2010 INFINITI QX56 Factory Service Manual

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Page 1681 of 4210

INFINITI QX56 2010 Factory Service Manual EC-328
< COMPONENT DIAGNOSIS >[VK56DE]
P1564 ICC STEERING SWITCH
P1564 ICC STEERING SWITCH
Component DescriptionINFOID:0000000005149386
ICC steering switch has variant values of electrical
resistance

EC-328
< COMPONENT DIAGNOSIS >[VK56DE]
P1564 ICC STEERING SWITCH
P1564 ICC STEERING SWITCH
Component DescriptionINFOID:0000000005149386
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 CCS-13, "
System Description" for the ICC function.
On Board Diagn osis LogicINFOID:0000000005149387
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 pe rform the trouble diagnosis for DTC P0605. Refer to
EC-286, "
On Board Diagnosis Logic".
DTC Confirmation ProcedureINFOID:0000000005149388
1. If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next step.
a. Turn ignition switch OFF and wait at least 10 seconds.
b. Turn ignition switch ON.
c. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
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 sec-
onds.
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. Check DTC.
10. If DTC is detected, go to EC-328, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005149389
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
PBIB2640E
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
• Combination switch (spiral cable)
•ECM
Revision: April 20092010 QX56

Page 1682 of 4210

INFINITI QX56 2010 Factory Service Manual P1564 ICC STEERING SWITCHEC-329
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
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K L
M A
EC
NP
O
Refer to
EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connection

Page 1683 of 4210

INFINITI QX56 2010 Factory Service Manual EC-330
< COMPONENT DIAGNOSIS >[VK56DE]
P1564 ICC STEERING SWITCH
OK >> GO TO 8.
NG >> GO TO 3.
3.CHECK ICC STEERING SWITCH GRO
UND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect

Page 1684 of 4210

INFINITI QX56 2010 Factory Service Manual P1564 ICC STEERING SWITCHEC-331
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
1. Disconnect combination switch (spiral cable) harness connector M102.
2. Check continuity between com

Page 1685 of 4210

INFINITI QX56 2010 Factory Service Manual EC-332
< COMPONENT DIAGNOSIS >[VK56DE]
P1564 ASCD STEERING SWITCH
P1564 ASCD STEERING SWITCH
Component DescriptionINFOID:0000000005149391
ASCD steering switch has variant values of electrical
resista

EC-332
< COMPONENT DIAGNOSIS >[VK56DE]
P1564 ASCD STEERING SWITCH
P1564 ASCD STEERING SWITCH
Component DescriptionINFOID:0000000005149391
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-33, "
System Description" for the ASCD function.
On Board Diagn osis LogicINFOID:0000000005149392
•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 pe rform the trouble diagnosis for DTC P0605. Refer to
EC-286, "
On Board Diagnosis Logic".
DTC Confirmation ProcedureINFOID:0000000005149393
1. If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next step.
a. Turn ignition switch OFF and wait at least 10 seconds.
b. Turn ignition switch ON.
c. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
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 sec-
onds.
7. Press SET/COAST switch for at least 10 seconds , then release it and wait at least 10 seconds.
8. Check DTC.
9. If DTC is detected, go to EC-332, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005149394
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
PBIB2640E
DTC No. Trouble Diagnosi s NameDTC 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 steer- ing 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
• Combination meter (spiral cable)
•ECM
Revision: April 20092010 QX56

Page 1686 of 4210

INFINITI QX56 2010 Factory Service Manual P1564 ASCD STEERING SWITCHEC-333
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Refer to
EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connectio

Page 1687 of 4210

INFINITI QX56 2010 Factory Service Manual EC-334
< COMPONENT DIAGNOSIS >[VK56DE]
P1564 ASCD STEERING SWITCH
2. Disconnect combination switch harness connector M102.
3. Disconnect ECM harness connector.
4. Check harness continuity between comb

Page 1688 of 4210

INFINITI QX56 2010 Factory Service Manual P1564 ASCD STEERING SWITCHEC-335
< COMPONENT DIAGNOSIS > [VK56DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
2. Check continuity between combination switch (spiral cable) ter-
minals 14 and 15 with pushing each

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