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P0934-LINE PRESSURE SENSOR CIRCUIT LOW (CONTINUED) 2. PCM AND WIRING 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 Ignition on, engine not running. With the scan tool, under Transmission Sensors, monitor the Line Pressure. Using the Transmission Simulator, set the rotary switch to each of the 3 line pressure positions. NOTE: The readings should be within ±14 kPa or 2.0 PSI on the scan tool to the pressure readings specified Does the Line Pressure on the scan tool match the line pressures on the Transmission Simulator? Yes >> Replace the Line Pressure Sensor per the Service Information. Perform (NGC) 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 3 3. (T38) LINE PRESSURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector and connect Miller tool Disconnect the Transmission Simulator, Miller tool #8333. CAUTION: Do not probe the PCM harness connectors. Probing Is the resistance below 5.0 ohms? Yes >> Repair the (T38) Line Pressure Sensor Signal circuit for a short to ground. Perform (NGC) 45RFE/545RFE TRANSMISSION VERIFI- No >> Go To 4 21 - 608 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS ND |