- DTC judgment completed
- System normal
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001GYSW |
| Model Year Start: 2020 | Model: Corolla Hatchback | Prod Date Range: [01/2019 - 11/2022] |
| Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P2820; Pressure Control Solenoid "J" Performance or Stuck Off; 2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022] | ||
|
DTC |
P2820 |
Pressure Control Solenoid "J" Performance or Stuck Off |
DESCRIPTION
According to current from the ECM, the shift solenoid valve SLP controls primary pulley pressure in accordance with the requested gear ratio to perform gear ratio changes.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
|---|---|---|---|---|---|
|
P2820 |
Pressure Control Solenoid "J" Performance or Stuck Off |
Any of the following conditions are met (1-trip detection logic):
|
Continuously variable transaxle assembly (Shift solenoid valve SLP) |
Comes on |
DTC stored |
DTC Detection Condition Patterns:
|
Vehicle Condition |
|||
|---|---|---|---|
|
Pattern 1 |
Pattern 2 |
||
|
Diagnostic Condition |
The oil pressure sensor output value is 0.4 MPa (4.1 kgf/cm2, 58 psi) or more and the target gear ratio is less than 1.0. |
○ |
- |
|
The oil pressure sensor output value is 0.4 MPa (4.1 kgf/cm2, 58 psi) or more and the target gear ratio is 2.0 or more. |
- |
○ |
|
|
Malfunction Condition |
The actual gear ratio is 2.0 or more. |
○ |
- |
|
The actual gear ratio is less than 0.5. |
- |
○ |
|
|
Duration |
2 seconds or more |
1.5 seconds or more |
|
|
Detection Logic |
1-trip detection logic |
1-trip detection logic |
|
HINT:
This DTC is stored when either of the above detection patterns is met.
MONITOR DESCRIPTION
The ECM compares the actual gear ratio with the target gear ratio. When the actual gear ratio and target gear ratio are different, the ECM detects the malfunction, illuminates the MIL and stores this DTC.
MONITOR STRATEGY
|
Related DTCs |
P2820: Pressure control solenoid (Shift solenoid valve SLP)/ Functional check |
|
Required sensors/Components |
Continuously variable transaxle assembly (Shift solenoid valve SLP) |
|
Frequency of operation |
Continuous |
|
Duration |
OFF malfunction: 1.5 seconds ON malfunction: 2 seconds |
|
MIL operation |
1 driving cycle |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
All
|
Electric throttle control system (ETCS) |
Not system down (MIL illuminated by following codes: P0121, P0122, P0123, P0222, P0223, P0604, P0606, P0607, P060D, P060E, P0657, P0658, P1607, P16B0, P2102, P2103, P2111, P2112, P2119, P2135) |
|
Knock sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0327, P0328) |
|
Engine coolant temperature (ECT) sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0117, P0118) |
|
Intake air temperature (IAT) sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0112, P0113) |
|
Shift solenoid "G" circuit (Shift solenoid valve SC) |
Not circuit malfunction (MIL illuminated by following codes: P099B, P099C) |
|
Torque converter clutch solenoid circuit (Shift solenoid valve SL circuit) |
Not circuit malfunction (MIL illuminated by following codes: P2769, P2770) |
|
Pressure control solenoid "K" circuit (Shift solenoid valve SLS circuit) |
Not circuit malfunction (MIL illuminated by following codes: P282F, P2830) |
|
Pressure control solenoid "J" circuit (Shift solenoid valve SLP circuit) |
Not circuit malfunction (MIL illuminated by following codes: P2826, P2827) |
|
Transmission fluid temperature sensor "A" circuit (CVT fluid temperature sensor circuit) |
Not circuit malfunction (MIL illuminated by following codes: P0712, P0713) |
|
Turbine speed sensor "A" circuit |
Not circuit malfunction (MIL illuminated by following codes: P0717, P07BF, P07C0) |
|
Input speed sensor "B" circuit |
Not circuit malfunction (MIL illuminated by following codes: P2767) |
|
Output speed sensor circuit |
Not circuit malfunction (MIL illuminated by following codes: P0722, P077C, P077D) |
|
Transmission fluid pressure sensor "A" circuit |
Not circuit malfunction (MIL illuminated by following codes: P0842, P0843) |
|
Shift position |
("D" or "R" or "B") |
|
Tire |
Not slipping |
|
Turbine speed - Input speed |
Less than 50 rpm |
|
ECT (Engine coolant temperature) |
60°C (140°F) or more |
|
Spark advance from MAX. retard timing by KCS control |
0 °CA or more |
|
Ignition switch |
ON |
|
Engine speed |
500 rpm or more |
|
Input speed |
100 rpm or more |
|
Output speed |
150 rpm or more |
|
Transmission fluid temperature |
-10°C (14°F) or more and less than 140°C (284°F) |
|
Duration time after shifting from ("N" or "P") to ("D" or "R" or "B") |
4 seconds or more |
|
Time after all of the following conditions are met: (a) and (b) |
4.032 seconds or more |
|
(a) ECM does NOT command |
SC "ON" |
|
(b) ECM does NOT command |
SL "OFF" |
|
Shift solenoid valve SLP |
Operating shift control by ECM command |
|
Low voltage flag |
OFF |
OFF malfunction:
|
Actual clamping pressure |
0.4 MPa (4.1 kgf/cm2, 58 psi) or more |
|
Time after some of the following conditions are met: (a) or (b) |
0.5 seconds or more |
|
(a) ECM commands |
SC "OFF" and SL "ON" |
|
(b) ECM commands |
SC "ON" and SL "ON" |
ON malfunction 1st judgment:
|
Time after any of the following conditions are met: (a), (b) or (c) |
0.5 seconds or more |
|
(a) ECM commands |
SC "OFF" and SL "OFF" |
|
(b) ECM commands |
SC "OFF" and SL "ON" |
|
(c) ECM commands |
SC "ON" and SL "ON" |
ON malfunction 2nd judgment:
|
Actual clamping pressure |
0.4 MPa (4.1 kgf/cm2, 58 psi) or more |
|
Time after any of the following conditions are met: (a) or (b) |
0.5 seconds or more |
|
(a) ECM commands |
SC "OFF" and SL "ON" |
|
(b) ECM commands |
SC "ON" and SL "ON" |
|
Following condition met once after 1st judgment |
- |
|
- Vehicle speed |
Less than 10 km/h (6.2 mph) |
TYPICAL MALFUNCTION THRESHOLDS
OFF malfunction:
|
Target gear ratio |
2 or more |
|
Actual gear ratio |
Less than 0.5 |
ON malfunction*:
|
Target gear ratio |
Less than 1 |
|
Actual gear ratio |
2 or more |
HINT:
*: It is necessary 2 judgments / drive cycle
2nd judgment: pending fault code ON
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
- After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
-
When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.
Click here
![2020 - 2023 MY Corolla Corolla Hatchback [01/2019 - 11/2022]; K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and turn the Techstream on.
- Start the engine.
-
Perform the D Position Shift Test inspection in Road Test. [*1]
Click here
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Stop the vehicle.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
- Input the DTC: P2820.
-
Check the DTC judgment result.
Techstream Display
Description
NORMAL
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
N/A
- Unable to perform DTC judgment
- Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.
CAUTION / NOTICE / HINT
NOTICE:
-
Perform the universal trip to clear permanent DTCs.
Click here
-
Perform initialization when parts related to the continuously variable transaxle system are replaced.
Click here
-
Check that no DTCs are stored after performing initialization.
Click here
PROCEDURE
|
1. |
CHECK DTC OUTPUT (IN ADDITION TO DTC P2820) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Powertrain > Engine and ECT > Trouble Codes
(e) Read the DTCs using the Techstream.
HINT:
If any DTCs other than P2820 are output, perform troubleshooting for those DTCs first.
|
Result |
Proceed to |
|---|---|
|
Only DTC P2820 is output |
A |
|
DTC P2820 and other DTCs are output |
B |
| B |
|
GO TO DTC CHART
|
|
|
2. |
REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY |
(a) Replace the continuously variable transaxle assembly.
Click here
| NEXT |
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