Yale 524150797 Maintenance Manual page 276

Diagnostic Trouble Codes
CAUSE B - LOWER COIL FAULT
PROCEDURE OR ACTION:
1. Measure resistance between the parallel terminal tabs at the valve coil contacts.
Is resistance 19 ± 2.0 ohms?
YES: Proceed to Cause C.
NO: Replace faulty lower coil.
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
9030-20-6
DTC 30003 (Cont)
LwrCoil
ELECTRICAL SYSTEM