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:

Air fuel ratio sensor
Components On-vehicle inspection Check air fuel ratio compensation system Connect the intelligent tester to the dlc3. Turn the ignition switch on. Select the following menu items: data list / a/fs b1 s1 and o2s b1 s2. Warm up the a/f sensor with the engine speed at 2,500 ...

Rear wheel alignment
adjustment Inspect tire Inspect the tire (see page tw-1). Measure vehicle height Measure the vehicle height (see page sp-3). Inspect toe-in Standard toe-in If the toe-in is not within the specified range, inspect the suspension parts and replace them if necessar ...

Rear airbag sensor
Components On-vehicle inspection Check rear airbag sensor (vehicle not involved in collision) Perform a diagnostic system check (see page rs- 49). Check rear airbag sensor (vehicle involved in collision and airbag has not deployed) Perform a diagnostic system check ...

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