## Automatic Transmission

#### DTC Troubleshooting (cont'd)

14-79

DTC P0730: Problem in Shift Control System NOTE: Record all freeze data before you troubleshoot.

1. Check whether the OBD scan tool, PGM Tester or indicator light indicates another code.

Does the OBD scan tool, PGM Tester or D.gif indicator light indicate another code?

YES - Perform the troubleshooting Flowchart for the indicated Code(s). Recheck for code P0730 after troubleshooting.

NO - Go to step 2.

NOTE: Do not continue with this troubleshooting until the causes of any other DTCs have been corrected.

2. Measure the 1st, 2nd, 3rd and 4th clutch pressure (see page 14-114).

Is each clutch pressure within the service limit?

YES - Go to step 3.

NO - Repair the hydraulic system as necessary.

3. Replace the shift solenoid valves A and B (see page 14-117).
4. Replace the A/T clutch pressure control solenoid valves A and B (see page 14-119).

5. Turn the ignition switch OFF and reset the PCM memory by removing No.6 ECU (PCM) fuse in the under-hood fuse/relay box for more than 10 seconds.

6. Warm up the engine to normal operating temperature (the radiator fan comes on). If a scan tool or the PGM Tester is available, check to be sure that the engine coolant temperature is 176°F (80 dig C) or above using the scan tool or the PGM Tester.
7. Drive the vehicle at speeds over 12 mph (20 km/h) in 1st, 2nd, 3rd and 4th gears in position for more than 30 seconds.
8. Recheck for code P0730, 41-1, or 41.

Does the code P0730, 41-1, or 41 return?

YES - Overhaul the transmission.

NO - The system is OK at this time.