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P0875-UD HYDRAULIC PRESSURE TEST (CONTINUED) 7. LINE PRESSURE SENSOR OPERATION Turn the ignition off to the lock position. Remove the Starter Relay. NOTE: Removal of the Starter Relay is to prevent a Transmission, NO RESPONSE, condition and disable the NOTE: Check connectors - Clean/repair as necessary. 9 OFF 9 position on the 9 Input/Output Speed 9 switch. Ignition on, engine not running. With the scan tool, monitor the Line Pressure while turning the Pressure Switch selector to each of the 3 line pres- NOTE: All three scan tool Line Pressure readings should be steady and ±14 kPa or 2.0 PSI of the reading Did the scan tool Line Pressure readings match the specified readings on the Transmission Simulator and Yes >> Replace the Line Pressure Sensor per the Service Information. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 8 8. (F856) 5-VOLT SUPPLY CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect Transmission Simulator. Disconnect the PCM C1 harness connector and connect Miller tool CAUTION: Do not probe the PCM harness connectors. Probing Is the resistance above 5.0 ohms? Yes >> Repair the (F856) 5-volt Supply circuit for an open. Perform 45RFE/545RFE TRANSMISSION VERIFICATION No >> Go To 9 21 - 572 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS ND |