Nissan X-Trail 32. Manual — part 797
P0607 ECM
EC-317
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0607 ECM
DTC Description
INFOID:0000000010775211
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.
DTC DETECTION LOGIC
POSSIBLE CAUSE
ECM
FAIL-SAFE
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010775212
1.
INSPECTION START
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform “DTC Confirmation Procedure”. Refer to
.
Is 1st trip DTC detected?
YES
>> Replace ECM. Refer to
EC-430, "Removal and Installation"
NO
>> INSPECTION END
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0607
ECM
(Control module performance)
When detecting error during the initial diagnosis of CAN controller of ECM.
Engine operating condition in fail-safe mode
Fail safe mode
Vehicle behavior
Traveling con-
trol mode
Accelerator an-
gle variation
control
ECM controls the accelerator pedal depression speed to make it slower than actual speed. This
causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
ECM does not control the accelerator pedal releasing speed.
Engine output
control
ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle
speed to encourage the driver to repair malfunction.
EC-318
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0611 ECM PROTECTION
P0611 ECM PROTECTION
DTC Description
INFOID:0000000010775213
This DTC is detected when the ECM protective function is activated due to an extreme temperature increasein
ECM, resulting from severe conditions such as heavy load driving.
DTC DETECTION LOGIC
POSSIBLE CAUSE
ECM overheating
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
This DTC is displayed as protection function history. If no malfunction is detected after the diagnosis, the cus-
tomer must be informed of the activation of the protection function.
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000010775214
1.
INSPECTION START
1.
“DTC Confirmation Procedure”. Refer to
.
2.
Check 1st trip DTC.
Is the 1st trip DTC P0611 detected?
YES
>> Proceed to
NO
>> Explain the customer about the activation of the protection function.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0611
FIC MODULE
ECM overheat protection control is activated.
P062B ECM
EC-319
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P062B ECM
DTC Description
INFOID:0000000010775215
This DTC is detected when the ECM-integrated injector driver unit has a malfunction.
DTC Logic
INFOID:0000000010775216
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (Fuel injector circuit is open or shorted.)
• Battery power supply
• ECM (Injector driver unit)
FAIL-SAFE
NOTE:
Fail-safe mode may not start depending on malfunction type of ECM.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine and keep the engine speed at idle for 30 seconds.
2.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010775217
1.
CHECK FUEL INJECTOR
Check fuel injector. Refer to
EC-386, "Component Function Check"
.
Is inspection result normal?
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P062B
ECM
(Internal control module fuel injector control
performance)
Injector driver unit is malfunctioning.
Engine operating condition in fail-safe mode
Fail safe mode
Vehicle behavior
Traveling con-
trol mode
Accelerator an-
gle variation
control
ECM controls the accelerator pedal depression speed to make it slower than actual speed. This
causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
ECM does not control the accelerator pedal releasing speed.
Combustion
control mode
Stratified charge
combustion
control at start-
ing
No stratified charge combustion at starting (cold start).
EC-320
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P062B ECM
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC confirmation procedure again. Refer to
.
4.
Check 1st trip DTC.
Is the DTC P062B displayed again?
YES
>> Replace ECM. Refer to
EC-430, "Removal and Installation"
NO
>> INSPECTION END
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