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
3
Three way catalyst function
P0420, P0430
EVAP SYSTEM
2
EVAP control system (small leak) (negative pressure)
P0440
—
EVAP control system (small leak) (positive pressure)
P1440*1
3
EVAP control system purge flow monitoring
P1447
HO2S
3
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
3
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.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
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
+
ON
,
OFF
+
ON
,
OFF
+
ON
,
OFF
+
ON
,
All OK
Case 1
P0400
OK (1)
— (1)
OK (2)
— (2)
P0402
OK (1)
— (1)
— (1)
OK (2)
P1402
OK (1)
OK (2)
— (2)
— (2)
SRT of EGR
“CMPLT”
“CMPLT”
“CMPLT”
“CMPLT”
Case 2
P0400
OK (1)
— (1)
— (1)
— (1)
P0402
— (0)
— (0)
OK (1)
— (1)
P1402
OK (1)
OK (2)
— (2)
— (2)
SRT of EGR
“INCMP”
“INCMP”
“CMPLT”
“CMPLT”
NG exists
Case 3
P0400
OK
OK
—
—
P0402
—
—
—
—
P1402
NG
—
NG
NG
(Consecutive
NG)
(1st trip)
DTC
1st trip DTC
—
1st trip DTC
DTC
(= MIL “ON”)
SRT of EGR
“INCMP”
“INCMP”
“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:
I
The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.
I
The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.
I
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.
I
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
*1
*2
*3
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.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
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
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