Toyota RAV4 manuals

Toyota RAV4 Service Manual: Brake pedal load sensing switch

Description

The brake pedal load sensing switch is turned on when the brake pedal is depressed with force exceeding a predetermined level.

The skid control ecu detects if the brake pedal is depressed or not via this circuit.

Toyota RAV4. Brake pedal load sensing switch


Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

Notice:

When replacing the brake actuator assembly, perform zero point calibration (see page bc-24).

Hint:

If dtc c1249/49 is output, repair it before repairing dtc c1267/67 based on the flowchart below.

  1. Read value of intelligent tester (brake pedal load sensing switch)

  1. Check the data list for proper functioning of the brake pedal load sensing switch.

Toyota RAV4. Read value of intelligent tester (brake pedal load sensing switch)


Ok: on (brake pedal is depressed) appears on the screen.



  1. Inspect brake pedal load sensing switch

Toyota RAV4. Inspect brake pedal load sensing switch


Notice:

  1. Turn the ignition switch off.
  2. Disconnect the brake pedal load sensing switch connector.
  3. Measure the resistance of the switch.

Standard resistance




  1. Check wire harness (skid control ecu - brake pedal load sensing switch)

  1. Disconnect the a19 ecu connector.
  2. Measure the resistance of the wire harness side connectors.

Toyota RAV4. Check wire harness (skid control ecu - brake pedal load sensing switch)


Standard resistance




  1. Reconfirm dtc

  1. Clear the dtc (see page bc-47).
  2. Check if the same dtc is recorded (see page bc-47).

Result




Use simulation method to check

Open in pump motor circuit
Description The motor relay drives the pump motor based on a signal from the skid control ecu. Wiring diagram Refer to dtc c0273/13, c0274/14, c1361/91 (see page bc-79). Inspection proce ...

Steering angle sensor zero point malfunction
Description The skid control ecu learns the steering sensor zero point every time the ignition switch is turned on and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 sec ...

Other materials:

Diagnosis system
Description Sliding roof system data and diagnostic trouble codes (dtcs) can be read through the vehicle's data link connector 3 (dlc3). When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs. Check dlc3 The vehi ...

Disassembly
Remove radio setting condenser Remove the bolt and condenser. Remove oil pressure switch Using a 24 mm deep socket wrench, remove the sensor. Remove engine coolant temperature sensor Using sst, remove the sensor and gasket. Sst 09817-33190 Remove c ...

Data list / active test
Hint: Using the intelligent tester's data list allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the data list early in troubleshooting is one way to save time. Data list for occupant classification ecu Connect the intelligent test ...

В© 2011-2019 Copyright www.trav4.net