INFINITI FX35 2006 Service Manual

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-57
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Revision: 2006 December 2006 FX35/FX45EVAP GROSS LEAK P0455 0455 — — 2 ×EC-442
EVAP VERY SML LEAK P0456 0456
× *4× 2 ×EC-450
FUEL LEV SEN SLOSH P0460 0460 — — 2 ×EC-460
FUEL LEVEL SENSOR P0461 0461 — — 2 ×EC-462
FUEL LEVL SEN/CIRC P0462 0462 — — 2 ×EC-464
FUEL LEVEL SEN/CIRC P0463 0463 — — 2 ×EC-464
VEH SPEED SEN/CIRC*6P0500 0500 — — 2 ×EC-466
ISC SYSTEM P0506 0506 — — 2 ×EC-468
ISC SYSTEM P0507 0507 — — 2 ×EC-470
PW ST P SEN/CIRC P0550 0550 — — 2 — EC-472
ECM BACK UP/CIRCUIT P0603 0603 — — 2×EC-477
ECM P0605 0605 — — 1 or 2 × or — EC-481
SENSOR POWER/CIRC P0643 0643 — — 1 ×EC-484
TCM P0700 0700 — — 1 ×AT- 111
PNP SW/CIRC P0705 0705 — — 2 ×AT- 11 2
ATF TEMP SEN/CIRC P0710 0710 — — 2 ×AT-134
TURBINE SENSOR P0717 0717 — — 2 ×AT- 11 6
VEH SPD SEN/CIR AT*6P0720 0720 — — 2 ×AT- 11 8
TCC SOLENOID/CIRC P0740 0740 — — 2 ×AT-125
A/T TCC S/V FNCTN P0744 0744 — — 2 ×AT-127
L/PRESS SOL/CIRC P0745 0745 — — 2 ×AT-129
P-N POS SW/CIRCUIT P0850 0850 — — 2 ×EC-489
CLOSED LOOP-B1 P1148 1148 — — 1 ×EC-494
CLOSED LOOP-B2 P1168 1168 — — 1 ×EC-494
TCS C/U FUNCTN P1211 1211 — — 2 — EC-495
TCS/CIRC P1212 1212 — — 2 —EC-496
ENG OVER TEMP P1217 1217 — — 1×EC-497
CTP LEARNING P1225 1225 — — 2 — EC-510
CTP LEARNING P1226 1226 — — 2 —EC-512
ASCD SW P1564 1564 — — 1 — EC-514,
EC-521
ICC COMMAND VALUE*7P1568 1568 — — 1 — EC-528
ASCD BRAKE SW P1572 1572 — — 1 — EC-529,
EC-538
ASCD VHL SPD SEN P1574 1574 — — 1 — EC-546,
EC-548
NATS MALFUNCTION P1610 -
P1615 1610 - 1615 — — 2 —
EC-53
IN PULLY SPEED P1715 1715 — — 2 — EC-550
A/T INTERLOCK P1730 1730 — — 1×AT-141
I/C SOLENOID/CIRC P1752 1752 — — 1 ×AT-146
I/C SOLENOID FNCTN P1754 1754 — — 1 ×AT-148
FR/B SOLENOID/CIRC P1757 1757 — — 1 ×AT-150
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Test limit
(GST only) Trip
Reference
page
CONSULT-II
GST*
2ECM*3

EC-58
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: SRT code will not be set if the self-diagnostic result is NG.
*5: The trouble shooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*7: For models with ICC system.
*8: When the ECM is in the mode of displaying SRT status, MIL may flash. For the details, refer to EC-62, "
How to Display SRT Status" .
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MIL will not
light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MIL lights up. In other words,
the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MIL during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in EC-67, "
HOW
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-55, "
EMISSION-RELATED DIAGNOSTIC
INFORMATION ITEMS" . These items are required by legal regulations to continuously monitor the system/
component. In addition, the items monitored non-continuously are also displayed on CONSULT-II.
1st trip DTC is specified in Service $07 of SAE J1979. 1st trip DTC detection occurs without lighting up the MIL
and therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent the
vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
FR/B SOLENOID FNCT P1759 1759 — — 1 ×AT-152
D/C SOLENOID/CIRC P1762 1762 — — 1 ×AT-154
D/C SOLENOID FNCTN P1764 1764 — — 1 ×AT-156
HLR/C SOL/CIRC P1767 1767 — — 1 ×AT-158
HLR/C SOL FNCTN P1769 1769 — — 1 ×AT-160
LC/B SOLENOID/CIRC P1772 1772 — — 1 ×AT-162
LC/B SOLENOID FNCT P1774 1774 — — 1 ×AT-164
BRAKE SW/CIRCUIT P1805 1805 — — 2 — EC-551
ETC MOT PWR P2100 2100 — — 1×EC-556
ETC FUNCTION/CIRC P2101 2101 — — 1 ×EC-562
ETC MOT PWR P2103 2103 — — 1 ×EC-556
ETC MOT P2118 2118 — — 1 ×EC-568
ETC ACTR P2119 2119 — — 1 ×EC-573
APP SEN 1/CIRC P2122 2122 — — 1 ×EC-575
APP SEN 1/CIRC P2123 2123 — — 1 ×EC-575
APP SEN 2/CIRC P2127 2127 — — 1 ×EC-582
APP SEN 2/CIRC P2128 2128 — — 1 ×EC-582
TP SENSOR P2135 2135 — — 1 ×EC-589
APP SENSOR P2138 2138 — — 1 ×EC-596
A/F SENSOR1 (B1) P2A00 2A00 — ×2 ×EC-604
A/F SENSOR1 (B2) P2A03 2A03 — ×2 ×EC-604
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Test limit
(GST only) Trip
Reference
page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-59
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EC
Revision: 2006 December 2006 FX35/FX45
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in Work Flow procedure Step II, refer to EC-89, "
WORK FLOW" . Then perform DTC Confir-
mation Procedure or Overall Function Check to try to duplicate the malfunction. If the malfunction is dupli-
cated, the item requires repair.
How to Read DTC and 1st Trip DTC
DTC and 1st trip DTC can be read by the following methods.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P0850, P1148, etc.
These DTCs are prescribed by SAE J2012.
(CONSULT-II also displays the malfunctioning component or system.)
No Tools
The number of blinks of the MIL in the Diagnostic Test Mode II (Self-Diagnostic Results) indicates the DTC.
Example: 0340, 0850, 1148, etc.
These DTCs are controlled by NISSAN.

1st trip DTC No. is the same as DTC No.

Output of a DTC indicates a malfunction. However, GST or the Diagnostic Test Mode II do not indi-
cate whether the malfunction is still occurring or has occurred in the past and has returned to nor-
mal. CONSULT-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if
available) is recommended.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown below. DTC or 1st trip DTC of a malfunc-
tion is displayed in SELF-DIAGNOSTIC RESULTS mode of CONSULT-II. Time data indicates how many times
the vehicle was driven after the last detection of a DTC.
If the DTC is being detected currently, the time data will be [0].
If a 1st trip DTC is stored in the ECM, the time data will be [1t].
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-
perature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, absolute throttle position, base
fuel schedule and intake air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, see EC-122, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
PBIB0911E
Priority Items
1 Freeze frame data Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

