Maintenance Mode; General Testing; Horn Button Method; Deadman Pedal Method - Toyota 7BPUE15 Service Manual

Section 6. Codes and Tests

Maintenance Mode

Maintenance Mode
Maintenance mode allows you to test individual
circuits of switches and inputs while the lift
truck is stationary or under normal operation.
For example, if you suspect the lift switch is
bad, you can verify the switch circuit input to
the steer/tractor manager.
Enter the maintenance mode. See "Enter"
below. There are two methods for entering
Maintenance Mode, using the deadman pedal or
using the horn button. After you enter
maintenance mode, follow the instructions in

"General Testing."

1. Turn the key switch ON. The horn beeps
three (3) times after self-diagnostics is
complete.
2. Within 10 seconds after the three (3) horn
beeps, step on and off the deadman pedal
3-6 times. The horn will start clicking
when the truck is in maintenance mode.
N : The deadman circuit must be
OTE
transitioned 12 times to enter
maintenance mode. If both switches (S2
and S23) are working properly, you only
need to step on and off the pedal 3
times. If one is not working, you need to
step on and off 6 times.

Horn Button Method

1. Turn the key switch OFF.
2. Hold the horn button and turn the key
switch ON. Do not release the horn button.
3. When the BDI display clears, release the
horn button.
4. While the BDI display is clear, press and
release the horn button once. Each time
you press the horn button, one BDI LED
lights.
Toyota Orderpicker Model 7BPUE 15 Service Manual
5.
Wait for the BDI display to clear. A clear
display indicates the first digit was
accepted.
N : You must enter the second digit within 3
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seconds of entering the first digit.
6. Press and release the horn button once
more.
7. Wait a few seconds for the BDI display to
clear again. All the BDI LEDs will flash to
indicate the password was accepted and
the truck is in Maintenance Mode.
General Testing
1. Enter maintenance mode. See "Enter" on
page 6-4.
2. Request a n operation. e.g.-travel,
When the switch turns on or off, or an
analog input crosses a threshold, the
truck determines whether the circuit is
good or bad.
If the circuit is
the heartbeat LEDs on the steer/tractor
manager and carriage manager, and the
steer indicator LEDs on the operator
display blink during the operator request.
If the circuit is
click and the LEDs do not blink during the
operator request.
The following standard switches can be tested
in maintenance mode:
Steer Home Switch (S8)
Horn (S3)
24" Limit (S6); see Note below
60" Height (S7); see Note below
Emergency power off (S2 1)
N : To test S6, S7, S24, S25, S29 and S60,
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step on deadman pedal and lift the
operator platform. Each switch is tested
a s it passes its activation rail.
The following optional switches can also be
tested in maintenance mode:
00700-CL222-05, 1 5 March 2005
lift, etc.
good, the horn clicks and
bad, the horn does not