Yale 524150797

DTC 30003
LwrCoil
POSSIBLE CAUSE
A. LOWER COIL WIRING FAULT
B. LOWER COIL FAULT
C. FAULTY TRACTION CONTROLLER
NOTE
Please refer to the end of this procedure for supporting diagrams.
COMPONENT OPERATIONAL CHECK
NOTE: Always check battery condition and state of charge before performing electrical troubleshooting. A faulty
or low charged battery will cause electrical features to not operate as designed and give incorrect readings while
performing electrical tests.
PROCEDURE OR ACTION:
1. Conduct a visual inspection of all connectors/wiring associated with the fault code.
Are any faults detected/observed?
YES: Repair/replace connector or wiring associated with faults found. Refer to the appropriate Electrical
System YRM ..
NO: Proceed to Step 2.
2. Re-key the vehicle.
Is the code still present?
YES: Proceed to Cause A.
NO: Problem may be intermittent.
CAUSE A - LOWER COIL WIRING FAULT
PROCEDURE OR ACTION:
NOTE: Disconnect lower coil connector CRS05 located within hydraulic pump motor and turn key to ON position.
1. Measure voltage between lower coil connector CRS05, socket 1 and B(-).
Is voltage 24 ± 2.5 Vdc?
YES: Disconnect battery and proceed to Step 2.
NO: Inspect circuit 239 for open or short.
2. Disconnect lower coil connector CPS01 and measure continuity between CRS05, socket 2 and CPS 01,
socket 3.
Is resistance <1 ohm?
YES: Connect CPS01, connect battery, and proceed to Step 3.
NO: Inspect circuit 801 for open, short, or source of excessive resistance.
3. Measure voltage between CRS05, socket 2 and B(+) while operating tiller card lower switch.
Is voltage 24 ± 2.5 Vdc?
YES: Disconnect battery and proceed to Cause B.
NO: Proceed to Cause C.
ELECTRICAL SYSTEM Diagnostic Trouble Codes
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-20-5