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P1757-GOV PRESS ABOVE 3 PSI IN GEAR WITH 0 MPH (GAS) (CONTINUED) 9. CHECK THE 5 VOLT SUPPLY CIRCUIT FOR AN OPEN INSIDE THE TRANSMISSION Reconnect the Transmission Solenoid Assembly harness connector. Remove the transmission oil pan per the Service Information. (Refer to Disconnect the Governor Pressure Sensor connector internal to the Measure the resistance of the (F856) 5-volt Supply circuit between the Is the resistance below 5.0 ohms? Yes >> Go To 10 No >> Repair or replace the (F856) 5-volt Supply circuit for an open internal to the transmission. Perform RE TRANSMISSION VERIFICATION TEST VER - 10. CHECK THE ENGINE CONTROL MODULE - 5 VOLT SUPPLY Reconnect the PCM harness connectors. Ignition on, engine not running. Measure the voltage of the (F856) 5-volt Supply circuit in the Governor Is the voltage between 4.5 and 5.5 volts? Yes >> Replace the Governor Pressure Sensor per the Service Information. (Refer to 21 - TRANSMISSION/TRANSAXLE/ Perform RE TRANSMISSION VERIFICATION TEST VER - No >> Using the schematics as a guide, check the Powertrain Control Module (PCM) pins, terminals, and con- nectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground - ELECTRICAL/ELECTRONIC CONTROL MODULES/POWERTRAIN CONTROL MODULE - REMOVAL) Perform RE TRANSMISSION VERIFICATION TEST VER - 1 (GAS). (Refer to 21 - TRANSMISSION/ 21 - 772 AUTOMATIC TRANSMISSION - 48RE - GAS - ELECTRICAL DIAGNOSTICS DR/DH |