relay NISSAN TEANA 2014 Owners Manual

SYSTEMEC-577
< SYSTEM DESCRIPTION > [VQ35DE]
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Cooling Fan Operation
Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
ELECTRONIC CONTROLLED ENGINE MOUNT
ELECTRONIC CONTROLLED ENGINE
MOUNT : System DescriptionINFOID:0000000009462520
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
JMBIA0179GB
Cooling fan speed Cooling fan relay
123
Stop (OFF) OFF OFF OFF
Low (LOW) ON OFF OFF
Middle (MID) OFF ON OFF
High (HI) OFF ON ON
JMBIA1827GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS SYSTEM (ECM)EC-605
< SYSTEM DESCRIPTION > [VQ35DE]
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INT/V TIM (B1)
°CA Indicates [
°CA] of intake camshaft
advance angle.
INT/V TIM (B2)
INT/V SOL(B1)
% • The control value of the intake
valve timing control solenoid valve
(determined by ECM according to
the input signals) is indicated.
• The advance angle becomes larg-
er as the value increases.
INT/V SOL(B2)
VIAS S/V-1 On/Off The control condition of the VIAS
control solenoid valve 1 (determined
by ECM according to the input sig-
nals) is indicated.
• On: VIAS control solenoid valve 1 is operating.
• Off: VIAS control solenoid valve 1 is not operating.
VIAS S/V-2 On/Off The control condition of the VIAS
control solenoid valve 2 (determined
by ECM according to the input sig-
nals) is indicated.
• On: VIAS control solenoid valve 2
is operating.
• Off: VIAS control solenoid valve 2 is not operating.
AIR COND RLY On/Off The air conditioner
relay control con-
dition (determined by ECM accord-
ing to the input signals) is indicated.
ENGINE MOUNT IDLE/
TRVL The control condition of the electron-
ic controlled engine mount (deter-
mined by ECM according to the
input signals) is indicated.
• IDLE: Engine speed is below 950
rpm
• TRVL: Engine speed is above 950 rpm
FUEL PUMP RLY On/Off Indicates the fuel pump relay control
condition determined by ECM ac-
cording to the input signals.
VENT CONT/V On/Off The control condition of the EVAP
canister vent control valve (deter-
mined by ECM according to the in-
put signals) is indicated.
• On: Closed
• Off: Open
THRTL RELAY On/Off Indicates the throttle control motor
relay control condition determined
by the ECM according to the input
signals.
A/F S1 HTR(B1)
% • Air fuel ratio (A/F) sensor 1 heater
control value computed by ECM
according to the input signals.
• The current flow to the heater be-
comes larger as the value increas-
es.
A/F S1 HTR(B2) Monitored item Unit
Monitor Item Selec-
tion
Description Remarks
ECU IN-
PUT SIG- NALS MAIN-
SIG-
NALS
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS SYSTEM (ECM)EC-611
< SYSTEM DESCRIPTION > [VQ35DE]
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*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
Test Item
FUEL PUMP RE-
LAY • Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON” and “OFF” using CONSULT and
listen to operating sound. Fuel pump relay makes the operat-
ing sound. • Harness and connectors
• Fuel pump relay
VIAS S/V-1 • Ignition switch: ON
• Turn solenoid valve “ON” and “OFF” using CONSULT and listen
to operating sound. Solenoid valve makes the operating
sound. • Harness and connectors
• Solenoid valve
ENGINE
MOUNTING • Ignition switch: ON
• Turn electronic controlled engine mount “IDLE” and “TRVL” with
CONSULT. Electronic controlled engine mount
makes the operating sound. • Harness and connectors
• Electronic controlled engine mount
VIAS S/V-2 • Ignition switch: ON
• Turn solenoid valve “ON” and “OFF” using CONSULT and listen
to operating sound. Solenoid valve makes the operating
sound. • Harness and connectors
• Solenoid valve
IGNITION TIM-
ING • Engine: Return to the original
non-standard condition
• Timing light: Set
• Retard the ignition timing using
CONSULT. If malfunctioning symptom disap-
pears, see CHECK ITEM. Perform Idle Air Volume Learning.
POWER BAL-
ANCE • Engine: After warming up, idle the
engine.
• A/C switch OFF
• Selector lever: P or N position
• Cut off each injector signal one at a time using CONSULT. Engine runs rough or stops. • Harness and connectors
• Compression
• Fuel injector
• Power transistor
•Spark plug
• Ignition coil
VENT CON-
TROL/V • Ignition switch: ON (Engine
stopped)
• Turn solenoid valve “ON” and “OFF” with the CONSULT and lis-
ten to operating sound. Solenoid valve makes an operating
sound. • Harness and connectors
• Solenoid valve
V/T ASSIGN AN-
GLE • Engine: Return to the original
non-standard condition
• Change intake valve timing using
CONSULT. If malfunctioning symptom disap-
pears, see CHECK ITEM. • Harness and connectors
• Intake valve timing control sole- noid valve
COOLING FAN* • Ignition switch: ON
• Turn the cooling fan “HI”, “MID”, “LOW” and “OFF” using CON-
SULT. Cooling fan moves and stops.
• Harness and connectors
• Cooling fan motor
•IPDM E/R
TEST ITEM CONDITION JUDGMENT CHECK ITEM (REMEDY)
Test mode Test item Corresponding DTC No. Reference page
A/F SEN1 A/F SEN1(B1) P1276 P0130
EC-753
A/F SEN1(B2) P1286 P0150EC-753
EVAPORATIVE SYSTEMPURG FLOW P0441 P0441
EC-828PURG VOL CN/V P1444 P0443EC-833
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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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EC-620
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
9
(LG)
128
(GR) Ignition signal No. 3
Output[Engine is running]
• Warm-up condition
• Idle speed NOTE:
The pulse cycle changes de-
pending on rpm at idle 0 - 0.2 V
10
(LG) Ignition signal No. 2
11
(LG) Ignition signal No. 1
13
(LG) Ignition signal No. 6
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 0.1 - 0.4 V
14
(LG) Ignition signal No. 5
15
(LG) Ignition signal No. 4
12
(B) — ECM ground — — —
16
(B) — ECM ground — — —
19
(B) —Sensor ground
(Throttle position sensor) —— —
22
(W) 128
(GR) Throttle position sensor 1 Input [Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully re- leased More than 0.36 V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully de- pressed Less than 4.75 V
23
(R) 128
(GR) Throttle position sensor 2 Input [Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully re-
leased Less than 4.75 V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully de- pressed More than 0.36 V
24
(G) 19
(B) Sensor power supply
(Throttle position sensor) — [Ignition switch: ON] 5 V
26
(SB) 128
(GR) Power supply for ECM (Back-
up) Input [Ignition switch: OFF] BATTERY VOLTAGE
(11 - 14 V)
31
(Y) 128
(GR) ECM relay
(Self shut-off) Output• [Engine is running]
• [Ignition switch: OFF] A few seconds after turning
ignition switch OFF 0 - 1.5 V
[Ignition switch: OFF]
More than a few seconds after
turning ignition switch OFF BATTERY VOLTAGE
(11 - 14 V)
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0035GB
JMBIA0036GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ECM
EC-621
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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(Y)
128
(GR) Fuel injector No. 1
Output[Engine is running]
• Warm-up condition
• Idle speed NOTE:
The pulse cycle changes de-
pending on rpm at idle BATTERY VOLTAGE
(11 - 14 V)
44
(Y) Fuel injector No. 2
45
(Y) Fuel injector No. 6
46
(Y) Fuel injector No. 5
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm BATTERY VOLTAGE
