| Condition |
Possible cause |
| Higher than specification |
Higher in R, D, and M (1GR) position |
Line pressure is low |
- Oil pump wear
- ATF leakage from oil pump, control valve body, and transaxle case
- Pressure regulator valve sticking
- TR control valve sticking
- Pressure control solenoid operation malfunction
|
- Low and reverse brake slippage, and damage of one - way clutch
|
| Higher in D and M (1GR) position |
- Low clutch slippage
- One-way clutch damage
|
| Higher in R position |
Perform road test to determine whether problem is in R-3-5 brake or low and reverse brake
- Engine brake operates in M (1GR) position
- Engine braking does not operate in M (1GR) position
- Low and reverse brake slippage
|
| Lower than specification |
Lower in R, D, and M (1GR) position |
- Engine malfunction
- One-way clutch slippage in torque converter
|