SEC NISSAN TEANA 2014 Service Manual

DIAGNOSIS SYSTEM (ECM)EC-597
< SYSTEM DESCRIPTION > [VQ35DE]
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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 show OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
When all SRT related self-diagnoses show OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective se lf-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses show NG resu lts in 2 consecutive cycles, the SRT will also indicate
“CMPLT”. → Case 3 above
The table above shows that the minimum number of cycles for setting SRT as “INCMP” is the number one (1)
for each self-diagnosis (Case 1 & 2) or the number 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.
• During SRT driving pattern, the 1st trip DTC (NG) is detected prior to “CMPLT” of SRT and the self-diagnosis
memory must be erased from the 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”.
DIAGNOSIS DESCRIPTION : Permanent Di agnostic Trouble Code (Permanent DTC)
INFOID:0000000009462538
Permanent DTC is defined in SAE J1979/ISO 15031-5 Service $0A.
ECM stores a DTC issuing a command of turning on MIL as a permanent DTC and keeps storing the DTC as
a permanent DTC until ECM judges that there is no presence of malfunction.
Permanent DTCs cannot be erased by using the Erase f unction of CONSULT or Generic Scan Tool (GST) and
by disconnecting the battery to shut of f power to ECM. This prevents a vehicle from passing the state emission
inspection without repairing a malfunctioning part.
When not passing the state emission inspection due to more than one permanent DTC, permanent DTCs
should be erased, referring to this manual.
NOTE:
• The important items in state emission inspection are t hat MIL is not ON, SRT test items are set, and perma-
nent DTCs are not included.
• Permanent DTCs do not apply for regions that permanent DTCs are not regulated by law.
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”
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DIAGNOSIS SYSTEM (ECM)EC-599
< SYSTEM DESCRIPTION > [VQ35DE]
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This function allows to read if ECM has completed
the self-diagnoses of major emission control systems and
components. For SRT, refer to EC-596, "DIAGNOSIS DESCRIPTION : System Readiness Test (SRT) Code"
.
Operation Procedure
1. Turn ignition switch ON and wait 20 seconds.
2. SRT status is indicated as shown blow. • ECM continues to illuminate MIL if all SRT codes are set.
• ECM blinks MIL for about 10 seconds if all SRT codes are not set.
MALFUNCTION WARNING MODE
Description
In this function ECM turns on or blinks MIL when it detects a malfunction in the emission control system com-
ponents and/or the powertrain control components (which affe ct vehicle emissions) to inform the driver that a
malfunction has been detected.
Operation Procedure
1. Turn ignition switch ON.
2. Check that MIL illuminates. If it remains OFF, check MIL circuit. Refer to EC-973, "Diagnosis Procedure"
.
3. Start engine and let it idle. • For two trip detection logic diagnoses, ECM turns on MIL when it detects the same malfunction twice in
the two consecutive driving cycles.
• For 1st trip detection logic diagnoses, ECM turns on MIL when it detects a malfunction in one driving
cycle.
• ECM blinks MIL when it detects a malfunction t hat may damage the three way catalyst (misfire).
SELF-DIAGNOSTIC RESULTS MODE
Description
This function allows to indicate DTCs or 1st trip DTCs stored in ECM according to the number of times MIL is
blinking.
How to Set Self-diagnostic Results Mode
NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a mal- function.
• After ignition switch is turned off, ECM is a lways released from the “self-diagnostic results” mode.
1. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quick ly five times within 5 seconds.
• Fully depress the accelerator pedal.
• Fully release the accelerator pedal.
JMBIA1515GB
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EC-600
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
3. Wait 7 seconds, fully depress the accelerator pedal and keep it depressed for approx. 10 seconds until the
MIL starts blinking.
NOTE:
Do not release the accelerator pedal for 10 seconds if MIL starts blinking during this period. This blinking
is displaying SRT status and is continued for another 10 seconds.
4. Fully release the accelerator pedal. ECM has entered to “Self-diagnostic results” mode.
NOTE:
Wait until the same DTC (or 1st trip DTC) appears to completely confirm all DTCs.
How to Read Self-diagnostic Results
The DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MIL does not illuminate in diagnostic test
mode I (Malfunction warning), all displayed items are 1s t trip DTCs. If only one code is displayed when the MIL
illuminates in “malfunction warning” mode, it is a DTC; if two or more codes are displayed, they may be either
DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified codes can be identified by
using the CONSULT or GST. A DTC will be used as an example for how to read a code.
A particular trouble code can be identified by the number of four-digit numeral flashes per the following.
