Transfer Control Unit

Transfer Control Unit

DIAGNOSTIC PROCEDURE
1. INSPECTION START
Do you have CONSULT-II?
YES or NO
YES >> GO TO 2.
NO >> GO TO 3.

2. PERFORM SELF-DIAGNOSIS (WITH CONSULT-II)

With CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with CONSULT-II.
3. Touch "ERASE".
4. Turn ignition switch "OFF" and wait at least 10 seconds.
5. Perform the self-diagnosis again.
Is the "CONTROL UNIT 1 [P1802]", "CONTROL UNIT 2 [P1803]", "CONTROL UNIT 3 [P1804]" or "CONTROL UNIT 4 [P1809]" displayed?
YES >> Replace transfer control unit. Refer to "TRANSFER CONTROL UNIT".
NO >> Inspection End.

3. PERFORM SELF-DIAGNOSIS (WITHOUT CONSULT-II)

Without CONSULT-II
1. Perform the self-diagnosis and then erase self-diagnostic results. Refer to TF-46, "SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)" [1][2][3]Diagnostic Trouble Code Descriptions and TF-49, "ERASE SELF-DIAGNOSIS". With Manufacturer's Scan Tool (Consult II)
2. Perform the self-diagnosis again.
Do the self-diagnostic results indicate AD converter?
YES >> Replace transfer control unit. Refer to "TRANSFER CONTROL UNIT".
NO >> Inspection End.