ELECTRONIC 4WD CONTROL SYSTEM ON-BOARD DIAGNOSIS

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Reading DTCs Procedure

1.  Connect the M-MDS to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “4X4”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “4X4”.
3.  Select “Self Test”.

3.  Verify the DTC according to the directions on the screen.

•  If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.

4.  After completion of repairs, clear all DTCs stored in the 4WD CM. (See Clearing DTCs Procedures.)


Clearing DTCs Procedures

1.  Connect the M-MDS to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “4X4”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “4X4”.
3.  Select “Self Test”.

3.  Verify the DTC according to the directions on the screen.

4.  Press the clear button on the DTC screen to clear the DTC.

5.  Turn the ignition switch to the LOCK position.

6.  Turn the ignition switch to the ON position and wait for 5 s or more.

7.  Perform DTC inspection. (See Reading DTCs Procedure.)

8.  Verify that no DTCs are displayed.


DTC Table

DTC

Diagnosis system component

Page
P1887
4WD solenoid circuit
(See DTC P1887)
P1888
Differential oil temperature sensor circuit
(See DTC P1888)
U0073
CAN system communication error
(See PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION [MULTIPLEX COMMUNICATION SYSTEM])
U0100
Communication error to PCM
(See PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION [MULTIPLEX COMMUNICATION SYSTEM])
U0101
Communication error to TCM
(See PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION [MULTIPLEX COMMUNICATION SYSTEM])
U0121
Communication error to DSC/RSC HU/CM
(See PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION [MULTIPLEX COMMUNICATION SYSTEM])
U0155
Communication error to instrument cluster
(See PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION [MULTIPLEX COMMUNICATION SYSTEM])