engine NISSAN TIIDA 2007 Service Repair Manual

EC-988
< COMPONENT DIAGNOSIS >[MR18DE]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
DescriptionINFOID:0000000001161987
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Component Function CheckINFOID:0000000001161988
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-988, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161989
1.CHECK GROUND CONNECTION
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
PBIB2657E
(+) (–)
Voltage
Connector Terminal Connector Terminal
F1141
(Refrigerant pressure sensor signal)F11 48 1.0 - 4.0V
Refrigerant pressure sensor
Ground Voltage
Connector Terminal
E17 3 Ground Approx. 5V

EC-990
< ECU DIAGNOSIS >[MR18DE]
ECM
ECU DIAGNOSIS
ECM
Reference ValueINFOID:0000000001611216
VALUES ON THE DIAGNOSIS TOOL
Remarks:
● Specification data are reference values.
● 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 TIMING 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-782, "
Diagnosis Procedure".
B/FUEL SCHDL See EC-782, "
Diagnosis Procedure".
A/F ALPHA-B1 See EC-782, "
Diagnosis Procedure".
COOLAN TEMP/S  Engine: After warming up More than 70°C (158°F)
HO2S1 (B1)  Engine: After warming up Maintaining engine speed at 2,000 rpm0 - 0.3V ←→ Approx. 0.6 -
1.0V
HO2S2 (B1) Revving engine from idle up 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 - 0.3V ←→ Approx. 0.6 -
1.0V
HO2S2 MNTR (B1)  Engine: After warming up Maintaining engine speed at 2,000 rpmLEAN ←→→RICH
Change more than 5 times
during 10 seconds.
HO2S2 MNTR (B1) Revving engine from idle up 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 - 14V
ACCEL SEN 1 Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.6 - 0.9V
Accelerator pedal: Fully depressed 4.0 - 4.8V
ACCEL SEN 2* Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.6 - 0.9V
Accelerator pedal: Fully depressed 3.9 - 4.8V
THRL SEN 1-B1 Ignition switch: ON
(Engine stopped)
Shift lever: 1stAccelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
THRL SEN 2-B1* Ignition switch: ON
(Engine stopped)
Shift lever:1stAccelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
INT/A TEMP SE  Ignition switch: ONIndicates intake air tempera-
ture
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

ECM
EC-991
< ECU DIAGNOSIS >[MR18DE]
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AIR COND SIG Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)ON
P/N POSI SW  Ignition switch: ONShift lever: Neutral ON
Selector lever: Except above OFF
PW/ST SIGNAL Engine: After warming up, idle the
engineSteering wheel: Not being turned OFF
Steering wheel: Being turned ON
LOAD SIGNAL  Ignition switch: ONRear window defogger switch: ON
and/or Lighting switch: 2nd positionON
Rear window defogger switch and lighting
switch: OFFOFF
IGNITION SW  Ignition switch: ON → OFF → ON ON → OFF → ON
HEATER FAN SW Engine: After warming up, idle the
engineHeater fan switch: ON ON
Heater fan switch: OFF OFF
BRAKE SW  Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
INJ PULSE-B1 Engine: After warming up
 Shift lever:Neutral
 Air conditioner switch: OFF
No loadIdle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING Engine: After warming up
 Shift lever:Neutral
 Air conditioner switch: OFF
No loadIdle 10° - 20° BTDC
2,000 rpm 25° - 45° BTDC
PURG VOL C/V Engine: After warming up
 Shift lever:Neutral
 Air conditioner switch: OFF
No loadIdle 0%
2,000 rpm 20% - 90%
INT/V TIM (B1) Engine: After warming up
 Shift lever:Neutral
 Air conditioner switch: OFF
No loadIdle−5° - 5°CA
2,000 rpm Approx. 0° - 20°CA
INT/V SOL (B1) Engine: After warming up
 Shift lever:Neutral
 Air conditioner switch: OFF
No loadIdle 0%
2,000 rpm Approx. 0% - 60%
AIR COND RLY Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates)ON
FUEL PUMP RLY For 1 seconds after turning ignition switch: ON
 Engine running or crankingON
 Except above OFF
THRTL RELAY  Ignition switch: ON ON
COOLING FAN Engine: After warming up, idle the
engine
 Air conditioner switch: OFFEngine coolant temperature is 97 °C
(207°F) or less.OFF
Engine coolant temperature is between
98°C (208°F) and 99°C (210°F)LOW
Engine coolant temperature is 100°C
(212°F) or moreHIGH
HO2S1 HTR (B1) Engine: After warming up
 Engine speed: Above 3,600 rpmON
Engine speed: Above 3,600 rpm OFF Monitor Item Condition Values/Status

