BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C11031C; Brake Pedal Position Sensor "B" Supply Voltage Circuit Voltage Out of Range; 2022 - 2023 MY RAV4 RAV4 HV [12/2021

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM10000000214PY
Model Year Start: 2022	Model: RAV4	Prod Date Range: [12/2021 - 10/2023]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C11031C; Brake Pedal Position Sensor "B" Supply Voltage Circuit Voltage Out of Range; 2022 - 2023 MY RAV4 RAV4 HV [12/2021 - 10/2023]

DTC

C11031C

Brake Pedal Position Sensor "B" Supply Voltage Circuit Voltage Out of Range

DESCRIPTION

Refer to DTC C110000.

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DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C11031C	Brake Pedal Position Sensor "B" Supply Voltage Circuit Voltage Out of Range	The sensor supply voltage (VSK2) is 4.7 V or less, or 5.3 V or more for 0.2 seconds or more.	Wire harness and connector Brake pedal stroke sensor assembly No. 2 skid control ECU (brake actuator assembly)	Comes on	SAE Code: C1103 (Case 1) Output ECU: No. 2 skid control ECU (brake actuator assembly)

C11031C DTC Detection Conditions

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	-	-	-
Malfunction Status	The sensor supply voltage (VSK2) is 4.7 V or less	○	-
Malfunction Status	The sensor supply voltage (VCSK2) is 5.3 V or more	-	○
Detection Time		0.2 seconds or more.	0.2 seconds or more.
Number of Trips		1 trip	1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

MONITOR DESCRIPTION

The No. 2 skid control ECU (brake actuator assembly) monitors the power supply voltage of the brake pedal stroke sensor assembly. When the brake pedal stroke sensor assembly power supply voltage is outside of the normal range, the No. 2 skid control ECU (brake actuator assembly) judges that the power supply is abnormal and illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Related DTCs	C1103 (Case 1): Brake pedal position sensor voltage circuit/open
Required Sensors/Components(Main)	No. 2 skid control ECU (brake actuator assembly)
Required Sensors/Components(Related)	No. 2 skid control ECU (brake actuator assembly)
Frequency of Operation	Continuous
Duration	0.198 seconds
MIL Operation	Immediately
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored	C137C: Brake system voltage input out of range low
+BS voltage	Higher than 8.5 V

TYPICAL MALFUNCTION THRESHOLDS

Brake pedal position sensor power supply

Less than 4.8 V, or higher than 5.2 V

COMPONENT OPERATING RANGE

Both of the following conditions are met	-
+BS voltage	Higher than 8.5 V
Brake pedal position sensor power supply	4.8 V or more, and 5.2 V or less

CONFIRMATION DRIVING PATTERN

NOTICE:

When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.

HINT:

After repair has been completed, clear the DTC 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.

Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off.
Turn the ignition switch to ON (READY) and turn the GTS on.
Wait for 1 second or more. [*]
HINT:

[*]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Chassis / Brake/EPB / Utility / All Readiness.
Check the DTC judgment result.
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, perform driving pattern again.

WIRING DIAGRAM

Refer to DTC C110000.

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CAUTION / NOTICE / HINT

NOTICE:

After replacing or reinstalling the brake pedal stroke sensor assembly, perform "Calibration" after performing "Reset Memory".
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After replacing the No. 2 skid control ECU (brake actuator assembly), perform "Calibration" after performing "Reset Memory".
Click here

PROCEDURE

1.	CHECK BRAKE PEDAL

(a) Check that the brake pedal and the brake pedal stroke sensor assembly are properly installed and that the pedal can be depressed normally.

(b) Check and adjust the brake pedal height.

Click here

2.	CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - BRAKE PEDAL STROKE SENSOR ASSEMBLY)

(a) Turn the ignition switch off.

(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.

OK:

The connector is securely connected.

(d) Disconnect the A103 brake pedal stroke sensor assembly connector.

(e) Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.

(f) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A105-26 (SKG2) - A103-3 (SKG2)	Always	Below 1 Ω
A105-26 (SKG2) or A103-3 (SKG2) - Body ground	Always	10 kΩ or higher
A105-25 (VSK2) - A103-2 (VSK2)	Always	Below 1 Ω
A105-25 (VSK2) or A103-2 (VSK2) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	INSPECT BRAKE ACTUATOR ASSEMBLY (SENSOR OUTPUT)

(a) Reconnect the A105 No. 2 skid control ECU (brake actuator assembly) connector.

*a	Front view of wire harness connector (to Brake Pedal Stroke Sensor Assembly)

(b) Turn the ignition switch to ON.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A103-2 (VSK2) - A103-3 (SKG2)	Ignition switch ON	4.84 to 5.16 V

REPLACE BRAKE PEDAL STROKE SENSOR ASSEMBLY

REPLACE BRAKE ACTUATOR ASSEMBLY