Nissan Tiida C11. Manual — part 631
EC-1174
< COMPONENT DIAGNOSIS >
[K9K]
P0575 ASCD STEERING SWITCH
P0575 ASCD STEERING SWITCH
Description
INFOID:0000000001162642
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:0000000001162643
DTC DETECTION LOGIC
NOTE:
• Special note:
If the DTC is present, the cruise control/speed limiter function will be inhibited.
Diagnosis Procedure
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1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ground connection E15. Refer to Ground inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK ASCD 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 SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ASCD switch harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between ASCD switch harness connector and ground.
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
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
+
–
Condition
Voltage
Connector
Terminal
Connector
Terminal
E16
98
(ASCD switch signal)
E16
128
ASCD switch: ON
Battery voltage
ASCD switch: OFF
0V
ASCD switch
Ground
Voltage
Connector
Terminal
M81
6
Ground
Battery voltage
P0575 ASCD STEERING SWITCH
EC-1175
< COMPONENT DIAGNOSIS >
[K9K]
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N
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Check the following.
• 10A fuse (No.2)
• Harness for open or short between ASCD switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK ASCD SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between ASCD switch harness connector and ECM harness connector.
4.
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
Check the following.
• Harness connectors M69, E7
• Harness for open or short between ECM and ASCD switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK ASCD SWITCH
EC-1176, "Component Inspection (ASCD Switch)"
.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Replace ASCD switch.
8.
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.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 9.
9.
DETECT MALFUNCTIONING PART
• Harness connectors M69, E7
• 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.
10.
CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between combination switch harness connector and ECM harness connector.
ASCD switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M81
5
E16
98
Existed
Combination switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M31
15
E16
111
Existed
EC-1176
< COMPONENT DIAGNOSIS >
[K9K]
P0575 ASCD STEERING SWITCH
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 11.
11.
DETECT MALFUNCTIONING PART
• Harness connectors M69, E7
• 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.
12.
CHECK ASCD STEERING SWITCH
EC-1176, "Component Inspection (ASCD Steering Switch)"
.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Replace ASCD steering switch.
13.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
>> INSPECTION END
Component Inspection (ASCD Switch)
INFOID:0000000001603813
1.
CHECK ASCD SWITCH-I
1.
Turn ignition switch OFF.
2.
Disconnect ASCD switch harness connector.
3.
Check the continuity between ASCD switch terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace ASCD switch.
Component Inspection (ASCD Steering Switch)
INFOID:0000000001162645
1.
CHECK ASCD STEERING SWITCH
1.
Disconnect combination switch (spiral cable) harness connector M31.
2.
Check the continuity between combination switch harness connector terminals under following conditions.
Combination switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
M31
14
E16
110
Existed
Terminals
Condition
Continuity
5 and 6
ASCD switch ON
Existed
ASCD switch OFF
Not existed
Combination meter
Condition
Resistance
Connector
Terminals
M31
14 and 15
(Combination switch)
CANCEL switch
Approx. 0
Ω
SET – switch
Approx. 100
Ω
SET + switch
Approx. 274
Ω
RESUME switch
Approx. 910
Ω
P0575 ASCD STEERING SWITCH
EC-1177
< 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 ASCD steering switch.
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