Contact Input Related Failures; Oil Pressure Related Failures; P1192/4: Failure With Oil Pressure Switch - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

Contact Input Related Failures

Oil Pressure Related Failures

(1) P1192/4: Failure with Oil Pressure Switch

DTC P1192/4
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s); 3 - Flashing pattern of failure indicator
1. Key switch ON.
2. Oil pressure switch turns ON with engine stopped.
* This manual assumes that the contact input is configured as Normally Open
(NO).
3. Two flashes followed by one flash.
Movement at Error occurrence
Error Mode [Run As Is]:
After detecting the error, the system lets the engine continue to run without any
restrictions.
Run restricted? No.
Recovery No.
Conditions
Remarks
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
The oil pressure switch wiring may be disconnected or short-circuited with POWER SUPPLY.
•
• The oil pressure switch may be faulty.
Inner wiring of the oil pressure switch may be disconnected or short-circuited with POWER SUPPLY.
•
• The E-ECU internal circuitry may be faulty.
1-100
DTCs (Diagnostic Trouble Codes) General Description
Failure with oil pressure switch
Check points
Connector
Harness
Oil pressure switch
E-ECU
TNV DI Service Manual