damage. Repair or replace battery.
• Defective or damaged connection to battery.
Inspect cable crimps and cables from battery to
connector.
Inspect cable crimps and cables frombattery contactor
to controller and contactor.
Dash Display
Controller LED
Handset or PC
CONDITION
AL01
1 Flash
VACC NOT OK
Connection/communication error between tiller card and
traction controller.
TRUCK RESPONSE
Traction and hoist functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• Control card throttle calibration is out of range.
Install handset. Go to tester function of handset.
If accelerator output is >1V (20%) and the enable
switch is open, recalibrate control card.
• Control card throttle damaged or defective.
If card cannot be recalibrated, replace card.
Dash Display
Controller LED
Handset or PC
CONDITION
AL01
1 Flash
PUMP VACC NOT OK
Connection/communication error between control
card and traction controller.
TRUCK RESPONSE
Traction and hoist functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• A lift/lower switch is damaged or defective.
Install handset. Go to tester function. Check
lifting control and EVP voltage.” Check on/off
switches for smooth, linear operation.
Replace damaged switches.
• Control card lift/lower switch calibration is out of range.
Install handset. Go to tester function. Check lifting
control and EVP voltage. Output of hydraulic
controls should be less than 1V (20%) at neutral.
Recalibrate control card.
• Control card is damaged or defective.
Replace card.
Dash Display
Controller LED
Handset or PC
CONDITION
AL01
1 Flash
FORW + BACK
Connection/communication error between control
card and traction controller.
TRUCK RESPONSE
Traction and hoist functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• Control card throttle device is damaged or defective.
Install handset. Go to tester function. If forward
switch and backward switch are both on at the
same time, card is damaged.
Replace control card.
Dash Display
Controller LED
Handset or PC
CONDITION
AL01
1 Flash
SERIAL ERROR #1
Connection/communication error between control
card and traction controller.
TRUCK RESPONSE
Traction and hoist functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• Loose or damaged electrical connection between
control card and controller.
Verify connection at controller.
Verify wire harness connection at base of steer handle.
Verify connection at control card.
• Damaged or defective control card.
Measure voltage at pin 5, connector C, on the
controller. With control card disconnected, this
FOR REFERENCE ONLY 5/4/10 Rev A
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