DTC U2011:1C/U2011:19/U2011:61/U2011:62/U2011:64/U2011:72

id060200817300

DTC

U2011:1C/U2011:19/U2011:61/U2011:62/U2011:64/U2011:72

EPS motor

DETECTION CONDITION

•  Open or short circuit is detected in EPS motor circuit

POSSIBLE CAUSE

•  Open or short to ground circuit in wiring harness between the following EPS control module terminals and EPS motor terminals.

―  EPS control module terminal 4A—EPS motor terminal C

―  EPS control module terminal 4B—EPS motor terminal A

―  EPS control module terminal 4C—EPS motor terminal B

•  EPS motor malfunction

•  EPS control module malfunction

System wiring diagram

am6zzw00001181

Diagnostic Procedure

Step

Inspection

Action

1

INSPECT WHETHER MALFUNCTION IS CAUSED BY POOR CONNECTION OF EPS CM OR PIN DEFORMATION

•  Switch the ignition to off.

•  Inspect connection of the EPS control module and wiring harness.

•  Disconnect the EPS control module connector.

•  Inspect whether malfunction is caused by bent or poorly connected EPS control module connector pin.

•   Are the connector connection, connector pins, and wiring harness normal?

Yes

Go to the next step.

No

Repair or replace the faulty connector wiring harness, then go to Step 5.

2

IINSPECT EPS MOTOR CIRCUIT FOR OPEN CIRCUIT

•  Inspect for continuity between the EPS control module terminals and EPS motor terminals.

―  EPS control module terminal 4A—EPS motor terminal C

―  EPS control module terminal 4B—EPS motor terminal A

―  EPS control module terminal 4C—EPS motor terminal B

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the wiring harness for open circuit between the EPS control module and EPS motor, then go to Step 5.

3

INSPECT EPS MOTOR CIRCUIT FOR SHORT TO POWER

•  Measure the voltage between the EPS motor terminals and ground.

―  EPS motor terminal C—ground

―  EPS motor terminal A—ground

―  EPS motor terminal B—ground

•  Is there any B+?

Yes

Repair or replace the wiring harness for short to power between the EPS control module and EPS motor, then go to Step 5.

No

Go to the next step.

4

INSPECT EPS MOTOR CIRCUIT FOR SHORT TO GROUND

•  Inspect for continuity between the EPS motor terminals and ground.

―  EPS motor terminal C—ground

―  EPS motor terminal A—ground

―  EPS motor terminal B—ground

•  Is there continuity?

Yes

Repair or replace the wiring harness for short to ground between the EPS control module and EPS motor, then go to the next step.

No

Replace the steering gear and linkage (EPS motor), then go to the next step.

(See STEERING GEAR AND LINKAGE REMOVAL/INSTALLATION [L.H.D.].)

(See STEERING GEAR AND LINKAGE REMOVAL/INSTALLATION [R.H.D.].)

5

VERIFY THAT SAME DTC IS NOT PRESENT

•  Make sure to reconnect all disconnected connectors.

•  Clear the DTC from the memory.
(See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

•  Is the same DTC present?
(See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

Yes

Repeat the inspection from Step 1.

If the malfunction recurs, replace the EPS control module.

(See EPS CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

6

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any other DTCs output?
(See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

Yes

Go to the applicable DTC inspection.

(See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)

No

DTC troubleshooting completed.

DTC	U2011:1C/U2011:19/U2011:61/U2011:62/U2011:64/U2011:72		EPS motor
DETECTION CONDITION		• Open or short circuit is detected in EPS motor circuit
POSSIBLE CAUSE		• Open or short to ground circuit in wiring harness between the following EPS control module terminals and EPS motor terminals. ― EPS control module terminal 4A—EPS motor terminal C ― EPS control module terminal 4B—EPS motor terminal A ― EPS control module terminal 4C—EPS motor terminal B • EPS motor malfunction • EPS control module malfunction

Step	Inspection		Action
1	INSPECT WHETHER MALFUNCTION IS CAUSED BY POOR CONNECTION OF EPS CM OR PIN DEFORMATION • Switch the ignition to off. • Inspect connection of the EPS control module and wiring harness. • Disconnect the EPS control module connector. • Inspect whether malfunction is caused by bent or poorly connected EPS control module connector pin. • Are the connector connection, connector pins, and wiring harness normal?	Yes	Go to the next step.
1		No	Repair or replace the faulty connector wiring harness, then go to Step 5.
2	IINSPECT EPS MOTOR CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between the EPS control module terminals and EPS motor terminals. ― EPS control module terminal 4A—EPS motor terminal C ― EPS control module terminal 4B—EPS motor terminal A ― EPS control module terminal 4C—EPS motor terminal B • Is there continuity?	Yes	Go to the next step.
2		No	Repair or replace the wiring harness for open circuit between the EPS control module and EPS motor, then go to Step 5.
3	INSPECT EPS MOTOR CIRCUIT FOR SHORT TO POWER • Measure the voltage between the EPS motor terminals and ground. ― EPS motor terminal C—ground ― EPS motor terminal A—ground ― EPS motor terminal B—ground • Is there any B+?	Yes	Repair or replace the wiring harness for short to power between the EPS control module and EPS motor, then go to Step 5.
3		No	Go to the next step.
4	INSPECT EPS MOTOR CIRCUIT FOR SHORT TO GROUND • Inspect for continuity between the EPS motor terminals and ground. ― EPS motor terminal C—ground ― EPS motor terminal A—ground ― EPS motor terminal B—ground • Is there continuity?	Yes	Repair or replace the wiring harness for short to ground between the EPS control module and EPS motor, then go to the next step.
4		No	Replace the steering gear and linkage (EPS motor), then go to the next step. (See STEERING GEAR AND LINKAGE REMOVAL/INSTALLATION [L.H.D.].) (See STEERING GEAR AND LINKAGE REMOVAL/INSTALLATION [R.H.D.].)
5	VERIFY THAT SAME DTC IS NOT PRESENT • Make sure to reconnect all disconnected connectors. • Clear the DTC from the memory. (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.) • Is the same DTC present? (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the EPS control module. (See EPS CONTROL MODULE REMOVAL/INSTALLATION.)
5		No	Go to the next step.
6	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any other DTCs output? (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)	Yes	Go to the applicable DTC inspection. (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS.)
6		No	DTC troubleshooting completed.