Troubleshooting 2200 YRM 1067
Dash Display
Controller LED Handset or PC
AL01 1Flash SERIAL ERROR #1
CONDITION
Connection/communication error between control
cardandtractioncontroller.
TRUCK RESPONSE
Traction and hoist functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• Loose or damaged electrical connection between con-
trol card and controller.
Verify connection at controller.
Verify wire harness connection at base of steer han-
dle.
Verify connection at control card.
• Damaged or defective control card.
Measure voltage at pin 5, connector C, on the con-
troller. With control card disconnected, this should
be about 12V; with the card connected, it should be
about 5V.
If values are not within specification, check the func-
tionality of the control card. Refer to Control Card
Functional Test in this section.
LOGIC
No information or incorrect
information has been sent from the
control card to controller.
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