Scantool Diagnostics

Automatic Transaxle
P0731 Gear 1 Incorrect Ratio - 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 "Current Gear, Target Gear, solenoid valves" parameter on the scan tool.
4. Select "D" range and Drive vehicle, confirm output data of solenoid valves.
Solenoid valve operating status according to gear position





-O- : variable control




















Fig 1) Solenoid valves in 1st gear
Fig 2) Solenoid valves in 1st gear-graph
Fig 3) Solenoid operating status - start to shift
Fig 4) Solenoid operating status - shifting
Fig 5) Solenoid operating status - down shift 2nd to 1st gear
5. Does solenoid valves "1" & "4" operated normally?