FAILURE DIAGNOSIS
TNV DI Service Manual
1-7
DTCs (Diagnostic Trouble Codes) General Description
Description Items
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
Provides descriptive information on possible points of failure, possible direct causes (such as a disconnected sensor
wire), or possible system abnormalities that has indirectly caused the failure (such as abnormally high cooling water
temperature), as can be estimated from the output DTC.
Note: Indicates failures that might be related with the output DTC.
Diagnosis Description
Describes methods or procedures of failure diagnosis.
* After sucessful recovery by the replacement of ECU, sensor or actuator, make sure that installing
the previous parts will reproduce the same error.
DTC
Code Number
DTC Name
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
Check points
1. Precondition for Error detection
2. Error detecting Condition
3. Indicates the pattern in which the failure lamp flashes when the
DTC is output. (For detailed information on various flashing
patterns, see Annex).
This column shows what parts or
items should be checked to identify
the cause of the error.
For details, see "<Diagnosis
Description>."
Error Mode
[Operation Continuation] / [Run Under Restrictions] / [Stop Immediately]:
The engine operation after detecting the error is described.
*
[Operation Continuation]:After detecting the error, the system lets the engine
continue to run without any restrictions.
[Run Under Restrictions]:The system lets the engine continue to run but restricts the
High idle speed, engine power, and/or other performance
factors as appropriate.
[Stop Immediately]: The system stops the engine immediately after detecting the
error.When any error is detected before starting the engine, the
starter will not rotate.
Run restricted?
Yes/No.: If Yes, this field details how the engine run is restricted when the error has
occurred.
Recovery
Conditions
Yes/No.: If Yes, this field describes what conditions must be true for the error mode
to be reset.
Remarks
This field describes some notes on safety precautions and so on, as appropriate.
TNV_DI_SM_A4-Troubleshooting.book 7 ページ ２００７年１１月１５日 木曜日 午後５時２７分
