Infiniti Q45. Manual — part 485
DTC P1564 ICC STEERING SWITCH
EC-579
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DTC P1564 ICC STEERING SWITCH
PFP:25551
Component Description
NBS0023V
ICC 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
for the ICC function.
CONSULT-II Reference Value in Data Monitor Mode
NBS0023W
Specification data are reference values.
On Board Diagnosis Logic
NBS0023X
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to
.
PBIB2434E
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
DIST SW
●
Ignition switch: ON
DISTANCE switch: Pressed
ON
DISTANCE switch: Released
OFF
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
P1564
1564
ICC steering switch
●
An excessively high voltage signal from the
ICC steering switch is sent to ECM.
●
ECM detects that input signal from the ICC
steering switch is out of the specified range.
●
ECM detects that the ICC steering switch is
stuck ON.
●
Harness or connectors
(The switch circuit is open or shorted.)
●
ICC steering switch
●
ECM
EC-580
DTC P1564 ICC STEERING SWITCH
DTC Confirmation Procedure
NBS0023Y
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.
Press DISTANCE switch for at least 10 seconds, then release it
and wait at least 10 seconds.
9.
If DTC is detected, go to
EC-582, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
DTC P1564 ICC STEERING SWITCH
EC-581
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Wiring Diagram
NBS0023Z
TBWM1245E
EC-582
DTC P1564 ICC 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.
Diagnostic Procedure
NBS00240
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten three ground screws on the body.
Refer to
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
67
B
Sensor ground
(MAF sensor, IAT sensor,
ECT sensor, FTT sensor,
EVAP control system pres-
sure sensor, PSP sensor,
ICC steering switch, Refrig-
erant pressure sensor)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
99
G/OR
ICC steering switch
[Ignition switch: ON]
●
ICC steering switch: OFF
Approximately 4.3V
[Ignition switch: ON]
●
MAIN switch: Pressed
Approximately 0V
[Ignition switch: ON]
●
CANCEL switch: Pressed
Approximately 1.3V
[Ignition switch: ON]
●
RESUME/ACCELERATE switch: Pressed
Approximately 3.7V
[Ignition switch: ON]
●
SET/COAST switch: Pressed
Approximately 3V
[Ignition switch: ON]
●
DISTANCE switch: Pressed
Approximately 2.2V
PBIB2417E
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