SEN04123-01 40 Troubleshooting
12 PC130-8
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
8
Defective alternator (Internal
short circuit)
a Prepare with starting switch OFF, then turn starting switch ON
and carry out troubleshooting.
Alternator Voltage
Between L –
chassis ground
Generation output Max. 1 V
9
Disconnection in wiring har-
ness (Disconnection in wiring
or defective contact in con-
nector)
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between H15 (male) (4) –
J01 – R06 (female) (5)
Resis-
tance
Max. 1 z
Wiring harness between R06 (female) (3) –
R07 (female) (4)
Resis-
tance
Max. 1 z
Wiring harness between R07 (female) (3) –
R19 (female) (1)
Resis-
tance
Max. 1 z
Wiring harness between starting motor
safety relay B (R29) – heater relay (R15) –
battery relay M
Resis-
tance
Max. 1 z
Wiring harness between starting motor
safety relay E – chassis ground
Resis-
tance
Max. 1 z
Wiring harness between starting motor
safety relay C (R28) – starting motor C
(M17)
Resis-
tance
Max. 1 z
Wiring harness between F01-3 – S14 (male)
(1)
Resis-
tance
Max. 1 z
Wiring harness between S14 (male) (3) –
R06 (female) (1)
Resis-
tance
Max. 1 z
Wiring harness between R06 (female) (2) –
J04 – chassis ground (T04)
Resis-
tance
Max. 1 z
10
Ground fault in wiring har-
ness (Short circuit with GND
circuit)
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between H15 (male) (4) –
J01 – R06 (female) (5) – circuit branch end
and chassis ground
Resis-
tance
Min. 1 Mz
Wiring harness between R06 (female) (3) –
R07 (female) (4) and chassis ground
Resis-
tance
Min. 1 Mz
Wiring harness between R07 (female) (3) –
R19 (female) (1) and chassis ground
Resis-
tance
Min. 1 Mz
Wiri
ng harness between starting motor
safety relay B (R29) – heater relay (R15) –
battery relay M and chassis ground
Resis-
tance
Min. 1 Mz
Wiring harness between starting motor
safety relay C (R28) – starting motor C
(M17) and chassis ground
Resis-
tance
Min. 1 Mz
Wiring harness between F01-3 – S14 (male)
(1) and chassis ground
Resis-
tance
Min. 1 Mz
Wiring harness between S14 (male) (3) –
R06 (female) (1) and chassis ground
Resis-
tance
Min. 1 Mz
11
Hot short (Short circuit with
24V circuit) in wiring harness
a Prepare with starting switch OFF, then turn starting switch ON
and carry out troubleshooting.
Wiring harness between R19 (female) (2) –
J02 – alternator L – circuit branch end and
chassis ground
Voltage Max. 1 V
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