Scantool Diagnostics

Automatic Transaxle

P0891 TCM Power Relay Circuit High - Scantool Diagnostics

Monitor Scantool Data

1. Connect scan tool to data link connector (DLC), Ignition "ON"
2. Erase DTC and Engine "ON"
3. Monitor the "Shift control solenoid valve" parameter on the scan tool.
4. Select "D" range and Drive vehicle, confirm output data of solenoid valve.

Specification:48 mA ~ 848 mA

Solenoid valve operating status according to gear position





-O- : variable control








Fig 1) 1st~6th gear shifting : shift control solenoid valve
Fig 2) Battery voltage in Idle status
5. Are "Shift control solenoid valve & Battery voltage" within specification?