BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C05003A,C05063A; Left Front Wheel Speed Sensor Signal Has Too Many Pulses; 2022 - 2025 MY RAV4 RAV4 HV [12/2021

Last Modified: 05-08-2025	6.11:8.1.0	Doc ID: RM10000000214OY
Model Year Start: 2022	Model: RAV4	Prod Date Range: [12/2021 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C05003A,C05063A; Left Front Wheel Speed Sensor Signal Has Too Many Pulses; 2022 - 2025 MY RAV4 RAV4 HV [12/2021 - ]

DTC

C05003A

Left Front Wheel Speed Sensor Signal Has Too Many Pulses

DTC

C05063A

Right Front Wheel Speed Sensor Signal Has Too Many Pulses

DESCRIPTION

Refer to DTC C050012.

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DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C05003A	Left Front Wheel Speed Sensor Signal Has Too Many Pulses	When not in Dealer Mode (Signal Check) or Inspection Mode, the output of the speed sensor detected by the No. 2 skid control ECU (brake actuator assembly) is too high for 5 seconds or more.	No. 2 skid control ECU (brake actuator assembly)	Comes on	SAE Code: C0501 (Case 4) Output ECU: No. 2 skid control ECU (brake actuator assembly)
C05063A	Right Front Wheel Speed Sensor Signal Has Too Many Pulses	When not in Dealer Mode (Signal Check) or Inspection Mode, the output of the speed sensor detected by the No. 2 skid control ECU (brake actuator assembly) is too high for 5 seconds or more.	No. 2 skid control ECU (brake actuator assembly)	Comes on	SAE Code: C0507 (Case 4) Output ECU: No. 2 skid control ECU (brake actuator assembly)

MONITOR DESCRIPTION

The No. 2 skid control ECU (brake actuator assembly) monitors the output of the speed sensor. When the output value of the speed sensor is excessively high, the MIL is illuminated and a DTC is stored.

MONITOR STRATEGY

Related DTCs	C0501 (Case 4): Wheel speed sensor (FL) range/performance C0507 (Case 4): Wheel speed sensor (FR) range/performance
Required Sensors/Components(Main)	Speed sensor Speed sensor rotor
Required Sensors/Components(Related)	No. 2 skid control ECU (brake actuator assembly)
Frequency of Operation	Continuous
Duration	5 seconds
MIL Operation	Immediately
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

C0501 (Case 4)

Monitor runs whenever the following DTCs are not stored	C0501 (Case 1 to 3): Wheel speed sensor (FL) range/performance C0502: Wheel speed sensor (FL) voltage circuit open C0503: Wheel speed sensor (FL) voltage circuit high C0504: Wheel speed sensor (FL) intermittent/erratic C1241: Brake system voltage input out of range low C137D: Brake system voltage input out of range high C14E1: Wheel speed sensor (FL) voltage circuit low
All of the following conditions are met	-
Chassis dynamometer mode	Off
+BS voltage	17.4 V or less
IG1	On

C0507 (Case 4)

Monitor runs whenever the following DTCs are not stored	C0507 (Case 1 to 3): Wheel speed sensor (FR) range/performance C0508: Wheel speed sensor (FR) voltage circuit open C0509: Wheel speed sensor (FR) voltage circuit high C050A: Wheel speed sensor (FR) intermittent/erratic C1241: Brake system voltage input out of range low C137D: Brake system voltage input out of range high C14E4: Wheel speed sensor (FR) voltage circuit low
All of the following conditions are met	-
Chassis dynamometer mode	Off
+BS voltage	17.4 V or less
IG1	On

TYPICAL MALFUNCTION THRESHOLDS

C0501 (Case 4) and C0507 (Case 4)

Highest speed sensor output value

300 km/h (186.34 mph) or more

COMPONENT OPERATING RANGE

C0501 (Case 4) and C0507 (Case 4)

All of the following conditions are met	-
Chassis dynamometer mode	Off
Lowest speed sensor output value	Higher than 30 km/h (18.64 mph)
Difference highest speed sensor value and lowest speed sensor value	Less than 2 km/h (1.24 mph)

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.
Drive the vehicle straight at a speed of 20 km/h (12 mph) or more for 10 seconds 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.

CAUTION / NOTICE / HINT

NOTICE:

After replacing the No. 2 skid control ECU (brake actuator assembly), perform "Calibration" after performing "Reset Memory".

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PROCEDURE

1.	REPLACE BRAKE ACTUATOR ASSEMBLY

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END