DTC Logic
DTC DETECTION LOGIC
DTC |
Display item |
Malfunction detected condition |
Possible cause |
C1609 | CAN VHCL SPEED |
|
|
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
Is DTC “C1609” detected? YES >> Proceed to diagnosis procedure. Refer to STC-26, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT
Is any DTC detected? YES >> Check the DTC. Refer to BRC-55, "DTC Index".
NO >> GO TO 2.
2.CHECK TERMINALS AND HARNESS CONNECTORS
Check EPS control unit pin terminals for damage or loose connection with harness connector.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace malfunctioning parts.
3.PERFORM SELF-DIAGNOSIS
With CONSULT
Perform “EPS” self-diagnosis.
Is DTC “C1609” detected? YES >> EPS control unit is malfunctioning. Replace steering column assembly. Refer to STC-36, "Removal and Installation".
NO >> Check intermittent incident. Refer to GI-41, "Intermittent Incident".
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-39570)
Chassis Ear
Locating the noise
—
(J-50397)
NISSAN Squeak and Rattle
Kit
...
Idle air volume learning
Description
Idle Air Volume Learning is a function of ECM to learn the idle air volume
that keeps each engine idle speed
within the specific range. It must be performed under any of the following
conditions:
Each time electric throttle control actuator or ECM is replaced.
Idle spee ...
Terms
It is important to familiarize yourself with
the following terms before loading your
vehicle:
Curb Weight (actual weight of your
vehicle) - vehicle weight including:
standard and optional equipment, fluids,
emergency tools, and spare tire
assembly. This weight does not include
...