ULEV Model

DTC P1891: Problem in Start Clutch Control System
ULEV Model

NOTE: Record all freeze data and review General Troubleshooting Information before you troubleshoot.

1. Check whether the scan tool or the HDS indicates another code.
Does the scan tool or the HDS indicate another code?
YES- Do the DTC Troubleshooting for the indicated code(s). Recheck for DTC P1891 after troubleshooting.
NO- Go to step 2.
2. Turn the ignition switch OFF.
3. Disconnect solenoid harness connector.
4. Start the engine.
5. Shift to the D position, and check whether the vehicle moves.
Does the vehicle move?
YES- Go to step 6.
NO- Replace the start clutch.
6. Turn the ignition switch OFF.
7. Connect solenoid harness connector.
8. Start the engine, and shift to the D position.
9. Check whether the vehicle creeps and check the creeping speed on level ground.
Does the vehicle creep and is the creeping speed about 3 mph (5 km/h)?
YES- Go to step 10.
NO- Replace the CVT start clutch pressure control valve.
10. Measure the stall speed rpm in the D position.
Is the stall speed over 3,500 rpm?
YES- Replace the start clutch.
NO- The system is OK at this time. If necessary, update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM replace the original TCM