Without Scan Tool

SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)

Description
If the engine starts when there is something wrong with the 4WD system, the 4WD warning lamp turns ON or flickers in the combination meter. When the system functions properly, the warning lamp turns ON when the ignition switch is turned to "ON", and it turns OFF after engine starts. To locate the cause of a problem, start the self-diagnosis function. The 4WD warning lamp in the combination meter will indicate the problem area by flickering according to the self-diagnostic results. As for the details of the 4WD warning lamp flickering patterns, refer to "Diagnostic Procedure".

Diagnostic Procedure
1. Warn up engine.
2. Move A/T selector lever to "P" position.
3. Turn 4WD shift switch to "2WD" position.
4. Turn ignition switch "ON" and "OFF" at least twice, and then turn ignition switch "OFF".
5. Turn 4WD shift switch to "AUTO" position.
6. Turn ignition switch "ON". (Do not start engine.)
7. 4WD warning lamp ON.
If 4WD warning lamp does not turn ON, refer to "4WD Warning Lamp Does Not Turn ON" 4WD Warning Lamp Does Not Turn On.
8. Move A/T selector lever to "R" position.
9. Turn 4WD shift switch to "2WD", "AUTO" and "2WD" in order.
10. Move A/T selector lever to "D" position.
11. Turn 4WD shift switch to "LOCK", "AUTO" and "LOCK" in order.
12. Move A/T selector lever to "N" position.
13. Turn 4WD shift switch to "AUTO" position.
14. Move A/T selector lever to "P" position.
15. Read the flickering of 4WD warning lamp.
Refer to "Judgement Self-diagnosis".

Judgement Self-diagnosis















When a malfunction is detected, the malfunction route is indicated by flickering of the 4WD warning lamp.

CAUTION:
^ If "CAN communication" is displayed with other DTCs, first perform the trouble diagnosis for CAN communication line.
^ If "ABS operation signal", "VDC operation signal" or "TCS operation signal" is displayed, first perform the trouble diagnosis for ABS system.
^ If "Output shaft revolution signal" is displayed, first perform the trouble diagnosis for A/T system.

NOTE:
^ If "actuator position switch" or "actuator circuit" is displayed, first erase self-diagnostic results. ("Actuator position switch" or "actuator circuit" may be displayed after installing transfer control unit or transfer assembly.)
^ If "clutch pressure switch" or "line pressure switch" is displayed only while driving in reverse, check the continuity of "R" position on A/T PNP switch. When there is nothing wrong with the electrical system, check the hydraulic system.

ERASE SELF-DIAGNOSIS
^ In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is stored into the control unit as necessary during use by the user. This memory is not erased no matter how many times the ignition switch is turned ON and OFF.
^ However, this information is erased by turning ignition switch "OFF" after performing self-diagnostics or by erasing the memory using the CONSULT-II.