General Information
Automatic Transaxle
P0829 5-6 Shift - General Information
Component Location
General Description
The ratio monitoring controls the nominal gear box ratio to the real gear box ratio. While driving in a gear (reverse, first second, third) there is a calibrated rationality check between turbine speed and output speed of the corresponding gear. While up or down shifting from one gear to another there is a calibrated rationality check between turbine speed and output speed of the corresponding shift. While engaging the gear there is a calibrated rationality check between turbine speed and output speed of the corresponding shift if the actual output speed is higher or equal than a calibrated threshold. While engaging the gear when the actual output speed is lower than the threshold there is a rationality check on the turbine speed.
DTC Description
TCM set this code If target gear ratio and actual gear ratio are not match in condition that 5th -> 6th gear or 6th -> 5th gear shifting. (MIL ON : 2 driving Cycle)
DTC Detecting Condition
CAUTION :
1. The function with the higher priority will always take precedence. However, a low-priority is not overruled by a higher priority function.
2. Functions from different priority categories can also run in parallel. It is important to note which function will take precedence in this case.
3. 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.
4. The mechanical emergency run function must always have the highest priority, since from the electrical standpoint it is the only safe condition.
Signal Waveform & Data
Fig 1) 5th-6th gear shifting : Shift control solenoid valve 2
Fig 2) 6th-5th gear shifting : Shift control solenoid valve 3