Dtc 30035 Brake - Yale MPB045VG Maintenance Manual

ELECTRICAL SYSTEM
POSSIBLE CAUSE
A. WIRING FAULT
B. BRAKE COIL FAULT
C. FAULTY TRACTION CONTROLLER
COMPONENT OPERATIONAL CHECK
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
SystemYRM .
NO: Proceed to Step 2.
2. Re-key the vehicle.
Is the code still present?
YES: Proceed to CAUSE A.
NO: Fault may be intermittent.
CAUSE A - WIRING FAULT
PROCEDURE OR ACTION:
NOTE: Perform Step 1 with key in ON position.
1. Disconnect CPS01 and measure voltage between CPS01, socket 1 and B(-). Note voltage reading, reconnect
CPS01, cycle key switch. Disconnect brake coil connector CRP04-A and measure voltage between CRP04-A,
socket 1 and B(-).
Is voltage same as key switch input?
YES: Disconnect battery and proceed to CAUSE B.
NO: Inspect circuit 239 for open or short.
CAUSE B - BRAKE COIL FAULT
PROCEDURE OR ACTION:
1. Measure resistance between CPS01, socket 5 and CRP04-A, socket 1.
Is resistance 23 ± 2.3 ohms?
YES: Proceed to CAUSE C.
NO: Replace faulty brake 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
include an accurate problem description leading to controller replacement.
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
Confidential/Proprietary - Do Not Copy or Duplicate
Please refer to the end of this procedure for supporting diagrams.
DTC 30035
Brake
NOTE
Diagnostic Trouble Codes
9030-20-9