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4. CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN Disconnect the PCM C1 harness connector and connect Miller tool Measure the resistance of the (F856) 5-volt Supply circuit between Line Is the resistance below 5.0 ohms? Yes >> Go To 5 No >> Repair the (F856) 5-volt Supply circuit for an open. Perform 42RLE TRANSMISSION VERIFICATION TEST - 5. CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND Disconnect the PCM C1 harness connector and connect Miller tool Measure the resistance between ground and the (F856) 5-volt Supply Is the resistance below 5.0 ohms? Yes >> Repair the (F856) 5-volt Supply circuit for a short to ground. Perform 42RLE TRANSMISSION VERIFICATION TEST - No >> Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or Perform 42RLE TRANSMISSION VERIFICATION TEST - 21 - 614 AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS LX |