Inspection

DIFFERENTIAL: DIFFERENTIAL SYSTEM: INSPECTION

1. INSPECT 4 WHEEL DRIVE CONTROL SWITCH





(a) Using an ohmmeter, measure the resistance between the terminals.





If the result is not as specified, replace the four wheel drive control switch or bulb.

2. INSPECT DIFFERENTIAL VACUUM ACTUATOR ASSEMBLY





(a) Measure the resistance between terminals 1 - 2.

Standard resistance:

0.1 to 100 Ohms

(b) Measure the resistance between terminals 1 or 2 and the body ground.

Standard resistance:

5 MOhms or more

If the result is not as specified, replace the differential vacuum actuator assembly.

(c) Apply the battery positive voltage between terminals 1 - 2, and check the actuator operation by sound, actuator status and resistance between terminals 3 - 4, 5 - 4 and 6 - 4.





3. INSPECT FOUR WHEEL DRIVE CONTROL ECU

(a) Connect the wire harness side connector to the four wheel drive control ECU and inspect the wire harness side connector from the back side, as shown.





STANDARD VALUE OF ECU TERMINAL





4. INSPECT CENTER DIFFERENTIAL LOCK SWITCH (w/ Differential Lock)

(a) Check the resistance.





(1) Measure the resistance using an ohmmeter.

Standard:





If the result is not as specified, replace the center differential lock switch.

5. INSPECT NO. 1 TRANSFER INDICATOR SWITCH (w/ Differential Lock)

(a) Check the resistance.





(1) Measure the resistance using an ohmmeter.

Standard:





If the result is not as specified, replace the No. 1 transfer indicator switch.