Yale 524150797 Maintenance Manual page 315

ELECTRICAL SYSTEM
NO: Disconnect battery and proceed to Step 5.
4. Measure voltage between CRS03, socket 4 and B(-).
Is voltage 12 ± 1.5 Vdc?
YES: Proceed to Cause D.
NO: Disconnect battery and proceed to Step 6.
5. Disconnect controller connector CPS01, encoder CPS03, and battery display CRS07. Measure resistance be-
tween CRS07, socket 5 and CPS01, socket 25.
Is resistance ≤ 1 ohm?
YES: Proceed to Cause D.
NO: Inspect circuit 032 for open, short, or source of excessive resistance.
6. Disconnect controller connector CPS01, encoder CPS03, and battery display CRS07. Measure resistance be-
tween CPS03, socket 1 and CPS01, socket 26.
is resistance ≤ 1 ohm?
YES: Proceed to Cause D.
NO: Inspect circuit 250 for open, short, or source of excessive resistance.
CAUSE B - BATTERY DISPLAY FAULT
PROCEDURE OR ACTION:
1. If faults are found when reconnecting, replace BDI. Make sure to indicate the DTC code(s) on the warranty
claim to include an accurate problem description leading to controller replacement.
CAUSE C - ENCODER FAULT
PROCEDURE OR ACTION:
1. if faults are found when reconnecting, replace encoder. make sure to indicate the DTC code(s) on the war-
ranty claim to include an accurate problem description leading to controller replacement.
CAUSE D - TRACTION CONTROLLER FAULT
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 and 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 30090 (Cont)
12 Vdc / 5 Vdc Supply Output
Diagnostic Trouble Codes
9030-20-45