DTC P0866 TCM COMMUNICATION CIRCUIT HIGH
|
|
DTC P0866 TCM COMMUNICATION CIRCUIT HIGH
|
Detect open or short circuit in AT diagnosis
line.
Judge NG when the AT diagnosis input line
signal remains High.
Data frame as “Start signal (Low_40
ms + High_20 ms) → Data → End
signal” is transmitted every approx. 1 second.
|
Secondary
Parameters
|
Enable
Conditions
|
Ignition
switch
|
ON
|
Battery
voltage
|
≥ 10.9
V
|
Engine
speed
|
≥ 500
rpm
|
Vehicle
speed
|
> 0
km/h (0 MPH)
|
Perform diagnosis during the vehicle running.
Judge NG when the continuous time until completing
the malfunction criteria below becomes more than the time needed
for diagnosis (3 seconds). Judge OK and clear NG when the malfunction
criteria below are not completed.
Judgment
Value
|
Malfunction
Criteria
|
Threshold
Value
|
AT diagnosis
input line signal
|
High
|
Time Needed for Diagnosis:
3
seconds
Malfunction Indicator
Light Illumination:
Illuminates when malfunction occurs in
two continuous drive cycles.
|
•
|
When the OK idling cycle was completed 40 times
in a row
|
|
•
|
When “Clear Memory” was
performed
|
|
MALFUNCTION
INDICATOR LIGHT CLEAR CONDITION
|
|
•
|
When the OK driving cycle was completed 3 times
in a row
|
|
•
|
When “Clear Memory” was
performed
|
None
|
ECM OPERATION
AT DTC SETTING
|
Memorize the freeze frame data. (For test
mode $02)