(11 - 14 V)
47
(V) Fuel injector No. 4
48
(Y) Fuel injector No. 3
34
(L) 128
(GR) 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
37
(SB) 128
(GR) Heated oxygen sensor 2 heat-
er (bank 1) Output[Engine is running]
Engine speed: Below 3,600 rpm
after the following 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 load 10 V
• [Ignition switch: ON] Engine stopped
• [Engine is running] Engine speed: Above 3,600
rpm BATTERY VOLTAGE
(11 - 14 V)
38
(V) 128
(GR) Electronic controlled engine
mount control solenoid valve Output[Engine is running]
Idle speed 0 - 1.0 V
[Engine is running]
Engine speed: More than 950
rpm BATTERY VOLTAGE
(11 - 14 V)
39
(BR) 128
(GR) VIAS control solenoid valve 1 Output [Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• When revving engine up to 5,000 rpm quickly BATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V ↓
BATTERY VOLTAGE (11 - 14 V)
40
(V) 128
(GR) VIAS control solenoid valve 2 Output [Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• When revving engine up to
5,000 rpm quickly BATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V ↓
BATTERY VOLTAGE (11 - 14 V)
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0047GB
JMBIA0048GB
JMBIA0902GB
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EC-622
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
41
(LG) 128
(GR) Heated oxygen sensor 2 heat-
er (bank 2) Output[Engine is running]
Engine speed: Below 3,600 rpm
after the following 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 load 10 V
• [Ignition switch: ON] Engine stopped
• [Engine is running] Engine speed: Above 3,600
rpm BATTERY VOLTAGE
(11 - 14 V)
42
(BR) 128
(GR) EVAP canister purge volume
control solenoid valve Output[Engine is running]
• Idle speed
• Accelerator pedal: Not de- pressed even slightly, after
engine starting BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
Engine speed: approximately
2,000 rpm (More than 100 sec-
onds after starting engine) BATTERY VOLTAGE
(11 - 14 V)
43
(V) 128
(GR) Fuel pump relay Output • [Ignition switch: ON]
For 1 second after turning ig-
nition switch ON
• [Engine is running] 0 - 1.0 V
54
(V) 84
(SB) Sensor power supply
[Crankshaft position sensor
(POS)] — [Ignition switch: ON] 5 V
55
(Y) 128
(GR) Intake valve timing control so-
lenoid valve (bank 1) Output[Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 7 - 12 V
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0902GB
JMBIA0039GB
JMBIA0040GB
JMBIA0038GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ECM
EC-629
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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DTC Inspection Priority ChartINFOID:0000000009462544
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
P2100
P2103 Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric th rottle control
function ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P2119 Electric thro ttle control ac-
tuator (When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is being driven, it slows down gradually because of fuel cut. After the
vehicle stops, the engine stalls.
The engine can restart in the N or P position, and engine speed will not exceed 1,000 rpm
or more.
P2122
P2123
P2127
P2128
P2138 Accelerator pedal position
sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
Therefore, the acceleration will be poor.
