Failure Code [D19Jkz] Personal Code Relay Abnormality - Komatsu PC200-8M0 Shop Manual

SEN06135-00

Failure code [D19JKZ] Personal Code Relay Abnormality

Action
Failure code
level
L03 D19JKZ
q
Detail of failure Open circuit or short circuit is detected in primary (coil) circuit of personal code relay.
q
None in particular (for open circuit)
q
Action of Stops output to personal code relay (for short circuit).
q
machine moni- If cause of failure disappears, machine becomes normal by itself (for open circuit).
q
tor Even if cause of failure disappears, machine does not become normal until starting switch is turned
to OFF position (when short circuit is detected).
q
Problem on When circuit is open, you can start the engine if engine start lock is enabled.
q
machine When circuit has ground fault, you cannot start the engine.
q
This failure code is displayed only when engine lock function is enabled.
q
Method of reproducing failure code: Turn starting switch to ON position (open circuit). Failure code
Related infor-
cannot be reproduced (short circuit).
mation
q Troubleshooting for this failure code covers circuit starting from No. 3 of fuse F01, through primary
(coil) circuit of personal code relay R07, to machine monitor.
Cause
1 Blown fuse No. 3 of fuse box F01 When fuse is blown, ground fault may have probably occurred in circuit.
2 Defective personal code relay R07
Open circuit or short circuit or
3
ground fault in wiring harness
4 Open circuit in wiring harness
5 Ground fault in wiring harness
6 Short circuit in wiring harness
Defective machine monitor
7
(KOMTRAX section)
6
40-303
Failure code [D19JKZ] Personal Code Relay Abnormality
Personal Code Relay Abnormality
Failure
(KOMTRAX system in machine monitor)
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect relay R07, and connect T-adapters to male side.
Between R07 (male) (1) and (2)
1. Turn starting switch to OFF position.
2. Replace relay R07 with another one.
3. Turn starting switch to ON position.
If this failure code disappears, original personal code relay R07 is defective.
1. Turn starting switch to OFF position.
2. Remove fuse No. 3 of fuse box F01.
3. Disconnect connector CM01 and connect T-adapter to female side.
Between F01-3 and CM01 (female) (6)
Between F01-3 or CM01 (female) (6) and ground
a If no failure is found by check on cause 3, this check is not required.
1. Turn starting switch to OFF position.
2. Remove fuse No. 3 of fuse box F01.
3. Disconnect connector CM01 and relay R07, and connect T-adapters to
each female side.
Between F01-3 and R07 (female) (1)
Between R07 (female) (2) and CM01 (female) (6)
a If no failure is found by check on cause 3, this check is not required.
1. Turn starting switch to OFF position.
2. Remove fuse No. 3 of fuse box F01.
3. Disconnect connector CM01 and relay R07, and connect T-adapters to
either female side.
Between F01-3 or R07 (female) (1) and ground
Between R07 (female) (2) and ground, or between
CM01 (female) (6) and ground
1. Turn starting switch to OFF position.
2. Remove fuse No. 3 of fuse box F01.
3. Disconnect connectors CM01 and relay R07, and connect T-adapters to
female side of connector CM01.
a Check with multimeter in continuity mode.
Between CM01 (female) (6) and each pin other
than pin (6)
If no failure is found by above checks, machine monitor (KOMTRAX portion) is
defective. (Since this is an internal defect, troubleshooting cannot be per-
formed.)
303 Troubleshooting by failure code, Part 3
Resistance 100 to 500 z
Resistance 100 to 500 z
Resistance
Resistance
Resistance
Resistance
Resistance
No continuity
(No sound is heard)
PC200, 200LC, 220, 220LC-8M0
Min. 1 Mz
Max. 1 z
Max. 1 z
Min. 1 Mz
Min. 1 Mz