Input speed sensor value must be equal Output speed sensor value times each gear ratio at each gear position of trasmission. That operation value equal with TCM operation value. For example Output speed sensor value is 1000RPM and 6th speed gear ratio is 0.830 then Input speed sensor value must be 830 RPM.
This code is set when Input speed sensor value is different with TCM operation value, caused by control valve sticking, solenoid valve fault(most of fault is mechanical, rarely electrical fault).
Item
Detecting Condition
Possible Cause
DTC Strategy
6th gear incorrect gear ratio
Input speed sensor fault
Output speed sensor fault
Clutch slip in Transmission
Enable Conditions
Oil Temperature Sensor >-10?
Time after shift changing finish > 1sec.
Engine speed >400rpm
Output speed >200rpm
Input speed > 0rpm
Shift stage 6th. gear
TR switch = "D"range or Sports mode
Threshold value
1st : Input speed sensor-Output speed sensor X Gear ratio = 200rpm
2nd~8th :?Input speed sensor-Output speed sensor X Gear ratio| = 200rpm
Detecting Time
More than 1 sec and 4 times
Fail safe
Locked into 5th gear
UD
4&OD
35R
27
8LR
6
ON/OFF
SS-A
P
O
N
1
2
3
4
5
7
8
LOW
REV
Fig 1) "D" range 6th