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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
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
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-633
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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OP0463 0463 FUEL LEVL SEN/CIRC — 2
×BEC-866
P0500 0500
VEH SPEED SEN/CIRC*8—2×BEC-867
P0506 0506 ISC SYSTEM — 2 ×BEC-869
P0507 0507 ISC SYSTEM — 2 ×BEC-871
P050A 050A COLD START CONTROL — 2 ×AEC-873
P050E 050E COLD START CONTROL — 2 ×AEC-873
P0520 0520 EOP SENSOR/SWITCH — 2 — — EC-875
P0524 0524 ENGINE OIL PRESSURE — 1 — —EC-878
P0603 0603 ECM BACK UP/CIRCUIT — 2×BEC-881
P0605 0605 ECM — 1 or 2 × or — B EC-883
P0607 0607 ECM — 1 ×BEC-884
P0643 0643 SENSOR POWER/CIRC — 1 ×BEC-885
P0850 0850 P-N POS SW/CIRCUIT — 2 ×BEC-887
P1148 1148 CLOSED LOOP-B1 — 1 ×AEC-890
P1168 1168 CLOSED LOOP-B2 — 1 ×AEC-890
P1212 1212 TCS/CIRC — 2 — — EC-891
P1217 1217 ENG OVER TEMP — 1×BEC-892
P1225 1225 CTP LEARNING-B1 — 2 — — EC-895
P1226 1226 CTP LEARNING-B1 — 2 — —EC-896
P1550 1550 BAT CURRENT SENSOR — 2 — —EC-897
P1551 1551 BAT CURRENT SENSOR — 2 — —EC-899
P1552 1552 BAT CURRENT SENSOR — 2 — —EC-899
P1553 1553 BAT CURRENT SENSOR — 2 — —EC-901
P1554 1554 BAT CURRENT SENSOR — 2 — —EC-903
P1556 1556 BAT TMP SEN/CIRC — 2 — —EC-906
P1557 1557 BAT TMP SEN/CIRC — 2 — —EC-906
P1564 1564 ASCD SW — 1 — —EC-908
P1572 1572 ASCD BRAKE SW — 1 — — EC-911
P1574 1574 ASCD VHL SPD SEN — 1 — —EC-918
P1610 1610 LOCK MODE — 2 — —SEC-68
P1611 1611 ID DISCORD, IMM-ECM — 2 — —SEC-69
P1612 1612 CHAIN OF ECM-IMMU — 2 — — SEC-70
P1614 1614 CHAIN OF IMMU-KEY — 2 — —SEC-71
P1800 1800 VIAS S/V-1 — 2 — — EC-920
P1801 1801 VIAS S/V-2 — 2 — —EC-922
P1805 1805 BRAKE SW/CIRCUIT — 2 — —EC-924
P2096 2096 A/F SENSOR1 (B1) — 2×AEC-927
P2097 2097 A/F SENSOR1 (B1) — 2 ×AEC-927
P2098 2098 A/F SENSOR1 (B2) — 2 ×AEC-927
P2099 2099 A/F SENSOR1 (B2) — 2 ×AEC-927
P2100 2100 ETC MOT PWR-B1 — 1 ×BEC-931
P2101 2101 ETC FNCTN/CIRC-B1 — 1 ×BEC-933
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Refer-
ence page
CONSULT
GST
*2ECM*3
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
ECM
EC-639
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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O2 SEN-
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HEATER 41H A/F sensor 1 heater (Bank 1)
Low Input: P0031
High Input: P0032 81H 0BHConverted value of heater electric cur-
rent to voltage
42H Heated oxygen sensor 2 heat-
er (Bank 1) Low Input: P0037
High Input: P0038 80H 0CH
Converted value of heater electric cur-
rent to voltage
43H Heated oxygen sensor 3 heat-
er (Bank 1) P0043 80H 0CHConverted value of heater electric cur-
rent to voltage
45H A/F sensor 1 heater (Bank 2) Low Input: P0051
High Input: P0052 81H 0BHConverted value of heater electric cur-
rent to voltage
46H Heated oxygen sensor 2 heat-
er (Bank 2) Low Input: P0057
High Input: P0058 80H 0CH
Converted value of heater electric cur-
rent to voltage
47H Heated oxygen sensor 3 heat-
er (Bank 2) P0063 80H 0CHConverted value of heater electric cur-
rent to voltage
SEC-
OND-
ARY AIR 71H Secondary air system P0411 80H 01H
Secondary air injection system incor-
rect flow detected
Bank1: P0491
Bank2: P0492 81H 01H
Secondary air injection system insuffi-
cient flow
P2445 82H 01H Secondary air injection system pump
stuck off
P2448 83H 01H Secondary air injection system high
airflow
Bank1: P2440
Bank2: P2442 84H 01H
Secondary air injection system switch-
ing valve stuck open
P2440 85H 01H Secondary air injection system switch-
ing valve stuck open
P2444 86H 01H Secondary air injection system pump
stuck on
FUEL
SYSTEM 81H
Fuel injection system function
(Bank 1) P0171 or P0172 80H 2FH Long term fuel trim
P0171 or P0172 81H 24H The number of lambda control
clamped
P117A 82H 03H Cylinder A/F imbalance monitoring
82H Fuel injection system function
(Bank 2) P0174 or P0175 80H 2FH Long term fuel trim
