Yale 524150797 Maintenance Manual page 322

Diagnostic Trouble Codes
CAUSE D - TRACTION INTERLOCK SENSOR FAULT
PROCEDURE OR ACTION:
1. Remove helmet plate from tiller arm base. Move tiller arm up and down and observe LED light in traction con-
troller interlock sensor.
Does light turn OFF when tiller arm is withing operational region?
YES: Proceed to Cause E.
NO: Proceed to Step 2.
2. Measure distance between sensor and helmet plate.
Is helmet plate within specifications?
YES: Replace faulty sensor.
NO: Adjust sensor and torque as needed. Use Electrical System manual for reference.
CAUSE E - TILLER CONTROL CARD FAULT
PROCEDURE OR ACTION:
1. Replace tiller control card. Make sure to indicate the DTC code(s) on the warranty claim to include an accu-
rate problem description leading to card replacement.
CAUSE F - FAULTY TRACTION CONTROLLER
PROCEDURE OR ACTION:
1. Replace faulty handle. Make sure to indicate the DTC code(s) on the warranty claim to include 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
9030-20-52
(Cont)
ELECTRICAL SYSTEM