Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM10000000214QE
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): C134500; Linear Solenoid Valve Offset Learning; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]

DTC

C134500

Linear Solenoid Valve Offset Learning

DESCRIPTION

The No. 1 skid control ECU (brake booster with master cylinder assembly) stores the individual characteristics of each linear solenoid built into the brake booster with master cylinder assembly. Based on the stored information, the No. 1 skid control ECU (brake booster with master cylinder assembly) calibrates the individual differences and controls systems.

The No. 2 skid control ECU (brake actuator assembly) receives the shift position P signal from the hybrid vehicle control ECU via CAN communication system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

C134500

Linear Solenoid Valve Offset Learning

When the vehicle speed is 40 km/h (25 mph) or more, the linear solenoid valve offset learning value is not stored.
  • Perform linear solenoid valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal.
  • No. 1 skid control ECU (brake booster with master cylinder assembly)

Comes on
  • SAE Code: C1345
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

HINT:

During Dealer Mode, related DTCs are cleared (except SAE code).

MONITOR DESCRIPTION

After any of the following situations, if the learning value of the linear solenoid (SLA) or linear solenoid (SLR) is not stored and the vehicle is being driven at a certain speed or more, the No. 2 skid control ECU (brake actuator assembly) judges that the offset learning of the linear solenoid valve is not performed and illuminates the MIL and stores this DTC.

  1. The No. 1 skid control ECU (brake booster with master cylinder assembly) has been replaced with a new one.
  2. After the brake pedal stroke sensor assembly, brake pedal, brake booster with master cylinder assembly, brake actuator assembly or yaw rate and acceleration sensor (airbag ECU assembly) has been removed and installed or replaced, the zero point is cleared.

MONITOR STRATEGY

Related DTCs

C1345: Brake pressure control solenoid open current learning 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

Either of the following conditions is met

-

Brake pressure control solenoid "A" open current learning value

Not stored

Brake pressure control solenoid "B" open current learning value

Not stored

COMPONENT OPERATING RANGE

Both of the following conditions are met

-

Brake pressure control solenoid "A" open current learning value

Stored

Brake pressure control solenoid "B" open current learning value

Stored

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.
  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON (READY) and turn the GTS on.
  6. 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.

  7. Enter the following menus: Chassis / Brake/EPB / Utility / All Readiness.
  8. 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. 1 skid control ECU (brake booster with master cylinder assembly), perform "Calibration" after performing "Reset Memory".

Click here 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY

PROCEDURE

1.

CHECK DTC

(a) Check that no DTCs other than those related to incomplete learning are output.

Chassis > Brake Booster > Trouble Codes

Chassis > Brake/EPB > Trouble Codes

OK:

DTCs other than those related to incomplete learning are not output.

NG

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS
OK

2.

PERFORM AIR BLEEDING

(a) Perform the air bleeding procedure in Bleed Brake System.

Click here 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]; BRAKE SYSTEM (OTHER): BRAKE FLUID (w/o Vacuum Brake Booster): BLEEDING

NEXT

3.

PERFORM LINEAR SOLENOID VALVE OFFSET LEARNING

(a) Check and ensure the following conditions required for performing linear solenoid valve offset learning and then perform linear solenoid valve offset learning.

Click here 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY

NOTICE:

If DTC C134554 is output, turn the ignition switch off for 4 minutes or more and then turn the ignition switch to ON again before performing learning.

Chassis > Brake/EPB > Utility

Tester Display

Calibration
  1. The auxiliary battery voltage is 11 to 15.5 V when the ignition switch is turned ON (READY).
  2. The brake booster with master cylinder assembly is not hot.
  3. The hybrid control system is not malfunctioning.
  4. The shift state indicator shows that the shift lever is in P.
  5. The READY light in the combination meter assembly is illuminated.
  6. The brake pedal is not depressed.
  7. The parking brake is released.
  8. DTCs C145100 or C145151 is not output. (If it is output, bleed the air from the high-pressure tube.)
NEXT

4.

CLEAR DTC

(a) Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs

(b) Turn the ignition switch off.

NEXT

5.

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 C134500 is not output.

A

DTC C134500 is output.

B
A

END
B

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; BRAKE SYSTEM (OTHER): BRAKE BOOSTER (w/o Vacuum Brake Booster): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; BRAKE SYSTEM (OTHER): BRAKE BOOSTER (w/o Vacuum Brake Booster): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; BRAKE SYSTEM (OTHER): BRAKE BOOSTER (w/o Vacuum Brake Booster): REMOVAL