DTC P1743: Problem in Shift Control System; Shift Valve E Stuck OFF; DTC P1744: Problem in Shift Control System, Shift Valve E Stuck ON
- Warm up the engine to normal operating temperature (the radiator fan comes on)
- Make sure that the transmission is filled to the proper level, and check for fluid leaks
- Drain the ATF (see ATF Replacement, see step
3) through a strainer Inspect the strainer for metal debris or excessive clutch material
Does the strainer have metal debris or excessive clutch material?
YES -Replace the transmission, then go to step 9
NO -Replace the ATF (see ATF Replacement, see step 5), then go to step 4
- Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
- Clear the DTC with the HDS
- Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears. Slow down, and stop the wheels.
- Monitor the OBD status for P1743 or P1744 in the DTCs MENU with the HDS
Does the HDS indicate FAILED?
YES -Repair shift valve E in the main valve body (see MAIN VALVE BODY DISASSEMBLY, INSPECTION, AND REASSEMBLY ), replace the main valve body, or replace the transmission, then go to step 9.
NO -If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, go to step 6.
- Clear the DTC with the HDS.
- Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears. Slow down, and stop the wheels.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P1743 or P1744 indicated?
YES -Go to step 5.
NO -Go to step 11
- Monitor the OBD status for P1743 or P1744 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES -Troubleshooting is complete
NO -If the HDS indicates FAILED, go to step 8. If the HDS indicates NOT COMPLETED, go to step 9.