Komatsu PC200-8M0 Shop Manual page 696

SEN06135-00
PC220-8M0, PC220LC-8M0
q
Cause
Defective model selection connec-
1 tor
(internal open or short circuit)
2 Open circuit in wiring harness
3 Short circuit in wiring harness
Ground fault in wiring harness
4
(contact with ground circuit)
5 Defective pump controller
20
40-303
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect connector S30 and connect T-adapters to female side.
Between S30 (female) (1) and (2)
Between S30 (female) (2) and (3)
Between S30 (female) (3) and (4)
Between S30 (female) (4) and (7)
Between S30 (female) (7) and (8)
Between S30 (female) (1) and (3)
Between S30 (female) (3) and (8)
1. Turn starting switch to OFF position.
2. Disconnect connector C01 and connect T-adapters to female side.
Between C01 (female) (40) and ground
Between C01 (female) (77) and ground
1. Turn starting switch to OFF position.
2. Disconnect connector C01 and connect T-adapters to female side.
Between C01 (female) (21) and C01 (77)
Between C01 (female) (39) and C01 (77)
Between C01 (female) (58) and C01 (77)
1. Turn starting switch to OFF position.
2. Disconnect connector C01 and connect T-adapters to female side.
Between C01 (female) (21) and ground
Between C01 (female) (39) and ground
Between C01 (female) (58) and ground
If no failure is found by above checks, pump controller is defective. (Since this
is an internal defect, troubleshooting cannot be performed.)
303 Troubleshooting by failure code, Part 3
Failure code [DA29KQ] Model Selection Abnormality
PC200, 200LC, 220, 220LC-8M0
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Max. 1 z
Resistance
Max. 1 z
Resistance
Max. 1 z
Resistance
Max. 1 z
Resistance
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz
Resistance Min. 1 Mz