DTC 524275-4 - Mast Tilt Position Sensor OORL
POSSIBLE CAUSE
A. SENSOR SUPPLY OPEN CIRCUIT
B. SENSOR SIGNAL OPEN CIRCUIT
C. SENSOR SIGNAL SHORTED TO SENSOR GROUND
D. SENSOR SIGNAL SHORTED TO FRAME GROUND
E. SENSOR FAILURE
F. FUNCTIONAL FAILURE IN CONTROLLER
NOTE
Please refer to the end of this procedure for supporting diagrams.
COMPONENT OPERATIONAL CHECK
PROCEDURE OR ACTION:
1. Turn power to OFF for no less than 30 seconds, and then to ON to clear displayed DTC.
Does reported DTC reoccur?
YES: Go to Step 2.
NO: Problem not verified. Resume operation.
2. Conduct a quick visual inspection of all connectors/wiring associated with the displayed fault code.
Are any faults detected/observed?
YES: Repair/replace connector or wiring associated with faults found. See Electrical System 2200 YRM 1142.
NO: Go to Cause A.
CAUSE A - SENSOR SUPPLY OPEN CIRCUIT
PROCEDURE OR ACTION:
1. Turn truck power ON.
2. Disconnect indicated sensor connector.
3. Change DMM to volts scale.
4. At sensor harness connector, measure voltage across sensor supply pin (+) and sensor ground pin ( ).
Is voltage approximately 5Vdc?
YES: Sensor supply circuit wiring is OK. Go to Cause B.
NO: Go to Step 5.
5. Move negative ( ) meter lead to a clean frame ground.
Is voltage approximately 5Vdc?
YES: Sensor return has open circuit. Locate and repair/replace open wire/connection. See Wire Harness
Repair 2200 YRM 1128.
NO: Sensor supply has open circuit. Locate and repair/replace open wire/connection. See Wire Harness Repair
2200 YRM 1128.
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-20-124 Confidential/Proprietary - Do Not Copy or Duplicate