EC-60
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was stored in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different mal-
function is detected. There is no priority for 1st trip freeze frame data. However, once freeze frame data is
stored in the ECM memory, 1st trip freeze data is no longer stored (because only one freeze frame data or 1st
trip freeze frame data can be stored in the ECM). If freeze frame data is stored in the ECM memory and freeze
frame data with the same priority occurs later, the first (original) freeze frame data remains unchanged in the
ECM memory.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM mem-
ory is erased. Procedures for clearing the ECM memory are described in EC-67, "
HOW TO ERASE EMIS-
SION-RELATED DIAGNOSTIC INFORMATION" .
SYSTEM READINESS TEST (SRT) CODE
System Readiness Test (SRT) code is specified in Service $01 of SAE J1979.
As part of an enhanced emissions test for Inspection & Maintenance (I/M), certain states require the status of
SRT be used to indicate whether the ECM has completed self-diagnosis of major emission systems and com-
ponents. Completion must be verified in order for the emissions inspection to proceed.
If a vehicle is rejected for a State emissions inspection due to one or more SRT items indicating “INCMP”, use
the information in this Service Manual to set the SRT to “CMPLT”.
In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT
status will indicate “CMPLT” for each application system. Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.
Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer's
normal driving pattern; the SRT will indicate “INCMP” for these items.
NOTE:
The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM mem-
ory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will con-
tinue with the emissions test. However, if the SRT indicates “INCMP” for one or more of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If MIL is ON during the state emissions inspection, the vehicle is also returned to the customer untested even
though the SRT indicates “CMPLT” for all test items. Therefore, it is important to check SRT (“CMPLT”) and
DTC (No DTCs) before the inspection.
SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the pr iority for
models with CONSULT-II.
SRT Set Timing
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.
SRT item
(CONSULT-II indica-
tion) Perfor-
mance Pri-
ority* Required self-diagnostic items to set the SRT to “CMPLT”
Corresponding DTC
No.
CATALYST 2 Three way catalyst function P0420, P0430
EVAP SYSTEM 1 EVAP control system P0442
2 EVAP control system P0456
2 EVAP control system purge flow monitoring P0441
HO2S 2 Air fuel ratio (A/F) sensor 1 P0133, P0153
Heated oxygen sensor 2 P0137, P0157
Heated oxygen sensor 2 P0138, P0158
Heated oxygen sensor 2 P0139, P0159

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-61
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EC
Revision: 2006 December 2006 FX35/FX45
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 indicate
“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 for 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-diagno-
sis 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
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.
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”

EC-62
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
How to Display SRT Status
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.
A sample of CONSULT-II display for SRT code is shown in the fig-
ure.
“INCMP” means the self-diagnosis is incomplete and SRT is not set.
“CMPLT” means the self-diagnosis is complete and SRT is set.
*1 EC-59*2 EC-62*3EC-63
PBIB2320E
SEF949Z

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-63
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EC
Revision: 2006 December 2006 FX35/FX45
NOTE:
Though displayed on the CONSULT-II screen, “HO2S HTR” is not SRT item.
WITH GST
Selecting Service $01 with GST (Generic Scan Tool)
NO TOOLS
A SRT code itself can not be displayed while only SRT status can be.
1. Turn ignition switch ON and wait 20 seconds.
2. SRT status is indicated as shown below.

When all SRT codes are set, MIL lights up continuously.

When any SRT codes are not set, MIL will flash periodically for 10 seconds.
How to Set SRT Code
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-60, "
SRT Item" .
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.
PBIB2317E

EC-64
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
Driving Pattern
PBIB2906E

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-65
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EC
Revision: 2006 December 2006 FX35/FX45

The time required for each diagnosis varies with road surface conditions, weather, altitude, individual driv-
ing habits, etc.
Zone A refers to the range where the time, required for the diagnosis under normal conditions*, is the
shortest.
Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed
within zone A.
*: Normal conditions refer to the following:

Sea level

Flat road

Ambient air temperature: 20 - 30 °C (68 - 86 °F)

Diagnosis is performed as quickly as possible under normal conditions.
Under different conditions [For example: ambient air temperature other than 20 - 30 °C (68 - 86 °F)], diag-
nosis may also be performed.
Pattern 1:

The engine is started at the engine coolant temperature of −10 to 35 °C (14 to 95 °F)
(where the voltage between the ECM terminal 73 and ground is 3.0 - 4.3V).

