Yes >> Repair the Speed Sensor Ground circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION No >> Go To 5 21 - 70 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |