Infiniti G20 (P11). Manual — part 167
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Items
(CONSULT-II screen terms)
DTC*1
SRT code
Test value/ Test
limit
(GST only)
1st trip DTC*1
Reference page
A/T 1ST GR FNCTN
P0731
—
—
X
A/T 2ND GR FNCTN
P0732
—
—
X
A/T 3RD GR FNCTN
P0733
—
—
X
A/T 4TH GR FNCTN
P0734
—
—
X
TCC SOLENOID/CIRC
P0740
—
—
X
A/T TCC S/V FNCTN
P0744
—
—
X
L/PRESS SOL/CIRC
P0745
—
—
X
SFT SOL A/CIRC
P0750
—
—
X
SFT SOL B/CIRC
P0755
—
—
X
THERMOSTAT FNCTN
P1126
—
—
X
CLOSED LOOP-B1
P1148
—
—
X
ENG OVER TEMP
P1217
—
—
X
CKP SENSOR COG
P1336
—
—
X
EGR TEMP SEN/CIRC
P1401
—
—
X
EGR SYSTEM
P1402
X
X
X*2
EVAP SMALL LEAK
P1440
X
X
X*2
PURG VOLUME CONT/V
P1444
—
—
X
VENT CONTROL VALVE
P1446
—
—
X
EVAP PURG FLOW/MON
P1447
X
X
X*2
VENT CONTROL VALVE
P1448
—
—
X
FUEL LEVL SEN/CIRC
P1464
—
—
X
VC/V BYPASS/V
P1490
—
—
X
VC CUT/V BYPASS/V
P1491
—
—
X
A/T DIAG COMM LINE
P1605
—
—
X
TP SEN/CIRC A/T
P1705
—
—
X
P-N POS SW/CIRCUIT
P1706
—
—
X
O/R CLTCH SOL/CIRC
P1760
—
—
X
*1: 1st trip DTC No. is the same as DTC No.
*2: These are not displayed with GST.
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
NCEC0031S06
How to Erase DTC (
With CONSULT-II)
NCEC0031S0601
NOTE:
If the DTC is not for A/T related items (see EC-8), skip steps 2 through 4.
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2. Turn CONSULT-II “ON” and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. [The DTC in the TCM (Transmission control module) will be erased.] Then touch “BACK”
twice.
5. Touch “ENGINE”.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Emission-related Diagnostic Information (Cont’d)
EC-79
![](/vehicles/zatt/wheiso/zix/ffinik.png)
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
I
If DTCs are displayed for both ECM and TCM (Transmission control module), they need to be erased
individually from the ECM and TCM (Transmission control module).
SEF823YA
The emission related diagnostic information in the ECM can be erased by selecting “ERASE” in the “SELF-
DIAG RESULTS” mode with CONSULT-II.
How to Erase DTC (
With GST)
NCEC0031S0602
NOTE:
If the DTC is not for A/T related items (see EC-8), skip step 2.
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2. Perform “SELF-DIAGNOSTIC PROCEDURE (Without CONSULT-II)” in AT section titled “TROUBLE
DIAGNOSIS”, “Self-diagnosis”. (The engine warm-up step can be skipped when performing the diagnosis
only to erase the DTC.)
3. Select Mode 4 with GST (Generic Scan Tool).
The emission related diagnostic information in the ECM can be erased by selecting Mode 4 with GST.
I
If the battery is disconnected, the emission-related diagnostic information will be lost after approx.
24 hours.
I
The following data are cleared when the ECM memory is erased.
1) Diagnostic trouble codes
2) 1st trip diagnostic trouble codes
3) Freeze frame data
4) 1st trip freeze frame data
5) System readiness test (SRT) codes
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Emission-related Diagnostic Information (Cont’d)
EC-80
![](/vehicles/zatt/wheiso/zix/xpi.png)
6) Test values
7) Others
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but
all of the data listed above, are cleared from the ECM memory during work procedures.
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM — NATS)
NCEC0031S07
SEF515Y
I
If the security indicator lights up with the ignition switch in the “ON” position or “NATS MALFUNC-
TION” is displayed on “SELF-DIAG RESULTS” screen, perform self-diagnostic results mode with
CONSULT-II using NATS program card. Refer to EL-247, “IVIS (INFINITI Vehicle Immobilizer System
— NATS)”.
I
Confirm no self-diagnostic results of IVIS (NATS) is displayed before touching “ERASE” in “SELF-
DIAG RESULTS” mode with CONSULT-II.
I
When replacing ECM, initialization of IVIS (NATS) system and registration of all IVIS (NATS) igni-
tion key IDs must be carried out with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of IVIS (NATS)
initialization and IVIS (NATS) ignition key ID registration, refer to CONSULT-II operation manual,
IVIS/NVIS.
Malfunction Indicator Lamp (MIL)
DESCRIPTION
NCEC0032
SEF217U
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON without the engine running. This is a bulb check.
I
If the MIL does not light up, refer to EL-98, “WARNING LAMPS” or see EC-631.
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has detected an engine system malfunction.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Emission-related Diagnostic Information (Cont’d)
EC-81
![](/vehicles/zatt/wheiso/zix/sab.png)
On Board Diagnostic System Function
=NCEC0032S01
The on board diagnostic system has the following two functions.
Diagnostic Test
Mode
KEY and ENG.
Status
Function
Explanation of Function
Mode I
Ignition switch in
“ON” position
Engine stopped
BULB CHECK
This function checks the MIL bulb for damage (blown,
open circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running
MALFUNCTION
WARNING
This is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MIL will light up to inform the driver
that a malfunction has been detected.
The following malfunctions will light up or blink the MIL in
the 1st trip.
I
Coolant overtemperature enrichment protection
I
“Misfire (Possible three way catalyst damage)”
I
“Closed loop control”
I
Fail-safe mode
Diagnostic Test Mode I — Bulb Check
In this mode, the MIL on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to EL-98,
“WARNING LAMPS” or see EC-631.
Diagnostic Test Mode I — Malfunction Warning
NCEC0032S0103
MIL
Condition
ON
When the malfunction is detected or the ECM’s CPU is malfunctioning.
OFF
No malfunction.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Malfunction Indicator Lamp (MIL) (Cont’d)
EC-82
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