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

Stuck in deceleration sensor
Description The skid control ecu receives signals from the yaw rate and deceleration sensor via the can communication system. The yaw rate sensor has a built-in deceleration sensor and dete ...

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:

Using the “setup” menu (“phone” menu)
Functions and operation procedures To enter the menu for each function, press the “setup” button and follow the steps below using the “tune•scroll” knob: Adding a new phone number 1. Phone 2.  Phonebook   3.  Add contacts  Setting speed dials 1. Ph ...

Fuel information
You must only use unleaded gasoline in your vehicle. Select octane rating 87 (research octane number 91) or higher. Use of unleaded gasoline with an octane rating lower than 87 may result in engine knocking. Persistent knocking can lead to engine damage. At minimum, the gasoline you use sho ...

Fuel pressure regulator
Components Removal Remove fuel tank assembly Remove the fuel tank (see page fu-39). Remove fuel tank main tube sub-assembly Remove the joint clip and fuel tank main tube. Caution: Before removing the tube joint clip, check for foreign matter around the cli ...

© 2011-2026 Copyright www.trav4.net