Code No. P0777: SL1 MAX Pressure Failure




OPERATION


The ECU detects the current gear/speed according to the output signals from the input and output shaft speed sensor.

DIAGNOSIS CODE SET CONDITIONS




PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. Solenoid check


Check the pressure control solenoid SL1 and the shift solenoid SR, SB.

Q. Is the check result normal?

Go to Step 2.
Replace the valve body assembly.

STEP 2. Check whether the diagnosis code is set again.


(1)Erase the set diagnosis code.
(2)Turn the ignition switch to the "LOCK" (OFF) position.
(3)Turn the ignition switch to the "ON" position.
(4)Check again if the diagnosis code is set.

Q. Is diagnosis code No. P0777 set?

Replace the valve body assembly or the transmission assembly.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction).





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