3C
4WD Control System Operation Inspection
NOTE:
• If it is difficult to shift from “2H” to “4H” while vehicle is moving, stop vehicle and push and release “4WD” switch once with vehicle at stop.
• If it is difficult to shift transfer from “4H” to “2H” while vehicle is moving, try accelerating and decelerating several times after pushing “2WD” switch. Be sure to wait until traffic conditions allow you to accelerate and decelerate safely before using this procedure.
• If it is difficult to shift between from “4H” to “4L” or from “2H” to “4L”, try moving vehicle slowly back or forth a few feet while 4WD low indicator is blinking. Be sure to wait until traffic conditions allow you to move vehicle safely before using this procedure.
• Also, when shifting to the “4L” position, gear grinding noise may be generated under low temperature condition. In that case, move the vehicle backward slowly.
• 4WD indicator blinks when transfer is shifting from “2H” to “4H” or from “4H” to “2H”.
• 4WD low indicator blinks and warning buzzer sounds during shift operation between “4H” or “2H” and “4L”.
• For details of 4WD indicator, 4WD low indicator and warning buzzer operation, refer to “Indicator and Warning Buzzer Operation” in 4WD Control System Description .
1) Check the transfer oil level insufficient or incorrect referring to Transfer Gear Oil Change and transfer mountings for wear or looseness before performing test-driving.
2) Confirm that transfer is at 2H position and ignition switch is at OFF position.
3) Check 4WD indicator and 4WD low indicator as follows.
a) Turn ignition switch to ON position.
b) Check that 4WD indicator and 4WD low indicator turns on for about 2 seconds and then turns off.
If any faulty condition is found, proceed to 4WD Indicator and/or 4WD Low Indicator Does Not Come ON at Ignition Switch ON or 4WD Indicator and/or 4WD Low Indicator Come ON Steady .
4) Inspect shift operation from 2H to 4H as follows.
a) Start engine.
b) Make sure that vehicle speed is less than 100 km/h (60 mph).
c) Confirm that transfer shift position is 2H.
d) Position front wheels straight ahead.
e) Push “4WD” switch.
f) Check that 4WD indicator flashes, and then comes on steady.
5) Inspect shift operation from 4H to 4L as follows.
a) Stop vehicle completely with engine running.
b) Position front wheels straight ahead.
c) Confirm that transfer shift position is 4H.
d) Place A/T select lever in “N” position or depress clutch pedal fully.
e) Push “4WD-L” switch.
f) Check that 4WD low indicator flashes, and then comes on steady.
6) Inspect shift operation from 4L to 4H as follows.
a) Stop vehicle completely with engine running.
b) Position front wheels straight ahead.
c) Confirm that transfer shift position is 4L.
d) Place A/T select lever in “N” position or depress clutch pedal fully.
e) Push “4WD” switch.
f) Check that 4WD low indicator flashes, and then not comes on.
7) Inspect shift operation form 4H to 2H as follows.
a) Confirm that engine is running and transfer shift position is 4H.
b) Position front wheels straight ahead.
c) Push “2WD” switch.
d) Check that 4WD indicator flashes, and then not comes on.
8) Inspect shift operation from 2H to 4L as follows.
a) Stop vehicle completely with engine running.
b) Position front wheels straight ahead.
c) Confirm that transfer shift position is 2H.
d) Place A/T select lever in “N” position or depress clutch pedal fully.
e) Push “4WD-L” switch.
f) Check that 4WD low indicator and 4WD indicator flash, and then come on steady.
9) Inspect shift operation from 4L to 2H as follows.
a) Stop vehicle completely with engine running.
b) Position front wheels straight ahead.
c) Confirm that transfer shift position is 4L.
d) Place A/T select lever in “N” position or depress clutch pedal fully.
e) Push “2WD” switch.
f) Check that 4WD low indicator flashes, and then 4WD low indicator and 4WD indicator not come on.