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:

Pressure control solenoid "d" performance (shift solenoid valve slt)
Description The throttle pressure that is applied to the primary regulator valve (which modulates the line pressure) causes the solenoid valve slt, under electronic control, to precisely modulate and generate the line pressure according to the extent that the accelerator pedal is depr ...

Operation check
Check key reminder warning system Check that the key reminder warning buzzer sounds. With the driver side door closed, insert the key into the ignition key cylinder and then turn the ignition switch to lock or acc. Check that the buzzer sounds intermittently when the driver ...

Child restraint seat tether anchor
Components Removal Remove child restraint seat tether anchor cover Using a screwdriver, detach the 4 claws and remove the cover. Hint: Tape the screwdriver tip before use. Remove roof headlining assembly Hint: It is not necessa ...

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