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:

Installation
Install crankshaft position sensor Notice: Make sure that the o-ring is not cracked or jammed when installing it. Apply a light coat of engine oil to the o-ring of the sensor. Install the sensor with the bolt. Torque: 9.0 N*m (90 kgf*cm, 80 in.*Lbf) Install the wire ha ...

Removal and installation of engine intake parts
If any metal particles enter inlet system parts, they may damage the engine. When removing and installing inlet system parts, cover the openings of the removed parts and engine openings. Use gummed tape or other suitable materials. When installing inlet system parts, check that no ...

Throttle / pedal position sensor / switch "d" circuit range / performance
Description Hint: Refer to dtc p2120 (see page es-282). Monitor description When the difference between the output voltages of vpa and vpa2 deviates from the standard, the ecm determines that the accelerator pedal position (app) sensor is malfunctioning. The ecm turns on the mil and th ...

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