DTC P0864: TCM Communication Circuit Range/Performance
- OUTLINE OF DIAGNOSIS
- Detect the communication malfunction of AT diagnosis.
- Judge NG when the communication format does not correspond.
- ENABLE CONDITION ENABLE CONDITION
Secondary Parameters Enable Conditions Battery voltage "GREATER THAN EQUAL TO" .0V Engine speed "GREATER THAN EQUAL TO" 500 rpm Ignition switch ON - GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
- DIAGNOSTIC METHOD
Judge NG when the continuous time communication format does not correspond continued for time needed for diagnosis. Judge OK and clear the NG when the communication format corresponds.
Judgment Value
JUDGMENT VALUEMalfunction Criteria Threshold Value Incorrect pattern in wiring harness for communication "GREATER THAN EQUAL TO" 60 seconds Time Needed for Diagnosis: 60 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- DTC CLEAR CONDITION
- When the OK idling cycle is 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
- FAIL SAFE
None
- ECM OPERATION AT DTC
Memorize the freeze frame data. (For test mode $02)