Dtc 30062 Encoder - Yale 524150797 Maintenance Manual

Diagnostic Trouble Codes
POSSIBLE CAUSE
A. ENCODER WIRING FAULT
B. ENCODER FAULT
C. FAULTY TRACTION CONTROLLER
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 - ENCODER WIRING FAULT
PROCEDURE OR ACTION:
1. Disconnect the traction motor encoder connector CPS03 and measure voltage between socket 1 and B(-).
Is voltage 5 ± 0.5 Vdc?
YES: Proceed to Step 2.
NO: Inspect circuit 250 for open or short.
2. Measure voltage between the encoder connector CPS03, socket 1 and socket 4.
Is voltage 5 ± 0.5 Vdc?
YES: Disconnect battery and proceed to Step 3.
NO: Inspect ground circuit 102 for open or short.
3. Disconnect the Combination controller connector CPS01. Measure resistance between socket 32 of the Com-
bination controller connector and socket 3 of the encoder connector CPS03.
Is resistance <1 ohm?
YES: Proceed to Step 4.
NO: Inspect signal circuit 578 for open or source of excessive resistance.
4. Measure resistance between socket 31 of the Combination controller connector CPS01 and socket 2 of the
encoder connector CPS03.
Is resistance <1 ohm?
YES: Reconnect the encoder connector CPS003, battery, and proceed to Cause B.
NO: Inspect signal circuit 577 for open or source of excessive resistance.
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
9030-20-22
Please refer to the end of this procedure for supporting diagrams.
DTC 30062
Encoder
NOTE
ELECTRICAL SYSTEM