Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Low battery positive voltage

Toyota RAV4. 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 function. This dtc is set when the voltage supplied to terminal ig1 is outside the dtc detection threshold, due to abnormalities of the battery, power source circuits or charging circuits such as the alternator circuit.

The fail-safe function is canceled when the voltage to terminal ig1 returns to normal.

Toyota RAV4. Low battery positive voltage


Wiring diagram

Toyota RAV4. Wiring diagram


Inspection procedure

  1. Inspect fuse (ecu-ig1)

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

Standard resistance: below 1




  1. Inspect battery

  1. Check the battery voltage.

Standard voltage: 11 to 14 v



  1. Check wire harness (skid control ecu - battery)

Toyota RAV4. Check wire harness (skid control ecu - battery)


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

Standard voltage




  1. Check wire harness (skid control ecu - body ground)

Toyota RAV4. Check wire harness (skid control ecu - body ground)


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

Standard resistance 




  1. Reconfirm dtc

  1. Clear the dtc (see page bc-47).
  2. Drive the vehicle at 3 km/h (2 mph) or more for several seconds.
  3. Check if the same dtc is output (see page bc-47).

Result




Replace abs and traction actuator assembly

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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 ...

Other materials:

Installation
Hint: Use the same procedures for the rh side and lh side. The procedures listed below are for the lh side. Install front pillar cover sub-assembly upper lh Attach the 3 clips to install the pillar cover. ...

Opening the fuel tank cap
Pull up the opener to open the fuel filler door. Turn the fuel tank cap slowly to open. Hang the fuel tank cap on the back of the fuel filler door. ...

Disassembly
Hint: When removing the ornament plate and emblem, heat the radiator grille, ornament plate and emblem using a heat light. Standard heating temperature Notice: Do not heat the emblem base and emblem excessively. Remove hood to radiator grille seal Remove the double-side tape. Deta ...

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