Nissan Maxima Service and Repair Manual: How to erase permanent DTC
Description
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 malfunction
is not detected after performing the driving pattern for MIL shutoff three times
in a raw.

*1: When the same malfunction is detected
in two consecutive trips, MIL
will illuminate.
*2: MIL will turn off after vehicle is driven
3 times (driving pattern B) without
any malfunctions
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 permanent
DTC is not erased, perform the procedure of Group A.

*: For group,
PERMANENT DTC ITEM
For permanent DTC items, MIL turns ON.
PERMANENT DTC SERVICE PROCEDURE

Work Procedure (Group A)

*1: When the same malfunction is detected
in two consecutive trips, MIL
will illuminate.
1.CHECK DTC
Check DTC.
2.CHECK PERMANENT DTC
With CONSULT
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select "PERMANENT DTC STATUS" mode with CONSULT.
With GST
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select Service $0A with GST
3.PERFORM DTC CONFIRMATION PROCEDURE
Perform "DTC CONFIRMATION PROCEDURE" for DTCs which are the same as permanent
DTCs stored in
ECM.
4.CHECK PERMANENT DTC
With CONSULT
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select "PERMANENT DTC STATUS" mode with CONSULT.
With GST
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select Service $0A with GST.
Work Procedure (Group B)

*1: When the same malfunction is detected
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.
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.
2.CHECK PERMANENT DTC
With CONSULT
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select "PERMANENT DTC STATUS" mode with CONSULT.
With GST
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select Service $0A with GST.
3.DRIVE DRIVING PATTERN B
CAUTION:
- Always drive at a safe speed.
- Never erase self-diagnosis results.
- If self-diagnosis results are erased during the trip of driving
pattern B or D, the counter of driving
pattern B and D is reset.
With CONSULT
- Start engine and warm it up to normal operating temperature.
- Use "PERMANENT DTC WORK SUPPORT" mode with CONSULT to drive the
vehicle according to driving
pattern B. Refer to EC-138, "CONSULT Function", EC-132, "DIAGNOSIS
DESCRIPTION : Driving
Pattern".
With GST
- Start engine and warm it up to normal operating temperature.
- Drive the vehicle according to driving pattern B. Refer to EC-132,
"DIAGNOSIS DESCRIPTION : Driving
Pattern".
4.CHECK PERMANENT DTC
With CONSULT
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select "PERMANENT DTC STATUS" mode with CONSULT.
With GST
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- . Turn ignition switch ON.
- Select Service $0A with GST.
5.DRIVE DRIVING PATTERN D
CAUTION:
- Always drive at a safe speed.
- Never erase self-diagnosis results.
- If self-diagnosis results are erased during the trip of driving
pattern B or D, the counter of driving
pattern B and D is reset.
- Drive the vehicle according to driving pattern D. Refer to EC-132,
"DIAGNOSIS DESCRIPTION : Driving
Pattern".
6.CHECK PERMANENT DTC
With CONSULT
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select "PERMANENT DTC STATUS" mode with CONSULT.
With GST
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select Service $0A with GST.
Description
OUTLINE
In order to set all SRTs, the self-diagnoses as in the "SRT ITEM" table must
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