Code [2311/Ca2311] Imv (Ima) Solenoid Error - Komatsu 114E-3 Series Shop Manual

SEN00460-01
E-54 Code [2311/CA2311] IMV (IMA) Solenoid Error
Error code Failure code
2311 CA2311
Contents of
• Resistance in supply pump actuator is abnormally high or low.
trouble
Action of
• None in particular.
controller
Problem that
appears • Engine output drops.
on machine
Related infor-
• Method of reproducing failure code: Start engine.
mation
1 Defective related system
Defective supply pump actu-
2
ator
Disconnection in wiring har-
ness (Disconnection in wiring
3
or defective contact in con-
nector)
Possible
causes and
standard value
Ground fault in wiring har-
in normal state
4 ness (Short circuit with GND
circuit)
Defective wiring harness
5
connector
6 Defective engine controller
50
Trouble Abnormality in IMV (IMA) solenoid
Causes
If another failure code is indicated, carry out troubleshooting for it.
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
CP3 PUMP REGULATOR (Male)
Between (1) – chassis ground
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between J1 (female) (2) –
CP3 PUMP REGULATOR (female) (1)
Wiring harness between J1 (female) (32) –
CP3 PUMP REGULATOR (female) (2)
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between J1 (female) (2) –
CP3 PUMP REGULATOR (female) (1)
Connecting parts among supply pump actuator, engine wiring har-
ness, and engine controller are suspected. Inspect them directly.
• Loose connector, broken lock, broken seal
• Corrosive, bent, broken, forced-in, or extended pin
• Humidity in connector, entry of dirt or dust, poor insulation
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Between (2) – chassis ground
Standard value in normal state/Remarks on troubleshooting
Between (1) – (2)
J1 (Female)
Between (2) – (32)
40 Troubleshooting
1
Resistance
Max. 5 z
Min. 100 kz
Resis-
Max. 5 z
tance
Resis-
Max. 5 z
tance
Resis- Min.
tance 100 kz
Resistance
Max. 5 z
Min. 100 kz
114E-3 Series