Nissan Almera Tino V10. Instruction — part 456
EC-650
[QG (WITHOUT EURO-OBD)]
POWER SUPPLY CIRCUIT FOR ECM
15.
CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminals 1, 115, 116 and engine ground.
Refer to Wiring Diagram.
4.
Also check harness for short to power.
OK or NG
OK
>> GO TO 17.
NG
>> GO TO 16.
16.
DETECT MALFUNCTIONING PART
Check the following
●
Harness connectors M71, F45
●
Harness for open or short between ECM and engine ground
>> Repair open circuit or short to power in harness or connectors.
17.
CHECK INTERMITTENT INCIDENT
Refer to
EC-644, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS00QVQ
ECM RELAY
1.
Apply 12V direct current between ECM relay terminals 1 and 2.
2.
Check continuity between relay terminals 3 and 5, 6 and 7.
3.
If NG, replace ECM relay.
Continuity should exist.
Condition
Continuity
12V direct current supply
between terminals 1 and
2
Yes
OFF
No
PBIB0077E
DTC U1000, U1001 CAN COMMUNICATION LINE
EC-651
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC U1000, U1001 CAN COMMUNICATION LINE
PFP:23710
Description
EBS00QVR
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic
EBS00QVS
The MI will not light up for this diagnosis.
*1: This self-diagnosis has the one trip detection logic.
*2: The MI will not light up for this diagnosis.
DTC Confirmation Procedure
EBS00QVT
1.
Turn ignition switch “ON” and wait at least 3 seconds.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
If 1st trip DTC is detected, go to
EC-653, "Diagnostic Procedure"
.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
U1000
*1
1000
*1
CAN communication
line
●
ECM cannot communicate to other control
units.
●
ECM cannot communicate for more than the
specified time.
●
Harness or connectors
(CAN communication line is open or
shorted.)
U1001
*
2
1001 *2
EC-652
[QG (WITHOUT EURO-OBD)]
DTC U1000, U1001 CAN COMMUNICATION LINE
Wiring Diagram
EBS00QVU
YEC433A
DTC U1000, U1001 CAN COMMUNICATION LINE
EC-653
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Diagnostic Procedure
EBS00QVV
1.
INSPECTION START
1.
Turn ignition switch “ON”.
2.
Select “CAN DIAG SUPPORT MNTR” in “DATA MONITOR” mode with CONSULT-II.
3.
Print out the CONSULT-II screen.
A/T models
M/T models
>> Go to “CAN COMMUNICATION”, EL-459.
MBIB0180E
MBIB0179E
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