BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C145100; High Pressure Tube Air Bleeding; 2022 - 2024 MY RAV4 RAV4 HV [12/2021

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM10000000214QW
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): C145100; High Pressure Tube Air Bleeding; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ]

DTC

C145100

High Pressure Tube Air Bleeding

DESCRIPTION

If air bleeding has not been performed, the No. 2 skid control ECU (brake actuator assembly) stores DTC C145100 to prevent the entry of air due to pump motor operation.

DTC C145100 is stored when Motor Deactivate is selected, the system will not return to normal until the air bleeding procedure is performed.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C145100	High Pressure Tube Air Bleeding	When the vehicle speed is 40 km/h (25 mph) or more, one of the following conditions is met: Using the GTS, "Motor Deactivate" of the "ECB Utility" has been performed. The brake booster with master cylinder assembly has been replaced.	Air bleeding not performed	Comes on	SAE Code: C1451 Output ECU: No. 2 skid control ECU (brake actuator assembly) HINT: DTC C145100 is cleared when the conditions return to normal. ECB: Electronically Controlled Brake System

C145100 DTC Detection Conditions

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	When the vehicle speed is 40 km/h (25 mph) or more	○	○
Malfunction Status	Using the GTS, "Motor Deactivate" of the "ECB Utility" has been performed	○	-
Malfunction Status	The brake booster with master cylinder assembly has been replaced	-	○
Detection Time		-	-
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

After replacing the brake booster with master cylinder assembly or brake booster with accumulator pump assembly, if air bleeding is not performed and the vehicle is driven at a certain speed or more, the No. 2 skid control ECU (brake actuator assembly) judges that air bleeding has not been completed and illuminates the MIL and stores this DTC.

Furthermore, this DTC is not cleared until air bleeding has been completed.

MONITOR STRATEGY

Related DTCs	C1451: High pressure hydraulic tube air bleeding not complete
Required Sensors/Components(Main)	No. 2 skid control ECU (brake actuator assembly)
Required Sensors/Components(Related)	Speed sensor
Frequency of Operation	Continuous
Duration	-
MIL Operation	Immediately
Sequence of Operation	None

TYPICAL ENABLING CONDITIONS

*: Electronically Controlled Brake System
Monitor runs whenever the following DTCs are not stored	U0129: Lost communication with ECB*_ECU (C-bus)
Vehicle speed	40 km/h (24.85 mph) or more

TYPICAL MALFUNCTION THRESHOLDS

High pressure hydraulic tube air bleeding

Not complete

COMPONENT OPERATING RANGE

High pressure hydraulic tube air bleeding

Complete

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 at a speed of 40 km/h (25 mph) or more for 1 second. [*]
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.

PROCEDURE

1.	PERFORM AIR BLEEDING

(a) Bleed the air from the brake system.

Click here

HINT:

If air bleeding has been performed, this DTC will be cleared (not including the SAE code).

2.	RECONFIRM DTC

(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.

(b) Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes

Result	Proceed to
DTC C145100 is not output.	A
DTC C145100 is output.	B

END

PERFORM AIR BLEEDING AGAIN