DISTRIBUTION SYSTEMS - ELECTRICA L POWE R SYSTEM
Auxiliary fuse and relay box Relay - Testing (A.30.A.90.80 -
G.40.A.20)
435, 445, 445CT
NOTE: For wirin g diagram refer to Wiring harness - Electrical schematic frame 02 (A.30.A.88 - C.20.E.02)
N°
Te st Point Expected Result
Other Result (Possible Cause)
1
Terminal for wire 178K (B) and wire
178BJ (B) to ground.
Continuity
Bad ground circuit.
2
Termin al for wire 180A (R) to
ground.
12 volts
Check the circuit between the
options power relay and the circuit
breaker. Also check the circuit
breaker.
3
Turn the key switch to the ON
position.
Terminal for wire 137H to ground.
12 volts
Check the circuit between the
options power relay and the key
switch "ACC" position. .
Also check the key switch.
4
Terminal for wire 138A to ground.
12 volts Bad options power relay.
Auxiliary fuse and relay box Power sw itch - Testing (A.30.A.90.85 -
G.40.A.20)
435, 445, 4
45CT
NOTE: Test procedures 1-3 are for Testing the Hydraulic Attachment Switch. Test procedures 4-5 are for Testing
the H yd raulic Attachment Fo rward Flow "ON" Switch.
For wirin
gdiagramrefertoWiring harness - Electrical schematic frame 25 (A.30.A.88 - C.20.E.25)
N°
Test Poin
t
Expected
Result
Other Result (Possible Cause)
1 Have another person sit in the
operator
s seat. Pull the seat bar
down to the operating position. Turn
the ke y switch to the ON position.
Push and
release the Hydraulic
Attachm en t Switch.
Termin al for wire 311BD (R) to
ground.
Approximately 12 volts
Check the
circuit for wire 311AD (R)
to the instrument cluster connector
pin 26.
Also chec
k the instrument cluster.
2 Disconnect connector 123D. Have
another person push and hold
the swit
ch in the FORWARD flow
position.
Termin al for w ire 545AD (Y) to
ground
.
Approximately 12 volts Bad switch.
3 Have another person push and hold
the switch in the REVER SE flow
positi
on.
Terminal for wire 546AD (LB) to
ground.
Approximately 12 volts Bad switch.
1 04/05/2005
A.30.A / 105
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