Infiniti G35 (V35). Manual — part 415
DTC P1564 ASCD STEERING SWITCH
EC-541
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DTC P1564 ASCD STEERING SWITCH
PFP:25551
Component Description
NBS000ZQ
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to
EC-29, "AUTOMATIC SPEED CONTROL DEVICE (ASCD)"
for the ASCD function.
CONSULT-II Reference Value in Data Monitor Mode
NBS000ZR
Specification data are reference values.
PBIB2766E
MONITOR ITEM
CONDITION
SPECIFICATION
MAIN SW
●
Ignition switch: ON
MAIN switch: Pressed
ON
MAIN switch: Released
OFF
CANCEL SW
●
Ignition switch: ON
CANCEL switch: Pressed
ON
CANCEL switch: Released
OFF
RESUME/ACC SW
●
Ignition switch: ON
RESUME/ACCELERATE switch:
Pressed
ON
RESUME/ACCELERATE switch:
Released
OFF
SET SW
●
Ignition switch: ON
SET/COAST switch: Pressed
ON
SET/COAST switch: Released
OFF
EC-542
DTC P1564 ASCD STEERING SWITCH
On Board Diagnosis Logic
NBS000ZS
●
This self-diagnosis has the one trip detection logic.
●
The MIL will not light up for this self-diagnosis.
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to
.
DTC Confirmation Procedure
NBS000ZT
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Wait at least 10 seconds.
4.
Press MAIN switch for at least 10 seconds, then release it and
wait at least 10 seconds.
5.
Press CANCEL switch for at least 10 seconds, then release it
and wait at least 10 seconds.
6.
Press RESUME/ACCELERATE switch for at least 10 seconds,
then release it and wait at least 10 seconds.
7.
Press SET/COAST switch for at least 10 seconds, then release
it and wait at least 10 seconds.
8.
If DTC is detected, go to
EC-545, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.
Trouble Diagnosis
Name
DTC Detecting Condition
Possible Cause
P1564
1564
ASCD steering
switch
●
An excessively high voltage signal from the ASCD
steering switch is sent to ECM.
●
ECM detects that input signal from the ASCD
steering switch is out of the specified range.
●
ECM detects that the ASCD steering switch is
stuck ON.
●
Harness or connectors
(The switch circuit is open or shorted.)
●
ASCD steering switch
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ECM
SEF058Y
DTC P1564 ASCD STEERING SWITCH
EC-543
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Wiring Diagram
NBS000ZU
TBWM0825E
EC-544
DTC P1564 ASCD STEERING SWITCH
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
67
B/W
Sensor ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
99
G/Y
ASCD steering switch
[Ignition switch: ON]
●
ASCD steering switch: OFF
Approximately 4V
[Ignition switch: ON]
●
MAIN switch: Pressed
Approximately 0V
[Ignition switch: ON]
●
CANCEL switch: Pressed
Approximately 1V
[Ignition switch: ON]
●
RESUME/ACCELERATE switch: Pressed
Approximately 3V
[Ignition switch: ON]
●
SET/COAST switch: Pressed
Approximately 2V
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