Toyota RAV4 manuals

Toyota RAV4 Service Manual: Stop light switch circuit

Toyota RAV4. Stop light switch circuit


Description

While driving with the cruise control, if the ecm detects that the brake pedal is depressed, the cruise control operation will be canceled. The stop light switch sends brake pedal status signals to the ecm.

When the brake pedal is not depressed, terminal st1- is equal to the positive (+) battery voltage and terminal stp is below 1 v. When the brake pedal is depressed, the ecm cancels cruise control operation.

The ecm outputs this dtc when the voltage of terminals st1- and stp are both below 1 v for 0.5 Seconds or more at the same time. The fail-safe function operates to enable normal driving even if there is a malfunction in the stop light signal circuit.

Toyota RAV4. Stop light switch circuit


Hint:

*: W/ vehicle stability control system

Wiring diagram

Toyota RAV4. Stop light switch circuit


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: display changes according to brake pedal operation described in above table.



  1. Inspect fuse (stop, ign, ig2)

  1. Remove the stop and ign fuses from the instrument panel junction block.
  2. Remove the ig2 fuse from the engine room no. 1 Relay block.
  3. Measure the resistance of the fuses.

Standard resistance: below 1




  1. Inspect ig2 relay

Toyota RAV4. Inspect ig2 relay


  1. Remove the ig2 relay from the instrument panel junction block.
  2. Measure the resistance of the relay.

Standard resistance




  1. Inspect stop light switch

Toyota RAV4. Inspect stop light switch


  1. Remove the stop light switch.
  2. Measure the resistance of the switch.

Standard resistance




  1. Check wire harness (switch - battery)

Toyota RAV4. Check wire harness (switch - battery)


  1. Disconnect the a3 switch connector.
  2. Measure the voltage of the wire harness side connector.

Standard voltage




  1. Check wire harness (ecm - battery)

Toyota RAV4. Check wire harness (ecm - battery)


  1. Disconnect the a9 ecm connector.
  2. Turn the ignition switch on.
  3. Measure the voltage of the wire harness side connector.

Standard voltage




Replace ecm

Vehicle speed sensor
Description Refer to the sfi system (see page es-224). Wiring diagram Refer to the sfi system (see page es-224). Inspection procedure Refer to the sfi system (see page es-224). ...

Input signal circuit abnormal
Description This dtc expresses the internal abnormalities of the ecm. Inspection procedure Check for dtc Clear the dtc (see page cc-15). Check for dtc (see page cc-15). Ok: dtc i ...

Other materials:

Turn signal lever
Operating instructions Right turn Lane change to the right (move the lever partway and release it) the right hand signals will flash 3 times. Lane change to the left (move the lever partway and release it) the left hand signals will flash 3 times. Left turn Turn signals ...

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. ...

Dtc check / clear
Check dtc Connect the intelligent tester (with can vim) to the dlc3. Turn the ignition switch on and turn the intelligent tester on. Read the dtc by following the prompts on the tester screen. Hint: Refer to the intelligent tester operator's manual for further details. ...

В© 2011-2022 Copyright www.trav4.net