Toyota RAV4 manuals

Toyota RAV4 Service Manual: 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. This dtc is set under either of the following conditions:

Toyota RAV4. Open in stop light switch circuit


Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

  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. Check wire harness (stp voltage)

Toyota RAV4. Check wire harness (stp voltage)


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

Standard voltage




Replace abs and traction actuator assembly

  1. Inspect fuse (stop, ecu-ig1)

  1. Remove the stop fuse and ecu-ig1 fuse from the instrument panel junction block.
  2. Measure the resistance of the fuse.

Standard resistance: below 1




  1. Inspect stop light control relay (marking: brk)

Toyota RAV4. Inspect stop light control relay (marking: brk)


  1. Remove the stop light control relay from the engine room no. 1 Relay block.
  2. Measure the resistance of the relay.



  1. Inspect stop light switch assembly

Toyota RAV4. Inspect stop light switch assembly


  1. Disconnect the stop light switch connector.
  2. Measure the resistance of the switch.

Standard resistance




  1. Check wire harness (skid control ecu - stop light switch)

  1. Disconnect the a19 ecu connector.
  2. Disconnect the a3 switch connector.
  3. Measure the resistance of the wire harness side connectors.

Toyota RAV4. Check wire harness (skid control ecu - stop light switch)


  1. Disconnect the a19 ecu connector.
  2. Disconnect the a3 switch connector.
  3. Measure the resistance of the wire harness side connectors.

Standard resistance




  1. Reconfirm dtc

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

Result




Replace abs and traction actuator assembly

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 ...

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 ...

Other materials:

Glossary of sae and toyota terms
This glossary lists all sae-j1930 terms and abbreviations used in this manual in compliance with sae recommendations, as well as their toyota equivalents. ...

Short in motor circuit
Description The power steering ecu supplies current to the power steering motor through this circuit. Inspection procedure Reconfirm dtc Check for dtc. Ok: dtc is not output. Replace power steering ecu ...

Communication
Description The skid control ecu sends signals such as cruise control cancel demand signals and brake operation demand from ecm response signals to the ecm when the cruise control system is in operation. Inspection procedure Hint: This circuit uses can communication. Therefore, if t ...

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