Yale 524150797 Maintenance Manual page 293

ELECTRICAL SYSTEM
CAUSE B - ENCODER FAULT
PROCEDURE OR ACTION:
NOTE: Connect battery.
NOTE: Operate traction motor while performing this test. Voltage output will alternate between 5 Vdc and 0 Vdc
as motor rotates.
1. Disconnect the Combination controller connector CPS01 and measure voltage between socket 13, 14, and
B(-).
Does voltage signal relate to traction motor movement?
YES: Proceed to Cause C.
NO: Replace faulty encoder.
CAUSE C - FAULTY TRACTION 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 30062 (Cont)
Encoder
Diagnostic Trouble Codes
9030-20-23