DTC U3000:4B

id060200816400

Warning

• The EPS CM temperature could become high and may cause a burn. Before performing the work, verify that the steering column is cold.

DTC U3000:4B

EPS CM

DETECTION CONDITION

•  Abnormal temperature in EPS CM is detected

FAIL-SAFE FUNCTION

•  Control is maintained in fail mode

•  Power steering malfunction indicator light: Not illuminated

POSSIBLE CAUSE

•  Due to the continuously static steering, being turned to the lock end, or other causes, the internal temperature of the EPS CM is more than the specified value.

•  EPS CM malfunction

SYSTEM WIRING DIAGRAM

—

Diagnostic Procedure

Step

Inspection

Action

1

SWITCH THE IGNITION TO OFF AND ALLOW EPS CONTROL MODULE TO COOL DOWN.

2

VERIFY THAT SAME DTC IS NOT PRESENT

•  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 CM.

(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)

No

Go to the next step.

3

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 U3000:4B	EPS CM
DETECTION CONDITION	• Abnormal temperature in EPS CM is detected
FAIL-SAFE FUNCTION	• Control is maintained in fail mode • Power steering malfunction indicator light: Not illuminated
POSSIBLE CAUSE	• Due to the continuously static steering, being turned to the lock end, or other causes, the internal temperature of the EPS CM is more than the specified value. • EPS CM malfunction
SYSTEM WIRING DIAGRAM	—

Step	Inspection		Action
1	SWITCH THE IGNITION TO OFF AND ALLOW EPS CONTROL MODULE TO COOL DOWN.
2	VERIFY THAT SAME DTC IS NOT PRESENT • 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 CM. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	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.)
3		No	DTC troubleshooting completed.