P0174 or P0175 81H 24H The number of lambda control
clamped
P117B 82H 03H Cylinder A/F imbalance monitoring
Item
OBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-640
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
MISFIRE A1H Multiple cylinder misfiresP0301 80H 24H
Misfiring counter at 1000 revolution of
the first cylinder
P0302 81H 24H Misfiring counter at 1000 revolution of
the second cylinder
P0303 82H 24H Misfiring counter at 1000 revolution of
the third cylinder
P0304 83H 24H Misfiring counter at 1000 revolution of
the fourth cylinder
P0305 84H 24H Misfiring counter at 1000 revolution of
the fifth cylinder
P0306 85H 24H Misfiring counter at 1000 revolution of
the sixth cylinder
P0307 86H 24H Misfiring counter at 1000 revolution of
the seventh cylinder
P0308 87H 24H Misfiring counter at 1000 revolution of
the eighth cylinder
P0300 88H 24H Misfiring counter at 1000 revolution of
the multiple cylinders
P0301 89H 24H Misfiring counter at 200 revolution of
the first cylinder
P0302 8AH 24H Misfiring counter at 200 revolution of
the second cylinder
P0303 8BH 24H Misfiring counter at 200 revolution of
the third cylinder
P0304 8CH 24H Misfiring counter at 200 revolution of
the fourth cylinder
P0305 8DH 24H Misfiring counter at 200 revolution of
the fifth cylinder
P0306 8EH 24H Misfiring counter at 200 revolution of
the sixth cylinder
P0307 8FH 24H Misfiring counter at 200 revolution of
the seventh cylinder
P0308 90H 24H Misfiring counter at 200 revolution of
the eighth cylinder
P0300 91H 24H Misfiring counter at 1000 revolution of
the single cylinder
P0300 92H 24H Misfiring counter at 200 revolution of
the single cylinder
P0300 93H 24H Misfiring counter at 200 revolution of
the multiple cylinders
Item
OBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-672
< BASIC INSPECTION >[VQ35DE]
DIAGNOSIS AND REPAIR WORKFLOW
• Perform Component Function Check if DTC CONFIR
MATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effect ive alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected?
YES >> GO TO 10.
NO >> Check according to GI-43, "Intermittent Incident"
.
6.PERFORM BASIC INSPECTION
Perform EC-675, "Work Procedure"
.
Do you have CONSULT?
YES >> GO TO 7.
NO >> GO TO 9.
7.PERFORM SPEC IN DATA MONITOR MODE
With CONSULT
Make sure that “MAS A/F SE-B1” , “MAS A/F SE-B2”, “B/FUEL SCHDL”, “A/F ALPHA-B1” and “A/F ALPHA-
B2” are within the SP value using CONSULT “SPEC” in “DATA MONITOR” mode of “ENGINE”. Refer to EC-
701, "Component Function Check".
Is the measurement value within the SP value?
YES >> GO TO 9.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART BY TROUBL E DIAGNOSIS - SPECIFICATION VALUE
Detect malfunctioning part according to EC-702, "Diagnosis Procedure"
.
Is a malfunctioning part detected?
YES >> GO TO 11.
NO >> GO TO 9.
9.DETECT MALFUNCTIONING SYST EM BY SYMPTOM TABLE
Detect malfunctioning system according to EC-987, "Symptom Table"
based on the confirmed symptom in
step 4, and determine the trouble diagnosis order based on possible causes and symptoms.
>> GO TO 10.
10.DETECT MALFUNCTIONING PA RT BY DIAGNOSIS PROCEDURE
Inspect according to Diagnos is Procedure of the system.
NOTE:
The Diagnosis Procedure in EC section described based on open circuit inspection. A short circuit inspection
is also required for the circuit check in the Diagnosis Procedure. For details, refer to GI-46, "Circuit Inspec-
tion".
Is a malfunctioning part detected?
YES >> GO TO 11.
NO >> Monitor input data from related sensors or check voltage of related ECM terminals using CON-
SULT. Refer to EC-613, "Reference Value"
.
11 .REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.
3. Check DTC. If DTC is displayed, erase it.
With CONSULT: Refer to “How to Erase DTC and 1st Trip DTC” in EC-601, "CONSULT Function"
.
Without CONSULT: Refer to “How to Erase Self-diagnostic Results” in EC-598, "On Board Diagnosis
Function".
>> GO TO 12.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM