Nissan X-Trail 32. Manual — part 899
P1564 ASCD STEERING SWITCH
EC-725
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
NO
>> GO TO 2.
2.
CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT
1.
Turn ignition switch ON.
2.
Select “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode of “ENGINE”
using CONSULT.
3.
Check each item indication as per the following conditions.
Without CONSULT
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 3.
3.
CHECK ASCD STEERING SWITCH GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Disconnect combination switch (spiral cable) harness connector.
4.
Check the continuity between combination switch (spiral cable) and ECM harness connector.
5.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT
Monitor item
Condition
Indication
MAIN SW
MAIN switch
Pressed
ON
Released
OFF
CANCEL SW
CANCEL switch
Pressed
ON
Released
OFF
RESUME/ACC
SW
ACCEL/RES switch
Pressed
ON
Released
OFF
SET SW
COAST/SET switch
Pressed
ON
Released
OFF
ECM
Condition
Voltage
(Approx.)
Connector
+
-
Terminal
E60
110
111
MAIN switch: Pressed
0 V
CANCEL switch: Pressed
1 V
COAST/SET switch: Pressed
2 V
ACCEL/RES switch: Pressed
3 V
All ASCD steering switches: Released
4 V
+
−
Continuity
Combination switch
(Spiral cable)
ECM
Connector
Terminal
Connector
Terminal
M33
28
E60
111
Existed
EC-726
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P1564 ASCD STEERING SWITCH
1.
Check the continuity between ECM harness connector and combination switch.
2.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK ASCD STEERING SWITCH
EC-726, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace ASCD steering switch. Refer to
CHG-46, "QR25DE : Removal and Installation"
.
6.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000010986434
1.
CHECK ASCD STEERING SWITCH
1.
Disconnect combination switch (spiral cable) harness connector.
2.
Check the resistance between combination switch harness connector terminals as per the following condi-
tions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace ASCD steering switch. Refer to
ST-12, "Removal and Installation"
+
−
Continuity
Combination switch
(Spiral cable)
ECM
Connector
Terminal
Connector
Terminal
M33
27
E60
110
Existed
Combination switch
(Spiral cable)
Condition
Resistance
(Approx.)
Connector
+
−
Terminals
M303
9
8
MAIN switch: Pressed
0
Ω
CANCEL switch: Pressed
250
Ω
COAST/SET switch: Pressed
660
Ω
ACCEL/RES switch: Pressed
1,480
Ω
All ASCD steering switches: Released
4,000
Ω
P1568 SIGNAL INVALID
EC-727
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P1568 SIGNAL INVALID
DTC Description
INFOID:0000000010986435
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Chassis control module
• ECM
FAIL-SAFE
Active trace control does not function.
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P1568 is displayed with DTC UXXXX, first perform the confirmation procedure for DTC UXXXX.
Is applicable DTC detected?
YES
>> Perform diagnosis for detected DTC. Refer to
.
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 5 seconds.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010986436
1.
CHECK DTC PRIORITY
If DTC P1568 is displayed with DTC UXXXX, first perform the confirmation procedure for DTC UXXXX.
Is applicable DTC detected?
YES
>> Perform diagnosis for detected DTC. Refer to
.
NO
>> GO TO 2.
2.
CHECK SELF-DIAGNOSTIC RESULT OF CHASSIS CONTROL MODULE
Check that the chassis control module does not detect any DTC.
Is any DTC detected?
YES
>> GO TO 3.
NO
>> Replace chassis control module. Refer to
DAS-278, "Removal and Installation"
.
3.
REPLACE CHASSIS CONTROL MODULE
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1568
ICC COMMAND VALUE
(Intelligent cruise control command value)
ECM detects that a throttle valve opening angle request signal sent from
chassis control module is difference from the specified value calculated by
ECM.
EC-728
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P1568 SIGNAL INVALID
1.
Replace chassis control module. Refer to
DAS-278, "Removal and Installation"
2.
Perform DTC Confirmation Procedure again.
Is DTC P1568 detected again?
YES
>> Replace ECM. Refer to
EC-806, "Removal and Installation"
NO
>> INSPECTION END
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