Failure Code [Ca324] Inj #3 (L#3) Open/Short Error - Komatsu PC210-8 Shop Manual

UEN00240-01

Failure code [CA324] Inj #3 (L#3) Open/Short Error

User code Failure code
E11
Contents of
• Opening or short circuit was detected in drive circuit of No. 3 injector.
trouble
Action of
• None in particular.
controller
Problem that
• Combustion becomes irregular or engine hunts.
appears on
• Engine output lowers.
machine
Related infor-
• Method of reproducing failure code: Start engine.
mation
1 Defective engine controller
2 Defective No. 3 injector
Disconnection in wiring har-
ness (Disconnection in wiring
3
or defective contact in con-
nector)
Ground fault in wiring har-
4 ness (Short circuit with GND
Possible causes
circuit)
and standard
value in normal
state
Short circuit in wiring harness
5
(with another wiring harness)
Defective wiring harness
6
connector
7 Defective engine controller
58
Trouble
CA324
Cause
Injector #3 (L#3) open/short circuit error
(Engine controller system)
Standard value in normal state/Remarks on troubleshooting
If following failure codes are also displayed, trouble is in engine con-
troller. [CA322], [CA324], [CA331]
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
INJ CYL 3 (male)
Between (1) – (2)
Between (1) – chassis ground
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between CE01 (female) (55)
– INJ CYL 3 (female) (1)
Wiring harness between CE01 (female) (52)
– INJ CYL 3 (female) (2)
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between CE01 (female) (55)
– INJ CYL 3 (female) (1)
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between CE01 (female) (55)
– each of CE01 (female) pins (With all wiring
harness connectors disconnected)
Wiring harness between CE01 (female) (52)
– each of CE01 (female) pins (With all wiring
harness connectors disconnected)
Connecting parts between No. 3 injector – engine wiring harness –
engine controller may be defective. Check them directly.
• Looseness of connector, breakage of lock, or breakage of seal
• Corrosion, bend, breakage, push-in, or expansion of pin
• Moisture or dirt in connector or defective insulation
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
CE01 (female)
Between (55) – (52)
Between (55) – chassis ground
40 Troubleshooting
1
Resistance
Max. 2 z
Min. 100 kz
Resis-
Max. 2 z
tance
Resis-
Max. 2 z
tance
Resis-
Max. 2 z
tance
Resis- Min. 100
tance kz
Resis- Min. 100
tance kz
Resistance
Max. 2 z
Min. 100 kz
PC210, 230, 240-8