Open in abs solenoid relay circuit

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 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.

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

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

1. 1
   Inspect fuses (abs2)
2. 2
   Remove the abs2 h-fuse from the engine room no. 1 Relay block.
3. 3
   Measure the resistance of the fuse.

Standard resistance: below 1

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

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

Standard voltage

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

Standard resistance

1. 1
   Reconfirm dtc
2. 2
   Clear the dtcs (see page bc-47).
3. 3
   Start the engine.
4. 4
   Drive the vehicle at 6 km/h or more to activate the initial check.
5. 5
   Check if the same dtcs is output (see page bc-47).

Result