EC-992
< ECU DIAGNOSIS >[MR18DE]
ECM
*: 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.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 loadON
 Engine speed: Above 3,600 rpm OFF
VEHICLE SPEED Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.Almost the same speed as
the speedometer indication
IDL A/V LEARN  Engine: runningIdle air volume learning has not been per-
formed yet.YET
Idle air volume learning has already been
performed successfully.CMPLT
O2SEN HTR DTY Engine coolant temperature when engine started: More than 80°C (176°F)
 Engine speed: below 3,600 rpmApprox. 30%
AC PRESS SEN Engine: Idle
 Both A/C switch and blower fan switch: ON (Compressor operates)1.0 - 4.0V
VHCL SPEED SE Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.Almost the same speed as
the speedometer indication
SET VHCL SPD  Engine: Running ASCD: OperatingThe preset vehicle speed is
displayed
MAIN SW  Ignition switch: ONMAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW  Ignition switch: ONCANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW  Ignition switch: ONRESUME/ACCELERATE switch:
PressedON
RESUME/ACCELERATE switch: Re-
leasedOFF
SET SW  Ignition switch: ONSET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1
(ASCD brake switch) Ignition switch: ONBrake pedal and clutch pedal: Fully re-
leasedON
Brake pedal and/or clutch pedal: Slightly
depressedOFF
BRAKE SW2
(Stop lamp switch) Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
VHCL SPD CUT  Ignition switch: ON NON
LO SPEED CUT  Ignition switch: ON NON
AT OD MONITOR  Ignition switch: ON OFF
AT OD CANCEL  Ignition switch: ON OFF
CRUISE LAMP  Ignition switch: ONMAIN switch: Pressed at the 1st time →
at the 2nd timeON → OFF
SET LAMP MAIN switch: ON
 When vehicle speed: Between 40
km/h (25 MPH) and 180 km/h
(112 MPH)ASCD: Operating ON
ASCD: Not operating OFF Monitor Item Condition Values/Status

ECM
EC-993
< ECU DIAGNOSIS >[MR18DE]
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TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
 ECM is located in the engine room left side near battery.
- Use extreme care not to 2 pins at one time.
- Data is for comparison and may not be exact.
 Specification data are reference values and are measured between each terminal and ground.
 Pulse signal is measured by CONSULT-III.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
PBIA9221J
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
1
(L)108
(B)Throttle control motor
(Open)Output[Ignition switch: ON]
 Engine stopped
 Shift lever: 1st
 Accelerator pedal: Fully depressed3.2V
2
(SB)108
(B)Throttle control motor re-
lay power supplyInput [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
3
(G)56
(B)Heated oxygen sensor 1
heaterOutput[Engine is running]
 Warm-up condition
 Engine speed: Below 3,600 rpm2.9 - 8.8V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: below 3,600 rpmBATTERY VOLTAGE
(11-14V)
4
(P)108
(B)Throttle control motor
(Close)Output[Ignition switch: ON]
 Engine stopped
 Shift lever:1st
 Accelerator pedal: Fully released1.8V
JMBIA0324GB
JMBIA0325GB
JMBIA0326GB

EC-994
< ECU DIAGNOSIS >[MR18DE]
ECM
5
(G)59
(O)Heated oxygen sensor 2
heaterOutput[Engine is running]
 Engine speed: Below 3,600 rpm af-
ter 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
load10V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
9
(P)108
(B)EVAP canister purge vol-
ume control solenoid
valveOutput[Engine is running]
 Idle speed
 Accelerator pedal: Not depressed
even slightly, after engine startingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
 Engine speed: About 2,000 rpm
(More than 100 seconds after start-
ing engine.)10V
10
(B)
11
(B)— ECM ground — — —
15
(Y)108
(B)Throttle control motor re-
layOutput[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON] 0 - 1.0V
17
(R)
108
(B)Ignition signal No. 1
Output[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle0 - 0.3V
18
(LG)Ignition signal No. 2
21
(G)Ignition signal No. 4
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm0.2 - 0.5V
22
(SB)Ignition signal No. 3 Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
JMBIA0325GB
JMBIA0327GB
JMBIA0328GB
JMBIA0329GB
JMBIA0330GB

ECM
EC-995
< ECU DIAGNOSIS >[MR18DE]
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(GR)108
(B)Fuel pump relay Output[Ignition switch: ON]
 For 1 second after turning ignition
switch ON
[Engine is running]0 - 1.0V
25
(V)
108
(B)Fuel injector No. 4
Output[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idleBATTERY VOLTAGE
(11 - 14V)
29
(Y)Fuel injector No. 3
30
(O)Fuel injector No. 2
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
31
(L)Fuel injector No. 1
32
(P)108
(B)ECM relay
(Self shut-off)Output[Engine is running]
[Ignition switch: OFF]
 A few seconds after turning ignition
switch OFF0 - 1.0V
[Ignition switch: OFF]
 More than a few seconds after turn-
ing ignition switch OFFBATTERY VOLTAGE
(11 - 14V)
33
(LG)36
(Y)Throttle position sensor 1 Input[Ignition switch: ON]
 Engine stopped
 Shift lever: 1st
 Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]
 Engine stopped
Shift lever:1st
 Accelerator pedal: Fully depressedLess than 4.75V
34
(O)36
(Y)Throttle position sensor 2 Input[Ignition switch: ON]
 Engine stopped
Shift lever:1st
 Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]
 Engine stopped
Shift lever:1st
 Accelerator pedal: Fully depressedMore than 0.36V
36
(Y)—Sensor ground
(Throttle position sensor)—— —
37
(W)40
—Knock sensor Input[Engine is running]
 Idle speed2.5V
38
(P)44
(B)Engine coolant tempera-
ture sensorInput [Engine is running]0 - 4.8V
Output voltage varies with engine
coolant temperature.
40
(B)—Sensor ground
(Knock sensor)—— — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
JMBIA0331GB
JMBIA0332GB

