Nissan Titan. Instruction — part 209

HOW TO ERASE PERMANENT DTC

EC-137

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HOW TO ERASE PERMANENT DTC

Description

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OUTLINE

When a DTC is stored in ECM

When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL shutoff if the same mal-

function is not detected after performing the driving pattern for MIL shutoff three times in a raw.

When a DTC is not stored in ECM

The erasing method depends on a permanent DTC stored in ECM. Refer to the following table.

NOTE:

If the applicable permanent DTC includes multiple groups, perform the procedure of Group B first. If the per-

manent DTC is not erased, perform the procedure of Group A.

×: Applicable —: Not applicable

*: For group, refer to

EC-75, "DTC Index"

.

PERMANENT DTC ITEM

For permanent DTC items, MIL turns ON. Refer to

EC-75, "DTC Index"

.

*1: When the same malfunction is de-

tected in two consecutive trips, MIL
will illuminate.

*2: MIL will turn off after vehicle is driven

3 times (driving pattern B) without
any malfunctions.

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Group

*

Perform “DTC CONFIRMATION PROCE-

DURE” for applicable DTCs.

Driving pattern

Reference

B

D

A

×

—

—

EC-138

B

—

×

×

EC-140

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HOW TO ERASE PERMANENT DTC

PERMANENT DTC SERVICE PROCEDURE

Work Procedure (Group A)

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HOW TO ERASE PERMANENT DTC

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1.

CHECK DTC

Check DTC.
Is any DTC detected?

YES

>> Repair malfunction(s) and erase DTC. Refer to

EC-49, "CONSULT Function"

,

EC-46, "On Board

Diagnosis Function"

.

NO

>> GO TO 2.

2.

CHECK PERMANENT DTC

With CONSULT

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select “PERMANENT DTC STATUS” mode with CONSULT.

With GST

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select Service $0A with GST.
Is any permanent DTC detected?

YES

>> GO TO 3.

NO

>> END

3.

PERFORM DTC CONFIRMATION PROCEDURE

Perform “DTC CONFIRMATION PROCEDURE” for DTCs which are the same as permanent DTCs stored in

ECM. Refer to

EC-49, "CONSULT Function"

,

EC-46, "On Board Diagnosis Function"

.

>> GO TO 4.

4.

CHECK PERMANENT DTC

With CONSULT

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select “PERMANENT DTC STATUS” mode with CONSULT.

With GST

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select Service $0A with GST.
Is any permanent DTC detected?

YES

>> GO TO 1.

NO

>> END

*1: When the same malfunction is de-

tected in two consecutive trips, MIL
will illuminate.

EC-140

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HOW TO ERASE PERMANENT DTC

Work Procedure (Group B)

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NOTE:

Drive the vehicle according to only driving patterns indicating “INCMP” in driving patterns B and D on the

“PERMANENT DTC STATUS” screen.

1.

CHECK DTC

Check DTC.
Is any DTC detected?

YES

>> Repair malfunction(s) and erase DTC. Refer to

EC-49, "CONSULT Function"

,

EC-46, "On Board

Diagnosis Function"

.

NO

>> GO TO 2.

2.

CHECK PERMANENT DTC

With CONSULT

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select “PERMANENT DTC STATUS” mode with CONSULT.

With GST

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

*1: When the same malfunction is de-

tected in two consecutive trips, MIL
will illuminate.

*2: After experiencing driving pattern B

and D, permanent DTC is erased.

*3: Indication does not change unless

the ignition switch is turned from ON
to OFF twice even after experiencing
driving pattern B or D.

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