Nissan Pathfinder. Manual — part 443
EC-78
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
ECM
*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM inter-
nally. Thus, they differ from ECM terminals voltage signal.
*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to
*3: The item is indicated, but not used.
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.
AC EVA TEMP
Engine: Running
Indicates A/C evaporator
temperature sent from“A/C
auto amp.”.
AC EVA TARGET
Engine: Running
Indicates target A/C evapora-
tor temperature sent from “A/
C auto amp.”.
Monitor Item
Condition
Values/Status
JSBIA0505ZZ
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
1
(R)
128
(B)
Throttle control motor power
supply
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
2
(G)
128
(B)
Throttle control motor (Close)
Output
[Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully re-
leased
0 - 14 V
3
(Y)
128
(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
JMBIA1125GB
JMBIA0030GB
ECM
EC-79
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4
(LG)
107
(W)
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
(W)
128
(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
(BR)
128
(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
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JPBIA3359ZZ
JPBIA3360ZZ
JMBIA0031GB
JMBIA0032GB
JMBIA0902GB
EC-80
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
ECM
9
(LG)
128
(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
(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
(R)
—
Sensor ground
(Throttle position sensor)
—
—
—
22
(B)
128
(B)
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
(W)
128
(B)
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
(R)
Sensor power supply
(Throttle position sensor)
—
[Ignition switch: ON]
5 V
26
(GR)
128
(B)
Power supply for ECM (Back-
up)
Input
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
31
(V)
128
(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)
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0035GB
JMBIA0036GB
ECM
EC-81
< ECU DIAGNOSIS INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
33
(Y)
128
(B)
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
(V)
Fuel injector No. 2
45
(V)
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
(G)
128
(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
37
(SB)
128
(B)
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
(BR)
128
(B)
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
(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)
40
(BR)
128
(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)
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0047GB
JMBIA0048GB
JMBIA0902GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст