Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001D0YI |
Model Year Start: 2019 |
Model: Corolla Hatchback |
Prod Date Range: [06/2018 -
] |
Title: K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P282812; Pressure Control Solenoid "K" Circuit Short to Battery; 2019 - 2025 MY Corolla Corolla Hatchback [06/2018 - ] |
DTC
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P282812
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Pressure Control Solenoid "K" Circuit Short to Battery
|
DESCRIPTION
Using the current from the TCM, the shift solenoid valve SLS controls the secondary pulley pressure and belt clamping pressure in accordance with the input shaft torque.
DTC No.
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Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Memory
|
Note
|
P282812
|
Pressure Control Solenoid "K" Circuit Short to Battery
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A short to +B is detected in the shift solenoid valve SLS circuit for 1 second or more (1-trip detection logic).
|
-
Transmission valve body assembly (Shift solenoid valve SLS)
-
Transmission wire
-
Harness and connector
-
TCM
|
Comes on
|
DTC stored
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SAE Code:
P2830
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MONITOR DESCRIPTION
This DTC indicates a short to +B in the shift solenoid valve SLS circuit. If there is a short to +B in the shift solenoid valve SLS circuit, the TCM detects the malfunction, illuminates the MIL and stores this DTC.
MONITOR STRATEGY
Related DTCs
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P2830: Pressure control solenoid "K" (Shift solenoid valve SLS)/Range check (High current)
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Required sensors/Components
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Shift solenoid valve SLS
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Frequency of operation
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Continuous
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Duration
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1 sec.
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MIL operation
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Immediate
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Sequence of operation
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None
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TYPICAL ENABLING CONDITIONS
All
The monitor will run whenever the following DTCs are not stored
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None
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Solenoid current cut status
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Not cut
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Engine switch
|
On (IG)
|
Starter
|
OFF
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Condition (A)
Battery voltage
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8 V or more and 11.499 V or less
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Target current (0.1 sec. or more)
|
0.9 A or less
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Condition (B)
Battery voltage
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11.5 V or more and 16 V or less
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Target current (0 sec. or more)
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1 A or less
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TYPICAL MALFUNCTION THRESHOLDS
Any of the following conditions are met: Condition (A) or (B)
Condition (A)
Battery voltage
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8 V or more and 11.499 V or less
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Solenoid current
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More than 1.145 A
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Condition (B)
Battery voltage
|
11.5 V or more and 16 V or less
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Solenoid current
|
More than 1.22 A
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COMPONENT OPERATING RANGE
Both of the following conditions are met: Condition (A) and (B)
Condition (A)
Battery voltage
|
8 V or more and 11.499 V or less
|
Solenoid current
|
1.145 A or less
|
Condition (B)
Battery voltage
|
11.5 V or more and 16 V or less
|
Solenoid current
|
1.22 A or less
|
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
-
Connect the Techstream to the DLC3.
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Turn the engine switch on (IG) and turn the Techstream on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the engine switch off and wait for 2 minutes or more.
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Turn the engine switch on (IG) and turn the Techstream on.
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Start the engine.
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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.
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Stop the vehicle.
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Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
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Input the DTC: P282812.
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Check the DTC judgment result.
Techstream Display
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Description
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NORMAL
|
-
DTC judgment completed
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System normal
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ABNORMAL
|
-
DTC judgment completed
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System abnormal
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INCOMPLETE
|
-
DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
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N/A
|
-
Unable to perform DTC judgment
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Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
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HINT:
-
If the judgment result shows NORMAL, the system is normal.
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If the judgment result shows ABNORMAL, the system has a malfunction.
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If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
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INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLS)
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(a) Disconnect the C61 transmission wire connector.
|
|
*a
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Component without harness connected
(Transmission Wire)
|
|
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(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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15 (SLS+) - Other terminals
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Always
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10 kΩ or higher
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20 (SLS-) - Other terminals
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Always
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10 kΩ or higher
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(c) Connect the C61 transmission wire connector.
OK
|
|
|
2.
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CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)
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(a) Disconnect the C80 TCM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
C80-4 (SLS+) - Other terminals
|
Always
|
10 kΩ or higher
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C80-3 (SLS-) - Other terminals
|
Always
|
10 kΩ or higher
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(c) Connect the C80 TCM connector.
NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - TCM)
|
OK
|
|
|
(a) Replace the TCM.
Click here
4.
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INSPECT TRANSMISSION WIRE
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(a) Disconnect the C61 transmission wire connector.
*1
|
Transmission Valve Body Assembly
|
*2
|
Shift Solenoid Valve SLS
|
*3
|
Transmission Wire
|
-
|
-
|
*a
|
Shift Solenoid Valve Side
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*b
|
Wire Harness Connector Side
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(b) Disconnect the transmission wire connector from the shift solenoid valve SLS.
Click here
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
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Specified Condition
|
1 (shift solenoid valve side) or 15 (SLS+) (wire harness connector side) - All other terminals
|
Always
|
10 kΩ or higher
|
2 (shift solenoid valve side) or 20 (SLS-) (wire harness connector side) - All other terminals
|
Always
|
10 kΩ or higher
|
OK
|
|
|
5.
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REPLACE TRANSMISSION VALVE BODY ASSEMBLY
|
(a) Replace the transmission valve body assembly.
Click here
|