PBIB0092E
PBIB3005E
Number 0123456789ABCDEF
Flashes 10123456789111213141516
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DIAGNOSIS SYSTEM (ECM)EC-601
< SYSTEM DESCRIPTION > [VQ35DE]
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The length of time the 1,000th-digit numeral flashes on
and off is 1.2 seconds consisting of an ON (0.6-sec-
onds) - OFF (0.6-seconds) cycle.
The 100th-digit numeral and lower digit numerals consis t of a 0.3-seconds ON and 0.3-seconds OFF cycle.
A change from one digit numeral to another occurs at an inte rval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-seconds OFF.
In this way, all the detected malfunctions are classi fied by their DTC numbers. The DTC 0000 refers to no mal-
function. Refer to EC-630, "DTC Index"
.
How to Erase Self-diagnostic Results
By performing this procedure, ECM memory is erased and the following diagnostic information is erased as
well.
• Diagnostic trouble codes
• 1st trip diagnostic trouble codes
• Freeze frame data
• 1st trip freeze frame data
• System readiness test (SRT) codes
• Test values
NOTE:
Also, if a battery terminal is disconnected, ECM memory is erased and the diagnostic information as listed
above is erased. (The amount of time required for eras ing may vary from a few seconds to several hours.)
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Set ECM in “self-diagnostic results” mode.
6. The diagnostic information has been erased from the backup memory in the ECM. Fully depress the accelerator pedal and keep it depressed for more than 10 seconds.
7. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
CONSULT FunctionINFOID:0000000009462541
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
• Diagnostic trouble codes
• 1st trip diagnostic trouble codes
• Freeze frame data
• 1st trip freeze frame data
• System readiness test (SRT) codes
• Test values
SELF DIAGNOSTIC RESULT MODE
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to EC-630, "DTC Index".
How to Read DTC and 1st Trip DTC
Diagnostic test mode Function
Self Diagnostic Result Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.
*
Data Monitor Input/Output data in the ECM can be read.
Work support This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on the CONSULT unit.
Active Test Diagnostic Test Mode in which CONSULT drives some actuators apart from the ECMs and also shifts
some parameters in a specified range.
ECU Identification ECM part number can be read.
DTC Work Support The status of system monitoring tests and the self-diagnosis status/results can be confirmed.
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EC-602
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
DTCs and 1st trip DTCs related to the malf
unction are displayed in “self-diag results”.
• When ECM detects a 1st trip DTC, 1t” is displayed for “TIME”.
• When ECM has detected a current DTC, “0” is displayed for “TIME”.
• If “TIME” is neither “0” nor “1t”, the DTC occurred in the past and ECM shows the number of times the vehi-
cle has been driven since the last detection of the DTC.
How to Erase DTC and 1st Trip DTC
NOTE:
• If the ignition switch stays ON after repair work, be su re to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
• If the DTC is not for A/T related items (see EC-630, "DTC Index"
), skip step 1.
1. Select “ENGINE” with CONSULT.
2. Select “SELF-DIAG RESULTS”.
3. Touch “ERASE”. (DTC in ECM will be erased.)
Freeze Frame Data and 1st Trip Freeze Frame Data
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
NOTE:
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica- ble to this vehicle, refer to CONSULT display items.
• For reference values of the following items, refer to EC-613, "Reference Value"
.
Monitored Item
Freeze frame data item* Description
DIAG TROUBLE CODE
[PXXXX] The engine control co
mponent part/control system has a trouble code that is displayed as PXXXX. (Refer
to EC-630, "DTC Index"
.)
FUEL SYS-B1 • “Fuel injection system status” at the moment a malfunction is detected is displayed. • One of the following mode is displayed.Mode2: Open loop due to detected system malfunction
Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment)
Mode4: Closed loop - using oxygen sensor(s) as feedback for fuel control
Mode5: Open loop - has not yet satisfied condition to go to closed loop
FUEL SYS-B2
COMBUST CONDITION These items are displayed but are not applicable to this model.
CAL/LD VALUE [%] The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [ °C] or
[ ° F] The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 [%] • “Long-term fuel trim” at the moment a malfunction is detected is displayed. • The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule than short-term fuel trim.
L-FUEL TRM-B2 [%]
S-FUEL TRM-B1 [%] • “Short-term fuel trim” at the moment a malfunction is detected is displayed. • The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel schedule.
S-FUEL TRM-B2 [%]
ENGINE SPEED [rpm] The engine sp eed at the moment a malfunction is detected is displayed.
VEHICL SPEED
[km/h] or [mph] The vehicle speed at the moment a malfunction is detected is displayed.
INT MANI PRES [kPa] These items are displayed but are not applicable to this model.
ABSOL TH·P/S [%] The throttle valve opening angle at the moment a malfunction is detected is displayed.
B/FUEL SCHDL [msec] The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE [ °C] or
[ ° F] The intake air temperature at the moment a malfunction is detected is displayed.
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EC-604
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
EVAP SYS PRES VThe signal voltage of EVAP control
system pressure sensor is dis-
played.
FUEL LEVEL SE V ×The signal voltage of the fuel level
sensor is displayed.
START SIGNAL On/Off Indicates start signal status [On/Off]
computed by the ECM according to
the signals of engine speed and bat-
tery voltage. After starting the engine, [Off] is dis-
played regardless of the starter sig-
nal.
CLSD THL POS On/Off ××Indicates idle position [On/Off] com-
puted by ECM according to the ac-
celerator pedal position sensor
signal.
AIR COND SIG On/Off ××Indicates [On/Off] condition of the air
conditioner switch as determined by
the air conditioner signal.
PW/ST SIGNAL On/Off ××[On/Off] condition of the power
steering system (determined by the
signal voltage of the power steering
pressure sensor) is indicated.
LOAD SIGNAL On/Off ××Indicates [On/Off] condition from the
electrical load signal.
• On: Rear window defogger switch
is ON and/or lighting switch is in
2nd position.
• Off: Both rear window defogger
switch and lighting switch are
OFF.
IGNITION SW On/Off ××Indicates [On/Off] condition from ig-
nition switch signal.
HEATER FAN SW On/Off ×Indicates [On/Off] condition from the
heater fan switch signal.
BRAKE SW On/Off Indicates [On/Off] condition from the
stop lamp switch signal.
INJ PULSE-B1 msec Indicates the actual fuel injection
pulse width compensated by ECM
according to the input signals. When the engine is stopped, a cer-
tain computed value is indicated.
INJ PULSE-B2
IGN TIMING BTDC ×Indicates the ignition timing comput-
ed by ECM according to the input
signals. When the engine is stopped, a cer-
tain value is indicated.
CAL/LD VALUE % “Calculated load value” indicates the
value of the current air flow divided
by peak air flow.
MASS AIRFLOW g/s Indicates the mass air flow comput-
ed by ECM according to the signal
voltage of the mass air flow sensor.
PURG VOL C/V % • Indicates the EVAP canister purge
volume control solenoid valve
control value computed by the
ECM according to the input sig-
nals.
• The opening becomes larger as the value increases.
Monitored item Unit
Monitor Item Selec-
tion
Description Remarks
ECU IN-
PUT SIG- NALS MAIN-
SIG-
NALS
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EC-612
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
SRT & P-DTC MODE
SRT STATUS Mode
• For items whose SRT codes are set, “CMPLT” is
displayed on the CONSULT screen; for items whose SRT
codes are not set, “INCMP” is displayed.
• “SRT STATUS” provides the presence or absenc e of permanent DTCs stored in ECM memory.
PERMANENT DTC STATUS Mode
How to display permanent DTC status
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Select “PERMANENT DTC ST ATUS” in “DTC & SRT CONFIRMATION” mode with CONSULT.
NOTE:
Permanent DTCs stored in ECM memory are display ed on the CONSULT screen to show if a driving pat-
tern required for erasing permanent DTCs is complete (CMPLT) or incomplete (INCMP).
CAUTION:
Since the “PERMANENT DTC STATUS” screen displ ays the previous trip information, repeat the
following twice to update the in formation: “Ignition switch OFF” , “Wait for more than 10 seconds”
and “Ignition switch ON”.
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
PERMANENT DTC WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to comp lete the driving pattern that is required for erasing
permanent DTC.
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.
