Road Test

DESCRIPTION
Road tests should be conducted to properly diagnose the condition of the automatic transmission.

NOTE: When performing test, do not exceed posted speed limit.

CHECKING FOR SHIFT PATTERNS
Check "kick-down" and engine brake operation.
D-range: Shifts from 1st thru 4th
3-range:
Shifts from 1st thru 4th (Manual switch OFF)
Shifts from 2nd thru 4th (Manual switch ON)
1-range: shifts from 1st thru 4th


CHECK FOR THE 4WD FUNCTION
If "tight-corner braking" occurs when the steering wheel is fully turned at low speed:
1. Determine the applicable trouble code and check the corresponding duty solenoid C (transfer) for improper operation.
2. If the solenoid is operating properly, check transfer clutch pressure.
3. If oil pressure is normal but "tight-corner braking" occurs:
- Check the transfer control valve for sticking, and the transfer clutch facing for wear.

AUTOMATIC SHIFT CHARACTERISTICS
Check the automatic shift characteristics according to the following charts.