Nissan Qashqai (2007-2010). Manual — part 466
![](/vehicle/qul/ene/roryboritele/chpluncak.png)
P0571 ASCD BRAKE SWITCH
EC-1383
< COMPONENT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace stop lamp switch.
Terminals
Condition
Continuity
1 and 2
(Stop lamp switch)
Brake pedal
Fully released
Not existed
Slightly depressed
Existed
3 and 4
(ASCD brake switch)
Brake pedal
Fully released
Existed
Slightly depressed
Not existed
![](/vehicle/qul/ene/roryboritele/ndard.png)
EC-1384
< COMPONENT DIAGNOSIS >
[K9K]
P0575 ASCD STEERING SWITCH
P0575 ASCD STEERING SWITCH
Description
INFOID:0000000001109187
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
DTC Logic
INFOID:0000000001115095
DTC DETECTION LOGIC
NOTE:
• Special note:
If the DTC is present, the cruise control/speed limiter function will be inhibited.
Diagnosis Procedure
INFOID:0000000000967575
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ground connection E17. Refer to Ground inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK ASCD STEERING SWITCH CIRCUIT
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 3.
3.
CHECK ASCD STEERING SWITCH CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect combination switch harness connector.
3.
Disconnect ECM harness connector.
4.
Check the continuity between combination switch harness connector and ECM harness connector.
5.
Also check harness for short to ground and short to power.
DTC No.
Trouble diagnosis name
Possible cause
P0575
CRUISE CONTROL/SPEED LIMITER FUNCTION
• 1.DEF: Values outside the levels
• CC.1: Short circuit to +12V
• 2.DEF: Signal outside upper level
• Harness or connectors
(ASCD steering switch circuit is open or shorted)
• ASCD steering switch
• Combination switch
ECM
Ground
Condition
Voltage
Connector
Terminal
E60
110
(ASCD steering switch signal)
Ground
MAIN switch: Pressed
Approx. 0V
CANSEL switch: Pressed
Approx. 1V
SET/COAST switch: Pressed
Approx. 2V
RESUME/ACCELERATE switch: Pressed
Approx. 3V
All ASCD steering switches: Released
Approx. 4V
Combination switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M352
15
E60
111
Existed
![](/vehicle/qul/ene/roryboritele/xpi.png)
P0575 ASCD STEERING SWITCH
EC-1385
< COMPONENT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
• Combination switch (spiral cable)
• Harness for open or short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between combination switch harness connector and ECM harness connector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
• Combination switch (spiral cable)
• Harness for open or short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK ASCD STEERING SWITCH
EC-1350, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace ASCD steering switch.
8.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000001098400
1.
CHECK ASCD STEERING SWITCH
1.
Disconnect combination switch (spiral cable) harness connector M352.
2.
Check the continuity between combination switch harness connector terminals under following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
Combination switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M352
14
E60
110
Existed
Combination meter
Condition
Resistance
Connector
Terminals
M352
14 and 15
(Combination switch)
MAIN switch: Pressed
Approx. 0
Ω
CANCEL switch: Pressed
Approx. 250
Ω
SET/COAST switch: Pressed
Approx. 660
Ω
RESUME/ACCELERATE switch: Pressed
Approx. 1,480
Ω
All ASCD steering switches: Released
Approx. 4,000
Ω
EC-1386
< COMPONENT DIAGNOSIS >
[K9K]
P0575 ASCD STEERING SWITCH
NO
>> Replace ASCD steering switch
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