STATUS
CODE
DISPLAY MESSAGE RECOVERY METHOD CIRCUIT
65527-5 65527 Re-key only Pump
Node 5
DESCRIPTION BEHAVIOR
CAN messages are not being received from other
nodes - (Pump Node 5)
If from Pump, Hydraulic motor stops, all valves
closed, Limited Traction to Mode 1
Probable Causes and Test Procedures
1. Re-key the vehicle, is the communication code still present?
YES- Proceed to step 2.
NO- Problem is intermittent or noise related, proceed to step 3.
2. Are there any other codes related to indicated node?
YES- Troubleshoot other codes before communication codes. (NOTE: Multiple communication co-
des indicate a system CANbus failure. See CANbus Test.)
NO- Proceed to step 3.
3. Verify connections on pump controller:
a. Are there any bent / broken pins, poor seating, or wiring damage?
YES- Replace any bent / broken pins, with new properly crimped connections.
NO- Proceed to step 4.
4. Verify proper KEY-IN voltage to pump controller:
a. Ensure B+ voltage exists between Pin 1 and the B− terminal of the controller with KEY-SW ON.
YES- Proceed to step 5.
NO- Proceed to step 4b.
b. Inspect GND (NEG-2 BLK) wire for continuity between B− Battery connector and controller B− ter-
minal.
YES- Proceed to step 4c.
NO- Repair NEG-2 wire / crimp terminal / check bolt torque.
c. Verify power wire continuity from Pin 1 to KEY-SW IGN terminal.
d. Verify KEY-SW continuity between BAT & IGN terminals when switched to "ON."
YES- Check for blown FU1 fuse.
NO- Replace faulty KEY-SW Inspect GND (NEG-2 BLK) wire, and POS (RED 010) for
proper connections.
2200 YRM 1415 Troubleshooting
119
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