P0776

DTC P0776 Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)

DESCRIPTION
The ECM uses signals from the output shaft speed sensor and input speed sensor to detect the actual gear position (1st, 2nd, 3rd, 4th or 5th gear).

Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical problems of the shift solenoid valves, valve body or automatic transmission (clutch, brake or gear, etc.).





MONITOR DESCRIPTION
This DTC indicates a stuck ON malfunction of the shift solenoid valve SL2.

The ECM commands gear shifts by turning the shift solenoid valves ON/OFF. When the gear position commanded by the ECM and the actual gear position are not the same, the ECM illuminates the MIL and stores the DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

Part 1:

Part 2:

TYPICAL MALFUNCTION THRESHOLDS

Part 1:

Part 2:

INSPECTION PROCEDURE
1. ACTIVE TEST

HINT: Performing the intelligent tester's or Techstream's Active Test allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the Active Test early in troubleshooting is one way to save time. The Data List can be displayed during the Active Test.

(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the intelligent tester or Techstream to the DLC3.
(d) Turn the ignition switch ON and push the tester switch ON.
(e) Enter the following menus:
(1) Intelligent tester - Select: DIAGNOSIS / OBD/MOBD / ECT / ACTIVE TEST /
(2) Techstream - Select: Powertrain / Engine and ECT / Active Test /
(f) Follow the instructions on the tester and perform the Active Test.

HINT: While driving, the shift position can be forcibly changed with the intelligent tester or Techstream. Comparing the shift position commanded by the Active Test with the actual shift position enables you to confirm the problem.

(1) Intelligent tester

ECT:

(2) Techstream

ECT:

HINT:
^ This test can be conducted when the vehicle speed is 50 km/h (30 mph) or less.
^ The 4th to 5th up-shift must be performed with the accelerator pedal released.
^ The 5th to 4th down-shift must be performed with the accelerator pedal released.
^ Do not operate the accelerator pedal for at least 2 seconds after shifting and do not shift successively.
^ The shift position commanded by the ECM is shown in the Data List display on the tester.
^ The shift solenoid valve SL2 turns ON/OFF normally when the shift lever is in the D position.

Step 1:

Step 1-2:

Step 2:

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Step 4: