Nissan Primera P12. Instruction — part 261
DTC P0504 ASCD BRAKE SWITCH
EC-229
[YD (WITH EURO-OBD)]
C
D
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F
G
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M
A
EC
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Fuse block (J/B) connector M2
●
15A fuse
●
Harness for open or short between stop lamp switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between ECM terminal 100 and stop lamp switch terminal 2.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M77, F109
●
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK STOP LAMP SWITCH
Refer to
EC-231, "Component Inspection"
.
OK or NG
OK
>> GO TO 16.
NG
>> Replace stop lamp switch.
8.
CHECK ASCD BRAKE SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ASCD clutch switch harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between ASCD clutch switch terminal 2 and
ground under the following conditions with CONSULT-II or
tester.
OK or NG
OK
>> GO TO 13.
NG
>> GO TO 9.
Continuity should exist.
CONDITION
VOLTAGE
When brake pedal is released
Battery voltage
When brake pedal is depressed
Approx. 0V
MBIB0237E
EC-230
[YD (WITH EURO-OBD)]
DTC P0504 ASCD BRAKE SWITCH
9.
CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between ASCD brake switch terminal 1 (LHD
models) or 2 (RHD models) and ground with CONSULT-II or
tester.
OK or NG
OK
>> GO TO 11.
NG
>> GO TO 10.
10.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F106, M78
●
Harness for open or short between ASCD brake switch and ECM relay
●
Harness for open or short between ASCD brake switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
11.
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check harness continuity between ASCD brake switch terminal 2 (LHD models) or 1 (RHD models) and
ASCD brake clutch switch terminal 2.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 12.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.
CHECK ASCD BRAKE SWITCH
Refer to
EC-231, "Component Inspection"
.
OK or NG
OK
>> GO TO 16.
NG
>> Replace ASCD brake switch.
MBIB0235E
Voltage: Battery voltage
MBIB1082E
Continuity should exist.
DTC P0504 ASCD BRAKE SWITCH
EC-231
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
13.
CHECK ASCD CLUTCH SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 101 and ASCD clutch switch terminal 1.
Refer to Wiring Diagram.
4.
Also check harness for short to ground or short to power.
OK or NG
OK
>> GO TO 15.
NG
>> GO TO 14.
14.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M77, F109
●
Harness for open or short between ECM and ASCD clutch switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
15.
CHECK ASCD CLUTCH SWITCH
Refer to
EC-231, "Component Inspection"
.
OK or NG
OK
>> GO TO 16.
NG
>> Replace ASCD clutch switch.
16.
CHECK INTERMITTENT INCIDENT
Refer to
EC-75, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS011VF
ASCD BRAKE SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Check harness continuity between ASCD brake switch terminals
1 and 2 under the following conditions.
If NG, adjust ASCD brake switch installation, refer to
, and perform step 3 again.
ASCD CLUTCH SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect ASCD clutch switch harness connector.
3.
Check harness continuity between ASCD clutch switch terminals 1 and 2 under the following conditions.
Continuity should exist.
Condition
Continuity
When brake pedal is fully released.
Should exist.
When brake pedal is depressed.
Should not exist.
MBIB1083E
EC-232
[YD (WITH EURO-OBD)]
DTC P0504 ASCD BRAKE SWITCH
If NG, adjust ASCD clutch switch installation, refer to
, and perform step 3 again.
STOP LAMP SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch harness connector.
3.
Check harness continuity between stop lamp switch terminals 1
and 2 under the following conditions.
If NG, adjust stop lamp switch installation, refer to
, and perform step 3 again.
Condition
Continuity
When clutch pedal is fully released.
Should exist.
When clutch pedal is depressed.
Should not exist.
SEC024D
Condition
Continuity
When brake pedal is fully released.
Should not exist.
When brake pedal is depressed.
Should exist.
PBIB0118E
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