Yale 524150797 Maintenance Manual page 309

ELECTRICAL SYSTEM
CAUSE A - LOW BATTERY CONDITION
PROCEDURE OR ACTION:
1. Measure voltage between B(-) at the controller and FU1 (above controller).
Is voltage 25 ± 0.5 Vdc?
YES: Proceed to Cause B.
NO: Charge battery.
CAUSE B - CONTROLLER WIRING FAULT
PROCEDURE OR ACTION:
NOTE: Key in OFF position.
1. Measure voltage between the traction controller B(+) terminal and B(-).
Is precharge voltage same as battery voltage?
YES: Proceed to Cause C.
NO: Inspect B(+) cable for damage or loose connections.
CAUSE C - FAULTY CONTROLLER
PROCEDURE OR ACTION:
1. If no faults are found, replace controller. Make sure to indicate the DTC code(s) on the warranty claim to in-
clude an accurate problem description leading to controller replacement.
END POSSIBLE CAUSES
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
DTC 30086 (Cont)
LowBatt
Diagnostic Trouble Codes
9030-20-39