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Infiniti I30 (A33). Manual - part 189

SRT Item

=NHEC0031S0310

The table below shows required self-diagnostic items to set the SRT to “CMPLT”.

SRT item

(CONSULT-II indica-

tion)

Perfor-

mance Pri-

ority*2

Required self-diagnostic items to set the SRT to “CMPLT”

Corresponding

DTC No.

CATALYST

Three way catalyst function

P0420, P0430

EVAP SYSTEM

EVAP control system (small leak) (negative pressure)

P0440

—

EVAP control system (small leak) (positive pressure)

P1440*1

EVAP control system purge flow monitoring

P1447

HO2S

Heated oxygen sensor 1 (front) (circuit)

P0130, P0150

Heated oxygen sensor 1 (front) (lean shift monitoring)

P0131, P0151

Heated oxygen sensor 1 (front) (rich shift monitoring)

P0132, P0152

Heated oxygen sensor 1 (front) (response monitoring)

P0133, P0153

Heated oxygen sensor 1 (front) (high voltage)

P0134, P0154

Heated oxygen sensor 2 (rear) (min. voltage monitoring)

P0137, P0157

Heated oxygen sensor 2 (rear) (max. voltage monitoring)

P0138, P0158

Heated oxygen sensor 2 (rear) (response monitoring)

P0139, P0159

Heated oxygen sensor 2 (rear) high voltage)

P0140, P0160

HO2S HTR

Heated oxygen sensor 1 heater (front)

P0135, P0155

Heated oxygen sensor 2 heater (rear)

P0141, P0161

*1: P1440 [EVAP control system (small leak) (positive pressure) diagnosis] is one type of SRT related diagnosis. This diagnosis, however,
does not contribute to setting the SRT as “CMPLT”, when no malfunction exists in the EVAP system. Therefore, P0440 must be used
instead of P1440.
*2: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the priority
for models with CONSULT-II.

IDX

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Emission-related Diagnostic Information (Cont’d)

EC-71

SRT Set Timing

=NHEC0031S0311

SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is done
regardless of whether the result is OK or NG. The set timing is different between OK and NG results and is
shown in the table below.

Self-diagnosis result

Example

Diagnosis

Ignition cycle

OFF

All OK

Case 1

P0400

OK (1)

— (1)

OK (2)

— (2)

P0402

OK (1)

— (1)

OK (2)

P1402

OK (1)

OK (2)

— (2)

SRT of EGR

“CMPLT”

Case 2

P0400

OK (1)

— (1)

P0402

— (0)

OK (1)

— (1)

P1402

OK (1)

OK (2)

— (2)

SRT of EGR

“INCMP”

“CMPLT”

NG exists

Case 3

P0400

—

P0402

—

P1402

—

(Consecutive

NG)

(1st trip)

DTC

1st trip DTC

—

1st trip DTC

DTC

(= MIL “ON”)

SRT of EGR

“INCMP”

“CMPLT”

OK: Self-diagnosis is carried out and the result is OK.
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.

When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT
will indicate “CMPLT”.

Case 1 above

When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indi-
cate “CMPLT” at the time the respective self-diagnoses have at least one OK result.

Case 2 above

If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indi-
cate “CMPLT”.

Case 3 above

The table above shows that the minimum number of cycles for setting SRT as “INCMP” is one (1) for each
self-diagnosis (Case 1 & 2) or two (2) for one of self-diagnoses (Case 3). However, in preparation for the state
emissions inspection, it is unnecessary of each self-diagnosis to be executed twice (Case 3) for the following
reasons:

The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.

The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.

When, during SRT driving pattern, 1st trip DTC (NG) is detected prior to “CMPLT” of SRT, the self-diag-
nosis memory must be erased from ECM after repair.

If the 1st trip DTC is erased, all the SRT will indicate “INCMP”.

NOTE:
SRT can be set as “CMPLT” together with the DTC(s). Therefore, DTC check must always be carried out prior
to the state emission inspection even though the SRT indicates “CMPLT”.

SRT Service Procedure

NHEC0031S0312

If a vehicle has failed the state emissions inspection due to one or more SRT items indicating “INCMP”, review
the flowchart diagnostic sequence on the next page.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Emission-related Diagnostic Information (Cont’d)

EC-72

SEF573XA

EC-69

EC-73

EC-74

How to Display SRT Code

NHEC0031S0301

With CONSULT-II

Selecting “SRT STATUS” in “DTC CONFIRMATION” mode with CONSULT-II.
For items whose SRT codes are set, a “CMPLT” is displayed on the CONSULT-II screen; for items whose SRT
codes are not set, “INCMP” is displayed.

With GST

Selecting Mode 1 with GST (Generic Scan Tool)
A sample of CONSULT-II display for SRT code is shown below.
“INCMP” means the self-diagnosis is incomplete and SRT is not set. “CMPLT” means the self-diagnosis is
complete and SRT is set.

IDX

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Emission-related Diagnostic Information (Cont’d)

EC-73

SEF935Z

How to Set SRT Code

NHEC0031S0302

To set all SRT codes, self-diagnosis for the items indicated above must be performed one or more times. Each
diagnosis may require a long period of actual driving under various conditions.

With CONSULT-II

Perform corresponding DTC Confirmation Procedure one by one based on “Performance Priority” in the table
on EC-71.

Without CONSULT-II

The most efficient driving pattern in which SRT codes can be properly set is explained on the next page. The
driving pattern should be performed one or more times to set all SRT codes.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Emission-related Diagnostic Information (Cont’d)

EC-74

Content .. 187 188 189 190 ..