FAILURE DIAGNOSIS
1-80
TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(2) P1243/3: Failure B with CSD solenoid valve
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•
The CSD solenoid valve wiring may be short-circuited with GND (*NOTE).
• The CSD solenoid valve may be faulty.
•
Inner wiring short-circuited with GND (*NOTE).
*NOTE) If the CSD solenoid valve wire is short-circuited with GND, the E-ECU's power supply line fuse 10A
might be blown.Also the E-ECU internal circuitry may be faulty.In this case, the E-ECU may fail to
detect/indicate the error, and to store the error history.
• The E-ECU internal circuitry may be faulty.
DTC
P1243/3
Failure B with CSD Solenoid Valve
1 - Precondition; 2 - Detecting condition(s); 3 - Flashing pattern of failure indicator
Check points
1. Key switch ON.
2. Make an assessment logically as to followings.E-ECU detects the CSD
solenoid valve turning OFF signal during the command to turn ON the CSD
solenoid valve.
3. One flash followed by four flashes.
Connector
Harness
CSD solenoid valve
E-ECU
Error Mode
[Run As Is]:
After detecting the error, the system lets the engine continue to run without any
restrictions.
Run restricted?
No.
Recovery
Conditions
No.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 80 ページ ２００７年１１月１５日 木曜日 午後５時２７分
