DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P1564 | ASCD SW (ASCD switch) |
|
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC P1564 is displayed with DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B.
Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-93, "DTC Index".
NO >> GO TO 2.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
Is DTC detected? YES >> Proceed to EC-403, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK DTC PRIORITY
If DTC P1564 is displayed with DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B.
Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-93, "DTC Index".
NO >> GO TO 2.
2.CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT
Without CONSULT
Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 3.
3.CHECK ASCD STEERING SWITCH GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK ASCD STEERING SWITCH
Refer to EC-405, "Component Inspection".
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace ASCD steering switch. Refer to ST-11, "Removal and Installation".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK ASCD STEERING SWITCH
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace ASCD steering switch. Refer to ST-11, "Exploded View".
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-43897-18)
Oxygen sensor thread cutter
Reconditioning the exhaust system threads
before installing ...
Symptom diagnosis
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS
Symptom Table
NOTE:
Before performing the diagnosis in the following table, check
“SEC-150, "Work Flow"”.
Check that vehicle is under the condition shown in “Conditions
of vehicle” before starting diagnosis, ...
P0643 sensor power supply
Description
ECM supplies a voltage of 5 V to some of the sensors systematically divided
into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a
malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited ...