sensor NISSAN TEANA 2008 Service Manual

REFRIGERANT PRESSURE SENSOR
EC-349
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors F123, E6
 IPDM E/R harness connectors E10, E346
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors F123, E6
 IPDM E/R harness connectors E10, E346
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
6.CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors F123, E6
 IPDM E/R harness connectors E10, E346
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
Is the inspection result normal?
Refrigerant pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
E300 3 F8 40 Existed
Refrigerant pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
E300 2 F8 39 Existed

EC-350
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
REFRIGERANT PRESSURE SENSOR
YES >> Replace refrigerant pressure sensor.
NO >> Repair or replace malfunctioning part.

ECM
EC-357
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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ECU DIAGNOSIS
ECM
Reference ValueINFOID:0000000003856868
VALUES ON THE DIAGNOSIS TOOL
Remarks:
l Specification data are reference values.
l Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
I.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show
the specification data in spite of the ignition timing not being adjusted to the specification data. This IGN TIM-
ING monitors the data calculated by the ECM according to the signals input from the camshaft position sensor
and other ignition timing related sensors.
Monitor Item Condition Values/Status
ENG SPEED Run engine and compare CONSULT-III value with the tachometer indication.Almost the same speed as
the tachometer indication.
MAS A/F SE-B1 See EC-124, "
Description".
B/FUEL SCHDL See EC-124, "
Description".
A/F ALPHA-B1 See EC-124, "
Description".
A/F ALPHA-B2 See EC-124, "
Description".
COOLAN TEMP/S  Engine: After warming up More than 70°C (158°F)
A/F SEN1 (B1)  Engine: After warming up Maintaining engine speed at 2,000 rpm Fluctuates around 2.2 V
A/F SEN1 (B2)  Engine: After warming up Maintaining engine speed at 2,000 rpm Fluctuates around 2.2 V
HO2S2 (B1) Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load0 - 0.3 V ←→ Approx. 0.6 -
1.0 V
HO2S2 (B2) Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load0 - 0.3 V ←→ Approx. 0.6 -
1.0 V
HO2S2 MNTR (B1) Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no loadLEAN ←→ RICH
HO2S2 MNTR (B2) Revving engine from idle to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no loadLEAN ←→ RICH
VHCL SPEED SE Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.Almost the same speed as
speedometer indication
BATTERY VOLT  Ignition switch: ON (Engine stopped) 11 - 14 V
ACCEL SEN 1 Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.5 - 1.0 V
Accelerator pedal: Fully depressed 4.2 - 4.8 V
ACCEL SEN 2*
1 Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.5 - 1.0 V
Accelerator pedal: Fully depressed 4.2 - 4.8 V

ECM
EC-361
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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P O*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ
from ECM terminals voltage signal.
*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to PG-3, "
How to Handle Battery".
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
 ECM is located in the engine room left side near battery. For this inspection, remove passenger side instru-
ment lower panel.
 Specification data are reference values.
 Pulse signal is measured by CONSULT-III.
ALT DUTY SIG Power generation voltage variable control: Operating ON
 Power generation voltage variable control: Not operating OFF Monitor Item Condition Values/Status
PBIA9221J
Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
1
(P/B)
11 2
(B)Fuel injector No. 6
Output[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idleBATTERY VOLTAGE
(11 - 14 V)
3
(L/W)Fuel injector No. 5
29
(LG/R)Fuel injector No. 4
30
(R/Y)Fuel injector No. 3
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14 V)
31
(R/W)Fuel injector No. 2
32
(R/B)Fuel injector No. 1
2
(G/W)11 2
(B)Throttle control motor relay
power supplyInput [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14 V)
4
(BR/Y)11 2
(B)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
JMBIA0047GB
JMBIA0048GB
JMBIA0902GB

EC-362
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
5
(L)11 2
(B)Throttle control motor (Open) Output[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully de-
pressed0 - 14 V
[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leased0 - 14 V
6
(P)11 2
(B)Throttle control motor (Close) Output[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leased0 - 14 V
8
(SB)11 2
(B)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
9
(L/B)
11 2
(B)Ignition signal No. 3
Output[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle0 - 0.2 V
10
(G/R)Ignition signal No. 2
11
(Y/R)Ignition signal No. 1
18
(GR/R)Ignition signal No. 6
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm0.1 - 0.4 V
19
(P)Ignition signal No. 5
21
(W)Ignition signal No. 4
12
(B)— ECM ground — — — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
OutputJMBIA0031GB
JMBIA0032GB
JMBIA1125GB
JMBIA0030GB
JMBIA0035GB
JMBIA0036GB

ECM
EC-363
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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(P/B)11 2
(B)Heated oxygen sensor 2 heat-
er (Bank 1)Output[Engine is running]
 Engine speed: Below 3,600
rpm after the following condi-
tions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load10 V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE
(11 - 14 V)
14
(GR)11 2
(B)Fuel pump relay Output[Ignition switch: ON]
 For 1 second after turning ig-
nition switch ON
[Engine is running]0 - 1.5 V
[Ignition switch: ON]
 More than 1 second after turn-
ing ignition switch ONBATTERY VOLTAGE
(11 - 14 V)
15
(O)11 2
(B)Throttle control motor relay Output[Ignition switch: ON → OFF]0 - 1.0 V → BATTERY VOLTAGE
(11 - 14 V) → 0 V
[Ignition switch: ON] 0 - 1.0 V
16
(B/Y)— ECM ground — — —
17
(R)11 2
(B)Heated oxygen sensor 2 heat-
er (Bank 2)Output[Engine is running]
 Engine speed: Below 3,600
rpm after the following condi-
tions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load10 V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE
(11 - 14 V)
24
(W/B)11 2
(B)ECM relay
(Self shut-off)Output[Engine is running]
[Ignition switch: OFF]
 A few seconds after turning
ignition switch OFF0 - 1.5 V
[Ignition switch: OFF]
 More than a few seconds after
turning ignition switch OFFBATTERY VOLTAGE
(11 - 14 V) Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
JMBIA0902GB
JMBIA0902GB

EC-364
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
25
(P/L)11 2
(B)EVAP canister purge volume
control solenoid valveOutput[Engine is running]
 Idle speed
 Accelerator pedal: Not de-
pressed even slightly, after
engine startingBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Engine speed: About 2,000
rpm (More than 100 seconds
after starting engine)BATTERY VOLTAGE
(11 - 14 V)
26
(GR/B)11 2
(B)VIAS control solenoid valve 2 Output[Engine is running]
 Warm-up condition
 Idle speedBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Warm-up condition
 When revving engine up to
5,000 rpm quicklyBATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)
27
(V)11 2
(B)VIAS control solenoid valve 1 Output[Engine is running]
 Warm-up condition
 Idle speedBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Warm-up condition
 When revving engine up to
5,000 rpm quicklyBATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)
28
(BR/W)11 2
(B)Electronic controlled engine
mount control solenoid valveOutput[Engine is running]
 Idle speed0 - 1.0 V
[Engine is running]
 Engine speed: More than 950
rpmBATTERY VOLTAGE
(11 - 14 V)
33
(W)35
(B)Heated oxygen sensor 2
(Bank 1)Input[Engine is running]
 Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load0 - 1.0 V
34
(W/L)35
(B)Heated oxygen sensor 2
(Bank 2)Input[Engine is running]
 Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load0 - 1.0 V Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
JMBIA0039GB
JMBIA0040GB

