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P0748-PRESSURE SOL CONTROL/TRANS RELAY CIRCUITS (DIESEL) (CONTINUED) 4. CHECK THE (T118) GOVERNOR PRESSURE SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the Transmission Solenoid Assembly harness connectors. Disconnect the ECM C2 harness connector. NOTE: Check connectors - Clean/repair as necessary. Is the resistance below 5.0 ohms? Yes >> Go To 5 No >> Repair the (T118) Governor Pressure Solenoid Control cir- cuit for an open. Perform RE TRANSMISSION VERIFICATION TEST VER - 5. CHECK THE (T118) GOVERNOR PRESSURE SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T118) Governor Is the resistance below 5.0 ohms? Yes >> Repair the (T118) Governor Pressure Solenoid Control cir- cuit for a short to ground. Perform RE TRANSMISSION VERIFICATION TEST VER - No >> Go To 6 21 - 836 AUTOMATIC TRANSMISSION - 48RE - DIESEL - ELECTRICAL DIAGNOSTICS DR/DH |