FAILURE DIAGNOSIS
1-108
TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
Water Temperature Switch
(1) P1217/0: Abnormal Water Temperature
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The engine may be overheated.
• The engine cooling water level may be too low.
• The engine cooling system may be faulty.
• Wiring defect of the harness
•
The water temperature switch wiring may be short-circuited with GND.
• The water temperature switch may be faulty.
•
Inner wiring of the water temperature switch may be short-circuited with GND.
• The E-ECU internal circuitry may be faulty.
DTC
P1217/0
Abnormal Water Temperature
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
Check points
1. Key switch ON.
2. Water temperature switch turns ON after engine has been
started.
* This manual assumes that the contact input is configured as
Normally Open (NO).
3. Three flashes followed by three flashes.
Engine cooling system
Harness
Water Temperature Switch
E-ECU
Setting of response to water temperature error
Unavailable
Available
Error Mode
[Run As Is]:
After detecting the error, the system lets
the engine continue to run without any
restrictions.
[Run Under Restrictions]:
The engine continues to run under
restrictions.
Run restricted?
No.
Yes: The system restricts the High idle
speed or engine power.
Recovery
Conditions
No.
No.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 108 ページ ２００７年１１月１５日 木曜日 午後５時２７分
