October 2012
2-82
ColorQube 8570/8870 Service Manual
99,037, 99,038, 99,039, 99040
Revised, 3rd Revision - Xerox Internal Use Only
Fault Messages and Codes
Replace the Left Side Wiring Harness.
99,039, 99040 PEST - Process Motor Disconnect
The Process Motor error has occurred. The Motor is not drawing the expected power from the
Power Supply. The following troubleshooting applies to these errors.
Initial Actions
• Reboot the printer and verify the error persists.
• Check the Process Motor’s wiring connection.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts (Chapter 5 - Parts List)
• Process Drive with Gear Box and Motor, PL 4.1 Item 13
• Electronics Module, PL 5.1 Item 1
• Power Control Board, PL 5.1 Item 8
• Harness, Right Side Power Control, PL 5.1 Item 13
Wiring and Plug/Jack References (Chapter 7 - Wiring Data)
• Figure 3, Front Side Wire Routing
• Figure 7, Drum Heater Load Dump, Motors, Head Maintenance Clutch, Strip Solenoid
Procedure
Check the Process Motor wiring harness P/J118. Is the connection secure and undam-
aged?
YN
Reseat and/or replace the wiring harness.
Check resistance on the Process Motor wiring harness connector P/J118. Is it open or
shorted?
YN
Check resistance on the Right Side Wiring Harness connector P/J125 (pins 1-6). Is it
open or shorted?
YN
Troubleshooting complete.
Replace the Right Side Wiring Harness.
Replace the Process Motor (REP 4.13. Does the error persist?
YN
Troubleshooting complete.
Replace the Power Control Board (REP 5.6) (Electronics Module)
Table 1 Applicable Fault Codes
99,039 PEST - Process Motor Disconnect
99,040 PEST - Process Motor Short
A
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