P1899

DTC P1899: CVT Drive Pulley Pressure Control Valve Stuck OFF or CVT Driven Pulley Pressure Control Valve Stuck ON
2003 AT-PZEV (SULEV) and 2004-2005 AT-PZEV Models

NOTE:
^ Record all freeze data and review General Troubleshooting Information before you troubleshoot.
^ Keep replacement solenoid valves on hand;
- CVT drive/driven pulley pressure control valve set.

1. Check for other DTCs or temporary DTC indicated simultaneous with DTC P1899.
Are there any other DTCs?
YES- Perform the troubleshooting for the indicated DTC. Recheck for DTC P1899 after troubleshooting.
NO- Go to step 2.
2. Clear the DTC with the HDS.
3. Warm up the engine until the engine coolant temperature reaches 176°F (80°C).
4. Check the IMA battery level gauge in the gauge assembly.
Does the battery level gauge indicate 4 - 19 segments?
YES- Go to step 5.
NO- Run the engine in the P position at 3,500 rpm until the battery level gauge shows 4-19 segments, then go to step 5.
5. Shift to the D position.
6. Keep pressing the brake pedal for 5 seconds.
7. Accelerate from a stop at full throttle, and drive the vehicle on a flat road at speeds 37 mph (60 km/h) or greater for more than 15 seconds. Do not release the accelerator fully-closed during test-driving.
8. Slow down the vehicle and stop the wheels, and after stopping keep pressing the brake pedal for 5 seconds.
9. Check whether the HDS indicates any DTC of P0746, P0777, or P1899.
Does the HDS indicate any DTC of P0746, P0777, or P1899?
YES- CVT drive pulley pressure control valve may be stuck OFF or CVT driven pulley pressure control valve may be stuck ON:
^ DTC P0746: Replace the CVT drive pulley pressure control valve.
^ DTC P0777: Replace the CVT driven pulley pressure control valve.
^ DTC P1899: Replace the CVT drive/driven pulley pressure control valve set.
After replacing the control valve, go to step 10.
NO- Return to step 6, and repeat to test-drive. If the tester does not indicate DTC after the test-drive has been done four times, the problem was an intermittent failure; the system is OK at this time. A
10. Clear the DTC with the HDS.
11. Carry out steps 5 thru 9, and check that DTC P1899 recurs.
Is DTC P1899 indicated?
YES- Replace the transmission assembly.
NO- The problem has been corrected.