Toyota RAV4 manuals

Toyota RAV4 (XA40) 2013-2018 Service Manual: Open in abs solenoid relay circuit

Toyota RAV4. Open in abs solenoid relay circuit


Description

The solenoid relay supplies power to the abs solenoid and trc solenoid.

After the ignition switch is turned on, the vehicle speed has reached 6 km/h (4 mph) and the solenoid is determined to be normal by the initial check self-diagnosis, the relay switches on. If any open or short circuits are detected, the relay switches off.

These dtcs may be set if the voltage supply to the solenoid relay (+bs) falls below the dtc detection threshold due to the battery or alternator outputs being insufficient.

Toyota RAV4. Open in abs solenoid relay circuit


Hint:

Dtcs c0278/11 and c0279/12: the skid control ecu begins to detect these dtcs when the vehicle speed exceeds 6 km/h (4 mph).

Wiring diagram

Refer to dtc c0273/13, c0274/14, c1361/91 (see page bc-79).

Inspection procedure

  1. Inspect fuses (abs2)

  1. Remove the abs2 h-fuse from the engine room no. 1 Relay block.
  2. Measure the resistance of the fuse.

Standard resistance: below 1




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

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


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

Standard voltage


  1. Measure the resistance of the wire harness side connector.

Standard resistance




  1. Reconfirm dtc

  1. Clear the dtcs (see page bc-47).
  2. Start the engine.
  3. Drive the vehicle at 6 km/h (4 mph) or more to activate the initial check.
  4. Check if the same dtcs is output (see page bc-47).

Result




Replace abs and traction actuator assembly

Solenoid circuit
Description This solenoid is turned on in accordance with signals from the skid control ecu and controls the pressure on the wheel cylinders to control the braking force. The solenoid and s ...

Engine control system malfunction
Description If a malfunction in the engine control system is detected, the operations of vsc and trc are prohibited by the fail-safe function. When the signals from the engine are input normal ...

Other materials:

Power steering ecu
Components Removal Disconnect cable from negative battery terminal Remove instrument panel sub-assembly upper Remove the instrument panel (see page ip-4). Remove power steering ecu Disconnect the 4 connectors. Remove the 3 nuts and remove the power steering e ...

Removal
Disconnect cable from negative battery terminal Caution: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. Remove accelerator pedal rod Disconnect the accelerator pedal position ...

Problem symptoms table (2005/11-2006/01)
Hint: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Re ...

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