TCM supply Power source to each sensors and solenoids in order to optimum control.It is difficult check for power supply circuit Because E-module installed in inside Automatic transmassion.
TCM set this code If supplied voltage form TCM is too Low.(MIL ON : 2 driving Cycle)
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check signal range |
•
Faulty in Mechatronics (Valve-body + TCM) |
Enable Conditions |
•
IG ON
•
Battery voltage > 7.8V | |
Threshold Value |
•
Supply voltage < 6.51V | |
Diagnostic Time |
•
Immediately | |
Fail Safe |
•
High speed : fixed at 5th gear, low speed : fixed at 3rd gear
•
Maximum line-pressure control (D : 14kg/㎠, R : 20kg/㎠)
•
Vehicle speed is transfered to wheel speed sensor
•
Torque convertor clutch : OFF
•
No learning control
•
Reverse : Shift lock(Push "Unlock button → possible to shift) (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) Main relay and Battery voltage(Idle status)
