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P1756-GOV PRESS NOT EQUAL TO TARGET @ 35 - 40 PSI (DIESEL) (CONTINUED) 7. CHECK THE 5 VOLT SUPPLY CIRCUIT FOR AN OPEN - EXTERNAL Turn the ignition off to the lock position. Disconnect the Transmission Solenoid Assembly harness connector. Disconnect the ECM harness connectors. NOTE: Check connectors - Clean/repair as necessary Is the resistance below 5.0 ohms? Yes >> Go To 8 No >> Repair the 5-volt Supply circuit for an open. Perform RE TRANSMISSION VERIFICATION TEST VER - 8. CHECK THE 5 VOLT SUPPLY CIRCUIT FOR AN OPEN - INTERNAL Remove the transmission oil pan. (Refer to 21 - TRANSMISSION/ Reconnect the Transmission Solenoid Assembly harness connector. Disconnect the Governor Pressure Sensor connector internal to the Measure the resistance of the 5-volt Supply circuit between the ECM Is the resistance below 5.0 ohms? Yes >> Go To 9 No >> Repair or replace the 5-volt Supply circuit for an open internal to the transmission. Perform RE TRANSMISSION VERIFICATION TEST VER - 21 - 932 AUTOMATIC TRANSMISSION - 48RE - DIESEL - ELECTRICAL DIAGNOSTICS DR/DH |