HO2S2HO2S2(B1) P1146 P0138
EC-768
HO2S2(B1) P1147 P0137EC-763
HO2S2(B1) P0139 P0139EC-775
HO2S2(B2) P1166 P0158EC-768
HO2S2(B2) P1167 P0157EC-763
HO2S2(B2) P0159 P0159EC-775
Test mode Test item Corresponding DTC No. Reference page
JSBIA0062GB
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EC-614
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
TP SEN 1-B1• Ignition switch: ON
(Engine stopped)
• Selector lever: D position Accelerator pedal: Fully re
leased More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
TP SEN 2-B1*
1• Ignition switch: ON (Engine stopped)
• Selector lever: D position Accelerator pedal: Fully re
leased More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
FUEL T/TMP SE Ignition switch: ON Indicates fuel tank tempera-
ture
EVAP SYS PRES Ignition switch: ON Approx. 1.8 - 4.8 V
FUEL LEVEL SE Ignition switch: ON Depending on fuel level of
fuel tank
START SIGNAL Ignition switch: ON → START → ON Off → On → Off
CLSD THL POS Ignition switch: ON
(Engine stopped) Accelerator pedal:
Fully released On
Accelerator pedal: Slightly depressed Off
AIR COND SIG Engine: After warming up, idle the
engine Air conditioner switch: OFF Off
Air conditioner switch: ON
(Compressor operates.) On
PW/ST SIGNAL Engine: After warming up, idle the
engine Steering wheel: Not being turned Off
Steering wheel: Being turned On
LOAD SIGNAL Ignition switch: ON Rear window defogger switch: ON
and/or
Lighting switch: 2nd position On
Rear window defogger switch and lighting
switch: OFF Off
IGNITION SW Ignition switch: ON → OFF → ON On → Off → On
HEATER FAN SW Engine: After warming up, idle the
engine Heater fan switch: ON On
Heater fan switch: OFF Off
BRAKE SW Ignition switch: ON Brake pedal: Fully released Off
Brake pedal: Slightly depressed On
INJ PULSE-B1 • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
INJ PULSE-B2 • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 7 - 17
°BTDC
2,000 rpm 25 - 45 °BTDC
CAL/LD VALUE • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 5 - 35%
2,500 rpm 5 - 35%
MASS AIRFLOW • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 2.0 - 6.0 g/s
2,500 rpm 7.0 - 20.0 g/s
PURG VOL C/V • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal: Not depressed even
slightly, after engine starting.) 0%
2,000 rpm —
Monitor Item Condition Values/Status
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ECM
EC-615
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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INT/V TIM (B1)
• Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle
−5 - 5 °CA
2,000 rpm Approx. 0 - 30 °CA
INT/V TIM (B2) • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle
−5 - 5 °CA
2,000 rpm Approx. 0 - 30 °CA
INT/V SOL(B1) • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 0 - 2%
2,000 rpm Approx. 0 - 50%
INT/V SOL(B2) • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 0 - 2%
2,000 rpm Approx. 0 - 50%
VIAS S/V-1 • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load When revving engine up to 5,000 rpm
quickly Off
→On → Off
VIAS S/V-2 • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load When revving engine up to 5,000 rpm
quickly Off
→On → Off
AIR COND RLY Engine: After warming up, idle the
engine Air conditioner switch: OFF Off
Air conditioner switch: ON
(Compressor operates) On
ENGINE MOUNT Engine: After warming up Below 950 rpm IDLE
Above 950 rpm TRVL
FUEL PUMP RLY • For 1 second after turning ignition switch: ON
• Engine running or cranking On
Except above Off
VENT CONT/V Ignition switch: ON Off
THRTL RELAY Ignition switch: ON On
A/F S1 HTR(B1) Engine: After warming up, idle the engine
(More than 140 seconds after starting engine) 4 - 100%
A/F S1 HTR(B2) Engine: After warming up, idle the engine
(More than 140 seconds after starting engine) 4 - 100%
COOLING FAN • Engine: After warming up, idle the
engine
• Air conditioner switch: OFF Engine coolant temperature: 97
°C
(206 °F) or less OFF
Engine coolant temperature: Between
98 °C (208
°F) and 99 °C (210 °F) LOW
Engine coolant temperature: Between
100 °C (212 °F) and 104 °C (219 °F) MID
Engine coolant temperature: 105 °C
(221 °F) or more HI
HO2S2 HTR (B1) Engine speed: Below 3,600 rpm after the following conditions are met.
• Engine: After warming up
• Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at idle for 1 minute under no load On
Engine speed: Above 3,600 rpm Off
Monitor Item Condition Values/Status
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ECM
EC-619
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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(SB) 128
(GR) A/F sensor 1 heater (bank 2) Output [Engine is running]
• Warm-up condition
• Idle speed (More than 140 seconds after
starting engine) 2.9 - 8.8 V
4
(LG) 107
(P) Engine oil pressure sensor Input [Engine is running]
• Warm-up condition
• Idle speed 1.3 V
[Engine is running]
• Warm-up condition
• Engine speed is 2,000 rpm 2.7 V
5
(P) 128
(GR) Throttle control motor (Open) Output [Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully de-
pressed 0 - 14 V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully re- leased 0 - 14 V
6
(BR) 128
(GR) A/F sensor 1 heater
(bank 1) Output[Engine is running]
• Warm-up condition
• Idle speed
(More than 140 seconds after
starting engine) 2.9 - 8.8 V
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0030GB
JPBIA3359ZZ
JPBIA3360ZZ
JMBIA0031GB
JMBIA0032GB
JMBIA0902GB
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