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Home >> Acura >> 2003 >> RSX Base, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission) >> DTC Troubleshooting >> DTC P0730: Problem in Shift Control System >> 2002-2004 Models
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2002-2004 Models

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • Record all freeze data and review General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION  ) before you troubleshoot.
  • Keep replacement solenoid valves on hand;
    • A/T clutch pressure control solenoid valves B and C
    • Shift solenoid valves A, B, C, D, and E
  1. Check whether the scan tool or the HDS indicates another code.

    Does the scan tool or the HDS indicate another code? 

    1. YES -  Perform the troubleshooting for the indicated code(s). Recheck for code P0730 after troubleshooting.
    2. NO -  Go to step 2.
      NOTE: Do not continue with this troubleshooting until the causes of any other DTCs have been corrected.
  2. Drain the ATF (see ATF REPLACEMENT  ) through a strainer. Inspect the strainer for metal debris or excessive clutch material.

    Does the strainer contain metal debris or excessive clutch material? 

    1. YES -  Replace the transmission.
    2. NO -  Replace the ATF (see ATF REPLACEMENT  ), then go to step 3.
  3. Measure the 1st, 2nd, 3rd, 4th, and 5th clutch pressure (see PRESSURE TEST  ).

    Is each clutch pressure within the service limit? 

    1. YES -  Go to step 4.
    2. NO -  Repair the hydraulic system as necessary or replace the transmission.
  4. Replace the shift solenoid valves A, B, C, D, and E (see SHIFT SOLENOID VALVE REPLACEMENT  ).
  5. Replace the A/T clutch pressure control solenoid valves B and C (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B AND C REPLACEMENT  ).
  6. Reset the PCM memory by removing the No. 6 ECU (15 A) fuse in the underhood fuse/relay box for more than 10 seconds (see PCM RESET PROCEDURES  ).
  7. Using the scan tool or the HDS, check to be sure that the engine coolant temperature is 176°F (80°C) or above. If the coolant temperature is low, warm up the engine to normal operating temperature (the radiator fan comes on).
  8. Drive the vehicle at speeds over 12 mph (20 km/h) in 1st, 2nd, 3rd, 4th, and 5th gears in D position for more than 30 seconds.
  9. Recheck for code P0730.

    Does the scan tool or the HDS indicate code P0730? 

    1. YES -  Replace the transmission.
    2. NO -  The system is OK at this time.
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