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DTC P1751/47: Internal Hydraulic System Malfunction

NOTE: For circuit reference, see CONNECTOR IDENTIFICATION , PIN VOLTAGE TESTS  and WIRING DIAGRAMS  .
  1. Using scan tool, retrieve A/T freeze data. Clear DTCs and road test vehicle under same conditions freeze data was recorded. If DTC returns, go to next step. If DTC does not return, problem is intermittent. Check transaxle and PCM connections.
  2. Turn ignition off. Replace shift control solenoid valve "B" assembly. See SHIFT CONTROL SOLENOID VALVE "B" ASSEMBLY  under REMOVAL & INSTALLATION. Replace A/T clutch pressure control solenoid valve "A"/"B" assembly. See A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE "A"/"B" ASSEMBLY  under REMOVAL & INSTALLATION.
  3. Clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Road test vehicle at over 12 MPH for several minutes in 2nd, 3rd, 4th and 5th gear. Using scan tool, check for DTC P1751/47. If DTC is not present, malfunction has been repaired. If DTC P1751/47 resets, replace transaxle.
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