Open in pump motor circuit

The motor relay drives the pump motor based on a signal from the skid control ecu.

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

1. 1
   Perform active test by intelligent tester (motor relay)
2. 2
   Select the active test, generate a control command, and then check that the abs motor relay operates.

   

1. 1
   Reconfirm dtc
2. 2
   Clear the dtc (see page bc-47).
3. 3
   Start the engine.
4. 4
   Drive the vehicle at a speed of 6 km/h or more for several seconds.
5. 5
   Check if the same dtc is output (see page bc-47).

Result

1. 1
   Inspect fuse (abs1)
2. 2
   Remove the abs1 h-fuse from the engine room no. 1 Relay block.
3. 3
   Measure the resistance of the fuse.

Standard resistance: below 1

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

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

Standard resistance

3. Measure the voltage of the wire harness side connector.

Standard voltage