Nissan Rogue. Instruction — part 400
DLN-44
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
P1804 AWD CONTROL UNIT
P1804 AWD CONTROL UNIT
DTC Description
INFOID:0000000011278328
DTC DETECTION LOGIC
POSSIBLE CAUSE
Internal malfunction of AWD control unit.
FAIL-SAFE
AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes
front-wheel drive.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the ignition switch ON.
2. Perform “Self Diagnostic Result” of “ALL MODE AWD/4WD”.
Is DTC “P1804” detected?
YES
>> Proceed to diagnosis procedure. Refer 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:0000000011278329
1.
PERFORM SELF DIAGNOSTIC RESULT
With CONSULT
After erasing the DTC, perform DTC confirmation procedure again. Refer to
Is DTC P1804 detected?
YES
>> Replace AWD control unit. Refer
DLN-68, "Removal and Installation"
NO
>> Check AWD control unit pin terminals for damage or loose connection with harness connection
with harness connector. If any items are damaged, repair or replace error-detected parts.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1804
CONTROL UNIT
(Control unit)
Malfunction is detected in the memory (EEPROM) system of
AWD control unit.
P1808 WHEEL SPEED SENSOR
DLN-45
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
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P1808 WHEEL SPEED SENSOR
DTC Description
INFOID:0000000011278330
DTC DETECTION LOGIC
POSSIBLE CAUSE
• ABS malfunction
• Internal malfunction of AWD control unit
FAIL-SAFE
AWD control changes to front-wheel drive gradually (rear-wheels still have some driving torque), then AWD
control stops, and the vehicle becomes front-wheel drive.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the ignition switch ON.
2. Perform “ Self Diagnostic Result” of “ALL MODE AWD/4WD”.
Is DTC “P1808” detected?
YES
>> Proceed to diagnosis procedure. Refer 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:0000000011278331
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF DIAGNOSTIC RESULT
With CONSULT
Perform “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES
>> Check the DTC. Refer to
.
NO
>> GO TO 2.
2.
CHECK TERMINALS AND HARNESS CONNECTORS
Check AWD control unit pin terminals for damage or loose connection with harness connector.
Is inspection result normal?
YES
>> After turning the ignition switch OFF, perform DTC confirmation procedure again. If DTC “P1808”
is detected, Replace AWD control unit. Refer to
DLN-68, "Removal and Installation"
NO
>> Repair or replace error-detected parts.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1808
VHCL SPEED SEN-ABS
(Vehicle speed sensor-ABS)
• Malfunction is detected in vehicle speed signal that is out-
put from ABS actuator and electric unit (control unit)
through CAN communication.
• Improper signal is input while driving.
DLN-46
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
P1809 AWD CONTROL UNIT
P1809 AWD CONTROL UNIT
DTC Description
INFOID:0000000011278332
DTC DETECTION LOGIC
POSSIBLE CAUSE
Internal malfunction of AWD control unit
FAIL-SAFE
AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes
front-wheel drive.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the ignition switch ON.
2. Perform “Self Diagnostic Result” of “ALL MODE AWD/4WD”.
Is DTC “P1809” detected?
YES
>> Proceed to diagnosis procedure. Refer 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:0000000011278333
1.
PERFORM SELF DIAGNOSTIC RESULT
With CONSULT
After the DTC, perform DTC confirmation procedure again. Refer to
Is DTC P1809 detected?
YES
>> Replace AWD control unit. Refer
DLN-68, "Removal and Installation"
NO
>> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace error-detected parts.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1809
CONTROL UNIT
(Control unit)
AD converter system of AWD control unit is malfunctioning.
P1811 BATTERY VOLTAGE
DLN-47
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TY21C]
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P1811 BATTERY VOLTAGE
DTC Description
INFOID:0000000011278334
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Malfunction of AWD control unit power supply circuit (open or short)
• Battery power supply
• Ignition power supply
• Internal malfunction of AWD control unit
FAIL-SAFE
AWD control changes to front-wheel drive immediately, then AWD control stops, and the vehicle becomes
front-wheel drive.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
With CONSULT
1. Turn the ignition switch ON.
2. Drive the vehicle for a while.
3. Stop the vehicle.
4. Perform “Self Diagnostic Result” of “ALL MODE AWD/4WD”.
Is DTC “P1811” detected?
YES
>> Proceed to diagnosis procedure. Refer 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:0000000011278335
1.
CHECK AWD CONTROL UNIT POWER SUPPLY (1)
1. Turn the ignition switch OFF.
2. Disconnect AWD control unit harness connector.
3. Check the voltage between AWD control unit harness connector and ground.
4. Turn the ignition switch ON.
CAUTION:
Never start the engine.
5. Check the voltage between AWD control unit harness connector and ground.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1811
BATTERY VOLTAGE
(Battery voltage)
When engine is running and AWD control unit power supply
is less than 9 V or higher than 16 V.
AWD control unit
—
Voltage (Approx.)
Connector
Terminal
B75
7
Ground
0 V
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