DTC C0020[01] Pump Motor Electrical Failure (ABS/ESC)

1. Brake control system check

Refer to "54.Brake Control 4A.Troubleshooting(ABS/ESC) diagnostic System Check - Brake Controls".

2. Current DTC check

1) Turn OFF the ignition switch.

2) Connect the scan tool.

3) Start the engine and drive the vehicle.

4) Observe the DTC information with a scan tool. Is a DTC set?

Yes

=>Go to EHCU replacement.

No

Go to Intermittent conditions of brake.

Refer to "205.Brakes 18D.Symptom intermittent conditions of brake".

3. EHCU replacement

Refer to "4.Brakes 4Z.Brake Electrical Control EHCU removal".

Refer to "4.Brakes 4Z.Brake Electrical Control EHCU installation".

Refer to "4.Brakes 4Z.Brake Electrical Control EHCU setting".

Procedure completion

=>Go to Repair verification.

4. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch.

3) Operate under the conditions for setting the DTC.

4) Observe the DTC information with a scan tool.