DTC Troubleshooting

DTC Troubleshooting: P0746 (104)

DTC P0746:

CVT Drive Pulley Pressure Control Valve Stuck OFF

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information How To Troubleshoot The CVT System.

1. Turn the ignition switch to ON (II).

2. Check for Pending or Confirmed DTCs with the HDS.

Are any other Pending or Confirmed DTCs indicated simultaneously with DTC P0746?

YES -

Go to the indicated DTC's troubleshooting, and recheck.

NO -

Go to step 3.

3. Clear the DTC with the HDS.

4. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on twice).

5. Check the SOC in the DATA LIST with the HDS.

Does the SOC indicate more than 50%?

YES -

Go to step 6.

NO -

Start the engine with the shift lever in P or N, hold engine speed at 3,500 rpm until the SOC indicates at least 50%, then go to step 6.

6. Shift the shift lever to D.

7. Keep pressing the brake pedal for 5 seconds.

8. Accelerate from a stop at full throttle, on a flat road for about 15 seconds. Do not release the accelerator during the test-drive.

9. Slow down to a stop. After stopping keep pressing the brake pedal for 5 seconds.

10. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0746, P0777, or P1899 indicated?

YES -

The CVT drive pulley pressure control solenoid valve may be stuck OFF or the CVT driven pulley pressure control valve may be stuck ON:

- DTC P0746 is indicated, replace the CVT drive pulley pressure control solenoid valve CVT Drive Pulley Pressure Control Solenoid Valve Replacement.
- DTC P0777 is indicated, replace the CVT driven pulley pressure control solenoid valve CVT Driven Pulley Pressure Control Solenoid Valve Replacement.
- DTC P1899 is indicated, replace the CVT drive pulley pressure control solenoid valve CVT Drive Pulley Pressure Control Solenoid Valve Replacement and CVT driven pulley pressure control solenoid valve CVT Driven Pulley Pressure Control Solenoid Valve Replacement as a set.

If any part was replaced, go to step 11.

NO -

Go to step 6, and repeat the test-drive. If the HDS does not indicate a DTC after the test-drive has been done four times, the problem was an intermittent failure; the system is OK at this time.

11. Turn the ignition switch to ON (II).

12. Clear the DTC with the HDS.

13. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on twice).

14. Shift the shift lever to D.

15. Keep pressing the brake pedal for 5 seconds.

16. Accelerate from a stop at full throttle on a flat road for about 15 seconds. Do not release the accelerator.

17. Slow down to a stop. After stopping keep pressing the brake pedal for 5 seconds.

18. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0746 indicated?

YES -

Replace the transmission.�

NO -

Go to step 19.

19. Monitor the OBD STATUS for P0746 in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

YES -

Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 18, go to the indicated DTC's troubleshooting.�

NO -

If the HDS indicates FAILED, check for poor connections or loose terminals between the CVT drive pulley pressure control solenoid valve and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 13.