Initial Inspection and Diagnostic Overview
A: INSPECTION1. GENERAL PRECAUTION
Road tests should be conducted to properly diagnose the condition of the automatic transmission.
CAUTION: When performing test, do not exceed posted speed limit.
2. SHIFT PATTERNS
Check "kick-down".
D range: 1st 2nd 3rd 4th
3 range: 1st 2nd 3rd <- 4th
2 range: 2nd <- 3rd <- 4th
1 range: 1st <- 2nd <- 3rd <- 4th
3. ENGINE BRAKE OPERATION
Engine brake operation:
D range -> 4th gear
3 range -> 3rd gear
2 range -> 2nd gear
1 range -> 1st gear
4. AWD 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.