DTC Logic
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1805 | BRAKE SW/CIRCUIT (Brake switch circuit) | Stop lamp signal is not sent to ECM for extremely long time while the vehicle is driving. |
|
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
NOTE:
Since this DTC is difficult to be confirmed, check component function to judge the normality.
>> Proceed to EC-410, "Component Function Check".
Component Function Check
1.CHECK BRAKE SWITCH FUNCTION
With CONSULT
Without CONSULT
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-410, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK STOP LAMP SWITCH OPERATION
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Check power supply circuit for 12V battery power supply.
NO >> Repair or replace error-detected parts.
4.CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to EC-412, "Component Inspection (Stop Lamp Switch)".
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace stop lamp switch. Refer to BR-22, "Exploded View".
5.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
Component Inspection (Stop Lamp Switch)
1.CHECK STOP LAMP SWITCH-I
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-II
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace stop lamp switch. Refer to BR-22, "Exploded View".
Wiring diagram
Intelligent key system/engine start function
Wiring diagram
Nissan vehicle immobilizer systemnats
Wiring Diagram
Vehicle security system
Wiring diagram
...
U1010 control unit (can)
Description
Initial diagnosis of combination meter.
Dtc logic
Dtc detection logic
Dtc
Display contents of consult
Detection condition
Possible malfunction
U1010
CONTROL UNIT (CAN)
[U1010]
When detecting error during the initial diagnosis of
the can controlle ...
P1556, P1557 Battery temperature sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P1556 or P1557 is displayed with DTC P0643, first perform the
trouble diagnosis for DTC P0643.
Refer to EC-353, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible caus ...