DTC No. Detected items Engine operating condition in fail-safe mode
Priority Detected items (DTC) Detected items (DTC)
1 U0101, U1001 CAN communication line P0101, P0102, P0103 Mass air flow sensor
P0111, P0112, P0113, P0127 Intake air temperature sensor
P0116, P0117, P0118, P0125 Engine coolant temperature sensor
P0122, P0123, P0222, P0223, P1225, P1226, P2135 Throttle position sensor
P0128 Thermostat function
P0181, P0182, P0183 Fuel tank temperature sensor
P0196, P0197, P0198 Engine oil temperature sensor
P0327, P0328, P0332, P0333 Knock sensor
P0335 Crankshaft position sensor (POS)
P0340, P0345 Camshaft position sensor (PHASE)
P0460, P0461, P0462, P0463 Fuel level sensor
P0500 Vehicle speed sensor
P0520 EOP sensor
P0605, P0607 ECM
P0643 Sensor power supply
P0850 Transmission range switch
P1550, P1551, P1552, P1553, P1554 Battery current sensor
P1556, P1557 Battery temperature sensor
P1610 - P1615 NATS
P2122, P2123, P2127, P2128, P2138 Accelerator pedal position sensor
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-630
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
DTC Index
INFOID:0000000009462545
× :Applicable —: Not applicable
2 P0031, P0032, P0051, P0052 Air fuel ratio (A/F) sensor 1 heater
P0037, P0038, P0057, P0058 Heated oxygen sensor 2 heater
P0075, P0081 Intake valve timing control solenoid valve
P0130, P0131, P0132, P014 C, P014D, P014E, P014F,
P0150, P0151, P0152, P209 6, P2097, P2098, P2099 Air fuel ratio (A/F) sensor 1
P0137, P0138, P0139, P0157, P0158, P0159 Heated oxygen sensor 2
P0441 EVAP control system purge flow monitoring
P0443, P0444, P0445 EVAP canister purge volume control solenoid valve
P0447, P0448 EVAP canister vent control valve
P0451, P0452, P0453 EVAP control system pressure sensor
P0603 ECM power supply
P1217 Engine over temperature (OVERHEAT)
P1800, P1801 VIAS cont rol solenoid valve
P1805 Brake switch
P2100, P2103 Throttle control motor relay
P2101 Electric throttle control function
P2118 Throttle control motor
3 P0011, P0021 Intake valve timing control P0171, P0172, P0174, P0175 Fuel injection system function
P0300 - P0306 Misfire
P0420, P0430 Three way catalyst function
P0456 EVAP control syst em (VERY SMALL LEAK)
P0506, P0507 Idle speed control system
P050A, P050E Cold start control
P0524 Engine oil pressure
P1148, P1168 Closed loop control
P1212 TCS communication line
P1564 ASCD steering switch
P1572 Brake pedal position switch
P1574 ASCD vehicle speed sensor
P2119 Electric throttle control actuator
Priority Detected items (DTC) Detected items (DTC)
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Refer-
ence page
CONSULT
GST
*2ECM*3
U0101 0101*5LOST COMM (ECM) — 1 ×BEC-713
U1001
1001*5CAN COMM CIRCUIT — 2 — — EC-714
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. ——
Blinking*6——
P0011 0011 INT/V TIM CONT-B1 ×2 ×BEC-715
P0021 0021 INT/V TIM CONT-B2 ×2 ×BEC-715
P0031 0031 A/F SEN1 HTR (B1) — 2 ×BEC-719
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-710
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors.
3. Disconnect IPDM E/R harness connector.
4. Check the continuity between ECM harnes s connector and IPDM E/R harness connector.
5. Also check harness for short to ground.
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
6.CHECK ECM POWER SUPPLY (MAIN)-II
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Check the voltage between ECM harness connector terminals as per the following.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 7.
7.CHECK ECM RELAY CONTROL SIGNAL
Check the voltage between ECM harness connector terminals as per the following.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 8.
8.CHECK ECM RELAY CONTROL SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect IPDM E/R harness connector.
4. Check the continuity between ECM harnes s connector and IPDM E/R harness connector.
+−
Continuity
ECM IPDM E/R
Connector Terminal Connector Terminal E32 121 E18 13 Existed
ECM ConditionVo l ta g e
(Approx.)
Connector +
−
Te r m i n a l
E32 121 128 After turning ignition switch
OFF, battery voltage will ex-
ist for a few seconds Drop to 0 V
ECM
ConditionVo l ta g e
(Approx.)
+
−
Connector Terminal Connector Terminal
F78 31 E32 128 Ignition switch ON 0 V
Turn ignition switch OFF
and wait at least 10 sec-
onds. Battery voltage
+
−
Continuity
ECM IPDM E/R
Connector Terminal Connector Terminal F7831F8472Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM