CAUSE A - CANBUS COMMUNICATION FAULT
PROCEDURE OR ACTION:
NOTE: Perform Step 1 and Step 2 with key in ON position.
NOTE: Connector CJ2 is an eight position connector.
1. Disconnect the tiller card connector CJ2 and measure voltage between connector CJ2, socket 2 and B(-).
Is CAN HI voltage approximately 2.5 Vdc?
YES: Proceed to Step 2.
NO: Inspect CAN HI circuit for open or short. If voltage is 0 volts, the CAN HI circuit is shorted to ground or
open. If voltage is above 5 volts, the CAN HI circuit is shorted to power.
2. Measure voltage between the tiller card connector CJ2, socket 1 and B(-).
Is CAN LO voltage approximately 2.5 Vdc?
YES: Disconnect battery and proceed to Step 3.
NO: Inspect CAN LO circuit for open or short. If voltage is 0 volts, the CAN LO circuit is shorted to ground or
open. If voltage is above 5 volts, the CAN LO circuit is shorted to power.
3. Measure resistance between the tiller card connector CJ2, socket 1 and socket 2.
Is resistance 60 ± 6 ohms?
YES: No communication faults are present, connect battery and proceed to CAUSE B.
NO: If resistance is 120 ohms, the CANbus has an open circuit or a missing or damaged termination resistor.
If resistance is 0 ohms, the CANbus circuits are shorted together.
CAUSE B - TILLER CARD WIRING FAULT
PROCEDURE OR ACTION:
NOTE: Perform Steps 1 through 4 with key in ON position.
1. Open control handle, observe tiller card assembly.
Is CRS03 connected to Tiller Card JP1?
YES: Proceed to Step 2.
NO: Connect tiller harness to JP1.
2. With control handle open, observe tiller card LCD display and re-key truck.
Does LCD display illuminate?
YES: Proceed to Step 3.
NO: Proceed to Step 4.
3. Continue to observe tiller card LCD display and re-key truck.
Is LCD display properly configured?
YES: Proceed to CAUSE C.
NO: Refer to 2200YRM 1507 to configure tiller card.
4. Disconnect CRS03 from tiller card JP1. Measure voltage between socket 1 and B(-).
Is voltage same as battery voltage?
YES: Disconnect battery and proceed to Step 5.
NO: Inspect circuit 010 between key switch TS05 and CRS03 for open or short.
5. Measure resistance between the tiller card connector JP1, socket 2 and B(-).
Is resistance ≤1 ohm?
YES: Proceed to CAUSE C.
NO: Inspect ground circuit 101 for open, short, or source of excessive resistance.
ELECTRICAL SYSTEM Diagnostic Trouble Codes
Check the Service Manual section in Yale Axcess Online for possible updates and check pertinent Bulletins
Confidential/Proprietary - Do Not Copy or Duplicate 9030-20-41
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