The engine must be operated at idle speed until the engine coolant temperature is greater than
70 °C (158 °F) (where the voltage between the ECM terminal 73 and ground is lower than 1.4V).

The engine is started at the fuel tank temperature of warmer than 0 °C (32 °F) (where the voltage
between the ECM terminal 107 and ground is less than 4.1V).
Pattern 2:

When steady-state driving is performed again even after it is interrupted, each diagnosis can be con-
ducted. In this case, the time required for diagnosis may be extended.
Pattern 3:

Operate vehicle following the driving pattern shown in the figure.

replace the accelerator pedal during decelerating vehicle speed
from 90km/h(56MPH) to 0km/h(0MPH).
Pattern 4:

The accelerator pedal must be held very steady during steady-
state driving.

If the accelerator pedal is moved, the test must be conducted all
over again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56
MPH), then release the accelerator pedal and keep it released for
more than 10 seconds. Depress the accelerator pedal until vehicle
speed is 90 km/h (56 MPH) again.
*2: Checking the vehicle speed with GST is advised.
Suggested Transmission Gear Position
Set the selector lever in the D position.
TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)
The following is the information specified in Service $06 of SAE J1979.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.
PBIB2244E

EC-66
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
Item Self-diagnostic test item DTC Test value
(GST display) Test limit Conversion
TID CID
CATALYST Three way catalyst function (Bank 1)
P0420 01H 01H Max. 1/128
P0420 02H 81H Min. 1
Three way catalyst function (Bank 2) P0430 03H 02H Max. 1/128
P0430 04H 82H Min. 1
EVAP SYSTEM EVAP control system (Small leak) P0442 05H 03H Max.
1/128mm
2
EVAP control system purge flow monitoring P0441 06H 83H Min. 20mV
EVAP control system (Very small leak) P0456 07H 03H Max. 1/128mm
2
HO2S Air fuel ratio (A/F) sensor 1 (Bank 1)
P0131 41H 8EH Min. 5 mV
P0132 42H 0EH Max. 5 mV
P2A00 43H 0EH Max. 0.002
P2A00 44H 8EH Min. 0.002 P0133 45H 8EH Min. 0.004
P0130 46H 0EH Max. 5 mV
P0130 47H 8EH Min. 5 mV
P0133 48H 8EH Min. 0.004
Air fuel ratio (A/F) sensor 1 (Bank 2) P0151 4CH 8FH Min. 5 mV
P0152 4DH 0FH Max. 5 mV
P2A03 4EH 0FH Max. 0.002
P2A03 4FH 8FH Min. 0.002 P0153 50H 8FH Min. 0.004
P0150 51H 0FH Max. 5 mV
P0150 52H 8FH Min. 5 mV
P0153 53H 8FH Min. 0.004
Heated oxygen sensor 2 (Bank 1) P0139 19H 86H Min. 10mV/500ms
P0137 1AH 86H Min. 10mV
P0138 1BH 06H Max. 10mV
P0138 1CH 06H Max. 10mV
Heated oxygen sensor 2 (Bank 2) P0159 21H 87H Min. 10mV/500ms
P0157 22H 87H Min. 10mV
P0158 23H 07H Max. 10mV
P0158 24H 07H Max. 10mV
HO2S HEATER Air fuel ratio (A/F) sensor 1 heater (Bank 1)
P0032 57H 10H Max. 5 mV
P0031 58H 90H Min. 5 mV
Air fuel ratio (A/F) sensor 1 heater (Bank 2) P0052 59H 11H Max. 5 mV
P0051 5AH 91H Min. 5 mV
Heated oxygen sensor 2 heater (Bank 1) P0038 2DH 0AH Max. 20mV
P0037 2EH 8AH Min. 20mV
Heated oxygen sensor 2 heater (Bank 2) P0058 2FH 0BH Max. 20mV
P0057 30H 8BH Min. 20mV