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I-TRIM
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31
If no lights come on and fuse is good
and there is power to the board:
1. Make sure SIB is grounded by checking the
resistance between the capacitor ground on the
SIB and the vehicle frame. Resistance should
be 0.
If SIB is not grounded:
1. Check the resistance between terminal J1-7 on
the SIB and the vehicle frame. Resistance
should be 0.
If number 1 above is not 0 and number 2 above is 0:
The SIB is faulty and should be replaced.
If number 1 above is 0 and number 2 above is not 0:
The problem is in the wiring or terminals between
J1-7 and the frame ground which is located on
the ROPs support behind the SIB bracket.
If SIB is grounded and lights still don’t come on:
1. Temporarily put jumper between terminals
J3-1 and J3-2 on SIB. (The jumper can be
a thin piece of U-shaped wire inserted into
the backside of the connector.)
a. The seat relay indicator light, (the first light
on the left side of the SIB,) should come
on.
If the seat relay indicator light doesn’t come on:
The board is faulty and should be replaced.
If the seat relay indicator light comes on:
(With the jumper but not with a person in the
seat) The problem is in the seat or the
wiring between the SIB and seat.
If the seat relay indicator light comes on but
none of the others do with the SIB
grounded:
The SIB is faulty and should be replaced.
If the seat relay indicator light on the SIB and
the run relay indicator light on the SIB are on
but the pedal relay indicator light and/or the
blade relay indicator light are not on,
troubleshoot the pedal and blade relay circuits
individually as follows:
If the pedal relay indicator light is off with seat
and run relay indicator lights on:
Temporarily put jumper between terminals J3-3
and J3-4 on the SIB. (The jumper can be a
thin piece of U-shaped wire inserted into the
backside of the connector.)
The pedal relay indicator light, (the second light
from the left side of the SIB,) should come on.
If the pedal relay indicator light doesn’t come
on with the jumper:
The board is faulty and should be replaced.
If the pedal relay indicator light comes on with
the jumper:
The problem is in the pedal switches at the
front of the vehicle or in the wiring from the SIB
to the pedal switches. (The arms that the
pedal switches are mounted on, must fully
contact the foot plate of the vehicle to actuate
the switches. Both switches must be actuated
to complete the circuit to the SIB.)
If the blade relay indicator light is off with seat
and run relay indicator lights on.
Temporarily put jumper between terminals J2-2
and J2-3 on SIB. (The jumper can be a thin
piece of U-shaped wire inserted into the
backside of the connector.)
The blade relay indicator light, (the third light
from the left side of the SIB,) should come on.
If the blade relay indicator light doesn’t come
on with the jumper:
The board is faulty and should be replaced.
If the blade relay indicator light comes on with
the jumper:
The problem is in the deck run switch the
wiring or terminals to the deck run switch
terminal 5 or the wiring or terminals from the
blade switch to the SIB.
The starter should crank with all the above
operating correctly.