Nissan Murano Z51. Manual — part 615
EC-468
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
ECM
*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
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
• ECM is located in the engine room left side near battery.
• Specification data are reference values.
• Pulse signal is measured by CONSULT-III.
ALT DUTY
• Engine: Idle
0 - 80%
A/F ADJ-B1
• Engine: Running
−
0.330 - 0.330
A/F ADJ-B2
• Engine: Running
−
0.330 - 0.330
BAT CUR SEN
• Engine speed: Idle
• Battery: Fully charged*
2
• Selector lever: P or N position
• Air conditioner switch: OFF
• No load
Approx. 2,600 - 3,500 mV
ALT DUTY SIG
• Power generation voltage variable control: Operating
ON
• Power generation voltage variable control: Not operating
OFF
HO2 S2 DIAG1 (B1)
DTC P0139 self-diagnosis (delayed response) is incomplete.
INCMP
DTC P0139 self-diagnosis (delayed response) is complete.
CMPLT
HO2 S2 DIAG1 (B2)
DTC P0159 self-diagnosis (delayed response) is incomplete.
INCMP
DTC P0159 self-diagnosis (delayed response) is complete.
CMPLT
HO2 S2 DIAG2 (B1)
DTC P0139 self-diagnosis (slow response) is incomplete.
INCMP
DTC P0139 self-diagnosis (slow response) is complete.
CMPLT
HO2 S2 DIAG2 (B2)
DTC P0159 self-diagnosis (slow response) is incomplete.
INCMP
DTC P0159 self-diagnosis (slow response) is complete.
CMPLT
Monitor Item
Condition
Values/Status
PBIA9221J
ECM
EC-469
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
1
(P/B)
112
(B)
Fuel injector No. 6
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)
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 rpm
BATTERY VOLTAGE
(11 - 14 V)
31
(R/W)
Fuel injector No. 2
32
(R/B)
Fuel injector No. 1
2
(G/W)
112
(B)
Throttle control motor power
supply
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
4
(BR/Y)
112
(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
5
(L)
112
(B)
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
(P)
112
(B)
Throttle control motor (Close)
Output
[Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully re-
leased
0 - 14 V
JMBIA0047GB
JMBIA0048GB
JMBIA0902GB
JMBIA0031GB
JMBIA0032GB
JMBIA1125GB
EC-470
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
ECM
8
(SB)
112
(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)
112
(B)
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
(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 rpm
0.1 - 0.4 V
19
(P)
Ignition signal No. 5
21
(W)
Ignition signal No. 4
12
(B)
—
ECM ground
—
—
—
13
(P/B)
112
(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 load
10 V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600
rpm
BATTERY VOLTAGE
(11 - 14 V)
14
(GR)
112
(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 ON
BATTERY VOLTAGE
(11 - 14 V)
15
(O)
112
(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
—
—
—
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0030GB
JMBIA0035GB
JMBIA0036GB
JMBIA0902GB
ECM
EC-471
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
17
(R)
112
(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 load
10 V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600
rpm
BATTERY VOLTAGE
(11 - 14 V)
24
(W/B)
112
(B)
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)
25
(P/L)
112
(B)
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
seconds after starting engine)
BATTERY VOLTAGE
(11 - 14 V)
26
(GR/B)
112
(B)
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)
27
(V)
112
(B)
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)
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0902GB
JMBIA0039GB
JMBIA0040GB
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