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P0868-LINE PRESSURE LOW (CONTINUED) 2. CONDITION P0868 PRESENT With the scan tool, check the STARTS SINCE SET counter for P0868. NOTE: This counter only applies to the last DTC set. Is the START SINCE SET COUNTER 2 or less? Yes >> Go To 3 No >> Go To 11 3. CHECK LINE PRESSURE SENSOR CONNECTION Ignition on, engine not running. With the scan tool, monitor the Line Pressure, firmly push the Line Pressure Sensor harness connector towards the Did the Line Pressure change to about 207 kPa or 30 PSI when the connector was pushed? Yes >> Disconnect and properly reconnect the Line Pressure Sensor connector. Inspect terminals and repair as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Go To 4 4. 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 With the Transmission Simulator select the 9 OFF 9 position on the 9 Input/Output Speed 9 switch. NOTE: Check connectors - Clean/repair as necessary. With the scan tool, monitor the Line Pressure during the following steps. Using the Transmission Simulator, set the rotary knob to each of the 3 line pressure positions. NOTE: All three scan tool Line Pressure readings should be steady and ±14 kPa or 2.0 PSI of the reading Did the Line Pressure read within ±14 kPa or 2.0 PSI in all three positions? Yes >> Go To 5 No >> Go To 7 HB AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS 21 - 473 |