2 Oil temperature sensors are installed in Automatic-transmission, one of oil temperature measure measure for oil temperature in Automatic transmission and other one measure for ATF temperature. The automatic TRANSAXLE fluid(ATF) temperature provides very important data for the TCM's control of the Torque Converter Clutch, and is also used for many other purposes.
TCM set this code If Oil temperature sensors output different value over 20℃ each other or ATF temperature is higher than TCM inside temperature.(MIL ON : 2 driving Cycle)
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check signal range |
•
Faulty in Mechatronics (Valve-body + TCM) |
Enable Conditions |
•
No error in temperature system
•
TCM inside temperature : normal
•
Engine RPM or Input speed > 400RPM | |
Threshold Value |
•
First detected temperature - later detected temperature > 20℃ | |
Diagnostic Time |
•
1.5 second | |
Fail Safe |
•
- (priority :3) |
The function with the higher priority will aiways take precedence. However, a low-priority is not overruled by a higher priority function.
Functions from different priority categories can also run in parallel. It is important to note which function will take precedence in this case.
In such an event it is possible for a substitute function with low priority not be carried out if a second, higher-priority function is present. This has been taken into account when compiling the priority list and is international.
The mechanical emergency run function must always have the highest priority, since from the electrical standpoint it is the only safe condition.
Fig 1) Oil temperature sensor(normal status)
