Brother HL-2600CN Service Manual page 315

Error Code
Concerned Part TR Cam Clutch 3 (TRCM)
Confirm the connection of a TR cam clutch 3 connector.
Is ECN8 of IOD2 properly connected with a connector of the solenoid ?
Is ECN1 of IOD2 properly connected with 12CN of MCTL PWB 2?
Check the voltage(TRSLON-N/P)
Is a single voltage between ECN8-4 and ECN2-5 of IOD2 to be a trailing edge ?
Is a single voltage between 5 of ECN2 and 18 of IOD2 to be a rising edge ?
Is E5 error cleared ?
Job is complete.
E5
YES
YES
NO
NO
YES
NO
Connect them properly.
Is E5 error cleared ?
NO
YES
Replace TR cam clutch 3.
YES
Replace the IOD2 PWB 2.
NO
Replace the MCTL PWB 2.
MCTL
ECN1
12CN
TRSLON-P
18
18
ECN2
+24V-1
1
PGND
5
YES
Job is complete.
IOD2
ECN8
TR Cam Clutch 3
+24V-1
1
TRSLON-N
TRCM
4