Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

1. 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





Normal Pattern





Power Pattern

Check "kick-down".
D range: 1st -> 2nd -> 3rd -> 4th
D range: 1st <- 2nd <- 3rd <- 4th
3 range: 1st 2nd -> 3rd -> 4th
3 range: 1st 2nd <- 3rd <- 4th
2 range: 2nd -> 3rd -> 4th
2 range: 2nd <- 3rd <- 4th
1 range: 1st -> 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 transfer duty solenoid 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.