Nissan Almera Tino V10. Instruction — part 387
EC-374
[QG (WITH EURO-OBD)]
DTC P0550 PSP SENSOR
Wiring Diagram
EBS00QOD
YEC460A
DTC P0550 PSP SENSOR
EC-375
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure
EBS00QOE
1.
RETIGHTEN GROUND SCREWS
1.
Turn ignition switch “OFF”.
2.
Loosen and retighten engine ground screws.
>> GO TO 2.
2.
CHECK PSP SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect PSP sensor harness connector.
2.
Turn ignition switch “ON”.
3.
Check voltage between PSP sensor terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
12
L
Power steering pressure sensor
[Engine is running]
●
Steering wheel is being turned.
0.5 - 4.0V
[Engine is running]
●
Steering wheel is not being turned.
0.4 - 0.8V
57
B
Sensors' ground
(Power steering pressure sensor/
Refrigerant pressure sensor)
[Engine is running]
●
Idle speed
Approximately 0V
65
G
Sensor power supply (Power
steering pressure sensor)
[Ignition switch “ON”]
Approximately 5V
MBIB0095E
MBIB1006E
Voltage: Approximately 5V
SEF509Y
EC-376
[QG (WITH EURO-OBD)]
DTC P0550 PSP SENSOR
3.
CHECK PSP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 57 and PSP sensor terminal 1.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between ECM terminal 12 and PSP sensor terminal 2.
2.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK PSP SENSOR
Refer to
EC-376, "Component Inspection"
.
OK or NG
OK
>> GO TO 6.
NG
>> Replace PSP sensor.
6.
CHECK INTERMITTENT INCIDENT
Refer to
EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS00QOF
POWER STEERING PRESSURE SENSOR
1.
Reconnect all harness connectors disconnected.
2.
Start engine and let it idle.
3.
Check voltage between ECM terminal 12 and ground under the
following conditions.
Continuity should exist.
Continuity should exist.
Condition
Voltage
Steering wheel is being turned fully.
0.5 - 4.0V
Steering wheel is not being turned.
0.4 - 0.8V
MBIB0025E
DTC P0605 ECM
EC-377
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0605 ECM
PFP:23710
Component Description
EBS00QOG
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis Logic
EBS00QOH
This self-diagnosis has one or two trip detection logic.
FAIL-SAFE MODE
ECM enters fail-safe mode when malfunction A is detected.
DTC Confirmation Procedure
EBS00QOI
Perform “PROCEDURE FOR MALFUNCTION A” first. If the DTC cannot be confirmed, perform “PRO-
CEDURE FOR MALFUNCTION B”. If there is no malfunction on “PROCEDURE FOR MALFUNCTION B”,
perform “PROCEDURE FOR MALFUNCTION C”.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A
With CONSULT-II
1.
Turn ignition switch “ON”.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
If DTC is detected, go to
EC-378, "Diagnostic Procedure"
.
With GST
Follow the procedure “With CONSULT-II” above.
PBIB1164E
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0605
0605
Engine control module
A)
ECM calculation function is malfunctioning.
●
ECM
B)
ECM EEP-ROM system is malfunctioning.
C)
ECM self shut-off function is malfunctioning.
Detected items
Engine operation condition in fail-safe mode
Malfunction A
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5
degrees) by the return spring.
SEF058Y
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