Dtc 30080 30082 30083 - Overheat - Yale MPB045VG Maintenance Manual

ELECTRICAL SYSTEM
POSSIBLE CAUSE
A. WIRING FAULT
B. 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 Step 3.
NO: Fault may be intermittent.
3. Reduce truck usage and allow controller to cool for approximately 15 minutes. System will recover once
temperature is below 115°C (239°F) for the traction motor and 85°C (185°F) for the traction controller.
Is the code still present?
YES: Proceed to CAUSE A.
NO: Fault may be intermittent. Review truck usage, weight load, and rated capacities.
CAUSE A - WIRING FAULT
PROCEDURE OR ACTION:
1. Perform Voltage Checks as indicated in the Basic Electrical Troubleshooting section.
Did code clear?
YES: Clear error log and verify correct operation.
NO: Disconnect battery and proceed to Step 2.
2. Disconnect CPS01 and CPS02. Measure resistance between CPS01, socket 8 and CPS02, socket 1.
Is resistance ≤ 1 ohm?
YES: Connect CPS01 and proceed to Step 3.
NO: Inspect circuit 367 for open, short, or source of excessive resistance.
3. Measure resistance between CPS02, socket 2 and B(-).
is resistance ≤ 1 ohm?
YES: Proceed to CAUSE B.
NO: Inspect circuit 101 for open or shorts.
CAUSE B - 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
DTC 30080 30082 30083
Please refer to the end of this procedure for supporting diagrams.
OverHeat
NOTE
Diagnostic Trouble Codes
9030-20-31