Air Cleaner Switch; P1101/0: Air Cleaner Clogging Alarm - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

Air cleaner switch

(1) P1101/0: Air Cleaner Clogging Alarm

DTC P1101/0
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s); 3 - Flashing pattern of failure indicator
1. Key switch ON.
2. Air cleaner 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 four flashes.
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 air cleaner may be clogged.
• Wiring defect of the harness
The air cleaner switch wiring may be short-circuited with GND.
•
• The air cleaner switch may be faulty.
Inner wiring of the air cleaner switch may be short-circuited with GND.
•
• The E-ECU internal circuitry may be faulty.
1-110
DTCs (Diagnostic Trouble Codes) General Description
Air cleaner Clogging Alarm
Setting of Response to Air Cleaner Failure
Unavailable
Air Cleaner
Harness
Air cleaner switch
E-ECU
Available
[Run Under Restrictions]:
The engine continues to run under
restrictions.
Yes: The system restricts the High idle
speed or engine power.
No.
TNV DI Service Manual
Check points