ECM
EC-365
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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P O35
(B)—Sensor ground
(Heated oxygen sensor 2)—— —
36
(B)—Sensor ground
(Throttle position sensor)—— —
37
(W)36
(B)Throttle position sensor 1 Input[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leasedMore than 0.36 V
[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully de-
pressedLess than 4.75 V
38
(R)36
(B)Throttle position sensor 2 Input[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leasedLess than 4.75 V
[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully de-
pressedMore than 0.36 V
39
(R)40
(G)Refrigerant pressure sensor Input[Engine is running]
 Warm-up condition
 Both A/C switch and blower
fan motor switch: ON (Com-
pressor operates)1.0 - 4.0 V
40
(G)—Sensor ground
(Refrigerant pressure sensor)—— —
41
(O/B)48
(B/P)Power steering pressure sen-
sorInput[Engine is running]
 Steering wheel: Being turned0.5 - 4.5 V
[Engine is running]
 Steering wheel: Not being
turned0.4 - 0.8 V
42
(BR)44
(G/B)Battery current sensor Input[Engine is running]
 Battery: Fully charged*
2
 Idle speed2.6 - 3.5 V
44
(G/B)—Sensor ground
(Battery current sensor)—— —
45
(P)49
(L)A/F sensor 1 (Bank 1) Input [Ignition switch: ON] 2.2 V
46
(Y)52
(B/R)Engine coolant temperature
sensorInput [Engine is running]0 - 4.8 V
Output voltage varies with engine
coolant temperature.
47
(G)36
(B)Sensor power supply
(Throttle position sensor)— [Ignition switch: ON] 5 V
48
(B/P)—Sensor ground
(Power steering pressure
sensor)—— —
49
(L)11 2
(B)A/F sensor 1 (Bank 1) Input[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm1.8 V
Output voltage varies with air fuel
ratio. Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output

EC-366
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
50
(L/Y)56
(G/B)Intake air temperature sensor Input [Engine is running]0 - 4.8 V
Output voltage varies with intake
air temperature.
51
(R/Y)44
(G/B)Sensor power supply
(Battery current sensor)— [Ignition switch: ON] 5 V
52
(B/R)—Sensor ground
(Engine coolant temperature
sensor/Engine oil tempera-
ture sensor)—— —
53
(V)57
(LG)A/F sensor 1 (Bank 2) Input [Ignition switch: ON] 2.2 V
54
(G)52
(B/R)Engine oil temperature sensor Input [Engine is running]0 - 4.8 V
Output voltage varies with engine
oil temperature.
55
(SB)48
(Y)Sensor power supply
(Power steering pressure
sensor)— [Ignition switch: ON] 5 V
56
(G/B)—Sensor ground
(Mass air flow sensor/Intake
air temperature sensor)—— —
57
(LG)11 2
(B)A/F sensor 1 (Bank 2) Input[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm1.8 V
Output voltage varies with air fuel
ratio.
58
(O)56
(G/B)Mass air flow sensor Input[Engine is running]
 Warm-up condition
 Idle speed0.9 - 1.2 V
[Engine is running]
 Warm-up condition
 Engine speed: 2,500 rpm1.6 - 1.9 V
59
(G/W)64
(B/R)Sensor power supply
[Camshaft position sensor
(PHASE) (Bank 1)]— [Ignition switch: ON] 5 V
60
(Y/B)—Sensor ground
[Crankshaft position sensor
(POS)]—— —
61
(B)67
(GR)Knock sensor (Bank 1) Input[Engine is running]
 Idle speed2.5 V*
1
62
(W)67
(GR)Knock sensor (Bank 2) Input[Engine is running]
 Idle speed2.5 V*1
63
(R/W)68
(Y/G)Sensor power supply
[Camshaft position sensor
(PHASE) (Bank 2)]— [Ignition switch: ON] 5 V
64
(B/R)—Sensor ground
[Camshaft position sensor
(PHASE) (Bank 1)]—— — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output

ECM
EC-367
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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(W/B)60
(Y/B)Crankshaft position sensor
(POS)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle4.0 - 5.0 V
[Engine is running]
 Engine speed: 2,000 rpm4.0 - 5.0 V
67
(GR)—Sensor ground
(Knock sensor)—— —
68
(Y/G)—Sensor ground
[Camshaft position sensor
(PHASE) (Bank 2)]—— —
69
(BR/W)68
(Y/G)Camshaft position sensor
(PHASE) (Bank 2)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle3.0 - 5.0 V
[Engine is running]
 Engine speed is 2,000 rpm3.0 - 5.0 V
70
(W/R)64
(B/R)Camshaft position sensor
(PHASE) (Bank 1)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle3.0 - 5.0 V
[Engine is running]
 Engine speed is 2,000 rpm3.0 - 5.0 V Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
OutputJMBIA0041GB
JMBIA0042GB
JMBIA0045GB
JMBIA0046GB
JMBIA0045GB
JMBIA0046GB