## DTC Troubleshooting: P1891 (43-1)

DTC P1891: | Problem in Start Clutch Control System

NOTE: Record all freeze data before you troubleshoot.

1. | Check whether the another DTC is indicated. Is the another DTC indicated? YES - Perform the troubleshooting for the indicated DTC(s). Recheck for DTC P1891 after troubleshooting. NO - Go to 2.

2. | Turn the ignition switch OFF.

3. | Disconnect CVT start clutch pressure control valve connector from the control valve body.

4. | Start the engine, and shift to [D] position.

5. | Check if the vehicle moves. Does the vehicle move? YES - Go to 6. NO - Replace the start clutch.n

6. | Turn the ignition switch OFF.

7. | Reconnect CVT start clutch pressure control valve connector.

8. | Start the engine, and shift to [D] position.

9. | Check if the vehicle creeps and check the creeping speed on level ground. Does the vehicle creep and is the creeping speed about 5 km/h (3 mph)? YES - Go to 10. NO - Replace the control valve body.

10. | Measure the stall speed in [D], [S], [L], and [R] position. Is the stall speed over 3,500 rpm (min-1)? YES - Replace the start clutch.n NO - Go to 11.

11. | Turn the ignition switch OFF.

12. | Disconnect CVT start clutch pressure control valve connector from the control valve body.

13. | Start the engine, and shift to [D] position.

14. | Check if the vehicle moves. Does the vehicle move? YES - The system is OK, update the PCM if it does not have the latest software, or subsutitute a known-good PCM, then recheck. If the symptom/ indication goes away with a known-good PCM, replace the original PCM.n NO - Replace the start clutch.n