P0735
DTC P0735 GEAR 5 INCORRECT RATIOGENERAL DESCRIPTION
The value of the input shaft speed should be equal to the value of the output shaft speed, when multiplied by the 5th gear ratio, while the transaxle is engaged in the 5th gear. For example, if the output speed is 1000 rpm and the 5th gear ratio is 0.859, then the input speed is 859 rpm.
DTC DESCRIPTION
This code is set if the value of input shaft speed is not equal to the value of the output shaft, when multiplied by the 5th gear ratio, while the transaxle is engaged in 5th gear. This malfunction is mainly caused by mechanical troubles such as control valve sticking or solenoid valve malfunctioning rather than an electrical issue.
DTC DETECTING CONDITION:
MONITOR SCANTOOL DATA
It is difficult to "STALL TEST" in 5th gear, therefore Go to "Signal circuit inspection" procedure.
SIGNAL CIRCUIT INSPECTION
1. Connect Scantool.
2. Engine "ON".
3. Monitor the "INPUT & OUTPUT SPEED SENSOR" parameter on the Scantool.
4. Accelerate the Engine speed until about 2000 rpm in the 5th gear.
Specification: INPUT SPEED - (OUTPUT SPEED x GEAR RATIO) 200 RPM
5. Does "INPUT & OUTPUT SPEED SENSOR" within specifications?
YES
- Go to "Component inspection" procedure.
NO
- Check for electrical noise of circuit in INPUT & OUTPUT SPEED SENSOR or Replace INPUT & OUTPUT SPEED SENSOR. Repair as necessary and Go to "Verification of Vehicle Repair" procedure.
COMPONENT INSPECTION:
1. Connect Oil pressure gauge to "C1" port.
2. Engine "ON".
3. Drive a car with gear position 5 in "SPORTS MODE".
4. Compare it with reference data as below.
5. Is oil pressure value within specifications?
YES
- Repair AUTO TRANSAXLE (Clutch or Brake) as necessary and Go to "Verification of Vehicle Repair" procedure.
NO
- Replace AUTO TRANSAXLE (BODY CONTROL VALVE faulty) as necessary and Go to "Verification of Vehicle Repair" procedure.
NOTE: When replacing the TCU, must perform the N position learning and the Initial learning.
VERIFICATION OF VEHICLE REPAIR
After a repair, it is essential to verify that the fault has been Corrected.
1. Connect Scantool and select "Diagnostic Trouble Codes (DTCs)" mode.
2. Using a Scantool, Clear DTC.
3. Operate the vehicle within DTC Enable conditions in General information.
4. Are any DTCs present?
YES
- Go to the applicable troubleshooting procedure.
NO
- System performing to specification at this time.