Toyota RAV4 manuals

Toyota RAV4 Service Manual: Master cylinder pressure sensor malfunction

Toyota RAV4 Service Manual / Brake control / Vehicle stability control system / Master cylinder pressure sensor malfunction

Toyota RAV4. Master cylinder pressure sensor malfunction


Description

The master cylinder pressure sensor is connected to the skid control ecu in the abs and traction actuator.

Dtc c1281/81 can be detected when the master cylinder pressure sensor sends a master cylinder pressure signal or test mode ends. Dtc c1281/81 is output only in test mode.

Toyota RAV4. Master cylinder pressure sensor malfunction


Inspection procedure

Notice:

When replacing the abs and traction actuator, perform zero point calibration (see page bc-24).

  1. Read value of intelligent tester (stop light switch)

  1. Check the data list for proper functioning of the stop light switch.

Toyota RAV4. Read value of intelligent tester (stop light switch)


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



  1. Read value of intelligent tester (master cylinder pressure sensor)

  1. Check the data list for proper functioning of the master cylinder pressure sensor.

Toyota RAV4. Read value of intelligent tester (master cylinder pressure sensor)


Ok: when the pedal is depressed, the sensor output voltage increases.



  1. Reconfirm dtc

  1. Clear the dtc(s) (see page bc-47).
  2. Drive the vehicle at a speed of 30 km/h (18 mph) or more and perform a braking test (decelerate the vehicle by depressing the brake pedal).
  3. Check if the same dtc(s) is recorded (see page bc-47).

Result




Replace abs and traction actuator assembly

Low battery positive voltage
Description When there is an abnormality in the power supply circuit of the brake actuator (skid control ecu), the skid control ecu sets a dtc and the operation is prohibited by the fail-safe ...

Open in stop light switch circuit
Description The skid control ecu detects the brake operating conditions through a signal transmitted by the stop light switch. The skid control ecu incorporates an open circuit detection circuit. ...

Other materials:

Unmatched key code
Description This dtc is output when a key code that has not been registered in the transponder key ecu is inserted into the ignition key cylinder. Inspection procedure Reregister key Clear the dtc (see page ei-18). Reregister the key code with the transponder key ecu (see ...

Inspection
Inspect camshaft position sensor Measure the resistance of the sensor. Standard resistance Notice: Cold and hot mean the temperature of the coils themselves. Cold is from -10 to 50°c (14 to 122 °f) and hot is from 50 to 100°c (122 to 212°f). If the result is not as specif ...

Problem symptoms table (2005/11-2006/01)
Hint: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace p ...

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