Error Messages, Codes, and Procedures 3-143
13
Test the affected Paper Size Switch.
Run the Service Diagnostics Paper Size
Sensor test for the affected tray.
Is the paper size detected correctly
when the tray, loaded with paper, is
moved in and out?
Replace the
Engine Logic
Board. If the error
persists replace
Tray 4-5 PWB
(
page 3-29).
Go to Step 14.
14
Check the affected Paper Size Switch
connection.
Is the switch connected to the harness?
Go to Step 15. Connect the
switch. If problem
persists, go to
Step 15.
15
Check continuity between the Paper Size
Switch and the Engine Logic Board (Tray 2-
3) or Tray 4-5 PWB (Tray 4-5).
Is there continuity on each wire
between the switch <=> P/J412 (Tray 2-
3) or P/J548 (Tray 4-5)?
Go to Step 16. Repair the wiring.
16
Check for +3.3 V to the Paper Size Switch
Is there +5 V across P/J412-1 (+) <=>
ground? for Tray 2-3 or 3.3 V across P/
J548-1 for Tray 4-5.
Replace the
switch.
Replace the
Engine Logic
Board. If the error
persists replace
Tray 4-5 PWB
(
page 3-29).
Universal Tray Failure Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No