TROUBLESHOOTING
M-4
M-4 When starting switch is turned ON, none of lamps on monitor
panel light up for 3 seconds
* Before carrying out troubleshooting, check that all the related connectors are properly inserted.
* Always connect any disconnected connectors before going on to the next step.
a) None of the lamps on monitor panel light up
NO
. Voltage: 20 - 30 V
* Turn starting
switch ON.
NO
M-4 Related electric circuit diagram
Monitor panel
POl(O4020)
Power
a
Fuse
source
1
13
a
W
6
H05tM6)
GND
@.
@--
g
X08DD164
b) Some of lamps on monitor panel (gauge display, time display) do not
light up
Cause
Iefective monitor panel
Iefective contact, or
jisconnection in wiring
iarness between fuse 13 -
‘01 (female) (l)(2) or PO1
female) (11)(12) - HO5 (3)(4)
-chassis ground, or betweer
‘use 6 - PO1 (6)
3lown fuse
Iefective monitor panel
Remedy
Replace
Repair or
replace
Iheck for cause
>f blown fuse,
:hen replace
leplace
20-246
a
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