E C -996
< ECU DIAGNOSIS >[MR18DE]
ECM
41
(GR)48
(BR)Refrigerant pressure sen-
sorInput[Engine is running]
 Warm-up condition
 Both A/C switch and blower fan mo-
tor switch: ON (Compressor oper-
ates)1.0 - 4.0V
44
(B)—Sensor ground
(Engine coolant tempera-
ture sensor)—— —
45
(G)52
(LG)Mass air flow sensor Input[Ignition switch: ON]
 Engine stopped0.4V
[Engine is running]
 Warm-up condition
 Idle speed0.9 - 1.2V
[Engine is running]
 Warm-up condition
 Engine is revving from idle to about
4,000 rpm0.9 - 1.2 to 2.4V (Check for linear
voltage rise in response to en-
gine being increased to about
4,000 rpm.)
46
(V)55
(O)Intake air temperature
sensorInput [Engine is running]0 - 4.8V
Output voltage varies with intake
air temperature.
48
(BR)—Sensor ground
(Refrigerant pressure
sensor)—— —
49
(W)56
(B)Heated oxygen sensor 1 Input[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm0 - 1.0V
50
(W)59
(O)Heated oxygen sensor 2 Input[Engine is running]
 Revving engine from idle to 3,000
rpm quickly after the following condi-
tions 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
load0 - 1.0V
52
(LG)—Sensor ground
(Mass air flow sensor)—— —
55
(O)—Sensor ground
(Intake air temperature
sensor)—— —
56
(B)—Sensor ground
(Heated oxygen sensor 1)—— —
59
(O)—Sensor ground
(Heated oxygen sensor 2)—— — Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output

ECM
EC-997
< ECU DIAGNOSIS >[MR18DE]
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(W)62
(R)Crankshaft position sen-
sor (POS)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle4.0V
[Engine is running]
 Engine speed: 2,000 rpm4.0V
62
(R)—Sensor ground
[Crankshaft position sen-
sor (POS)]—— —
63
(L)—Sensor ground
[Camshaft position sen-
sor (PHASE)]—— —
65
(G)63
(BR)Camshaft position sensor
(PHASE)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle1.0 - 2.0
[Engine is running]
 Engine speed is 2,000 rpm1.0 - 2.0
69
(L)108
(B)PNP switch Input[Ignition switch: ON]
 Shift lever: NeutralBATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
 Shift lever: Except above0V
72
(V)36
(Y)Sensor power supply
(Throttle position sensor)— [Ignition switch: ON] 5V Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
OutputJMBIA0333GB
JMBIA0334GB
JMBIA0335GB
JMBIA0336GB

EC-998
< ECU DIAGNOSIS >[MR18DE]
ECM
73
(P)108
(B)Intake valve timing control
solenoid valveOutput[Engine is running]
 Warm-up condition
 Idle speed0V
[Engine is running]
 Warm-up condition
 When revving engine up to
2,000rpm Quickly7 - 10V
74
(W)108
(B)Sensor power supply
(Refrigerant pressure
sensor)Input [Ignition switch: ON] 5V
75
(BR)62
(R)Sensor power supply
[Crankshaft position sen-
sor (POS)]— [Ignition switch: ON] 5V
78
(O)63
(BR)Sensor power supply
[Camshaft position sen-
sor (PHASE)]— [Ignition switch: ON] 5V
83
(P)108
(B)CAN communication lineInput/
Output——
84
(L)108
(B)CAN communication lineInput/
Output——
88
(LG)108
(B)Data link connectorInput/
Output[Ignition switch: ON]
 CONSULT-III or GST: Disconnected10.5V
93
(O)108
(B)Ignition switch Input[Ignition switch: OFF] 0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
94
(R)95
(B)ASCD steering switch Input[Ignition switch: ON]
 ASCD steering switch: OFF4V
[Ignition switch: ON]
 MAIN switch: Pressed0V
[Ignition switch: ON]
 CANCEL switch: Pressed1V
[Ignition switch: ON]
 RESUME/ACCELERATE switch:
Pressed3V
[Ignition switch: ON]
 SET/COAST switch: Pressed2V
95
(B)—Sensor ground
(ASCD steering switch)—— —
99
(R)
108
(B)Stop lamp switch Input[Ignition switch: OFF]
 Brake pedal: Fully released0V
[Ignition switch: OFF]
 Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
100
(G)108
(B)ASCD brake switch Input[Ignition switch: ON]
 Brake pedal and clutch pedal:
Slightly depressed0V
[Ignition switch: ON]
 Brake pedal and/or clutch pedal:
Fully releasedBATTERY VOLTAGE
(11 - 14V) Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
PBIA4937J