P0776

DTC P0776 / P0777

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

P0776

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- If other DTC than P0776 is newly detected during this "DTC Confirmation Procedure", troubleshoot the newly detected DTC in first.
- Confirm that the following conditions are met in this procedure.

- Battery voltage > 10.5 V

1) Drive vehicle at more than 50 km/h (31 mile/h) for 40 sec.
2) Stop vehicle.
3) Push engine switch to change ignition mode to "OFF", and leave ignition mode in "OFF" for 10 sec.
4) Push engine switch to change ignition mode to "ON".
5) Repeat Step 1) through 2) twice.

P0777

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- If other DTC than P0777 is newly detected during this "DTC Confirmation Procedure", troubleshoot the newly detected DTC in first.
- Confirm that the following conditions are met in this procedure.

- CVT fluid temperature at engine start ≥ -20 °C (-4 °F)

6) Drive vehicle at 30 - 50 km/h (19 mile/h - 31 mile/h) constantly for 40 sec. or more at "D" range. (Keep throttle valve opening constantly in this step).
7) Stop vehicle.
8) Push engine switch to change ignition mode to "OFF", and leave ignition mode in "OFF" for 10 sec.
9) Push engine switch to change ignition mode to "ON".
10) Repeat Step 1) through 2) twice.

DTC Troubleshooting


1. Was "CVT System Check" performed?
YES
Go to Step 2.
NO
Go to CVT System Check CVT System Check.
2. Secondary pressure sensor and its circuit check
Check secondary pressure sensor and its circuit according to Step 2 through 3 of P0847 DTC P0847 / P0848.
Are they in good condition?
YES
Go to Step 3.
NO
Repair or replace defective parts.
3. Stall test
Perform stall test. Stall Test
Is it in good condition?
YES
Go to Step 4.
NO
Repair or replace defective parts.
4. Secondary pressure control solenoid valve and its circuit check
Check secondary pressure control solenoid valve and its circuit according to Step 2 through 3 of P0966 DTC P0966 / P0967.
Are they in good condition?
YES
Go to Step 5.
NO
Repair or replace defective parts.
5. Line pressure control solenoid valve and its circuit check
Check line pressure control solenoid valve and its circuit according to Step 2 through 3 of P0962 DTC P0962 / P0963.
Are they in good condition?
YES
Substitute a known-good TCM and recheck DTC. Service and Repair
NO
Replace CVT assembly. CVT Assembly Dismounting and Remounting