Nissan Primera P12. Manual — part 285
BRAKE SWITCH
EC-325
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
EBS013T9
MBWA0610E
EC-326
[YD (WITH EURO-OBD)]
BRAKE SWITCH
Diagnostic Procedure
EBS016LA
1.
CHECK OVERALL FUNCTION-I
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “BRAKE SW” in “DATA MONITOR” mode with CON-
SULT-II.
3.
Check “BRAKE SW” indication under the following conditions.
Without CONSULT-II
1.
Turn ignition switch ON.
2.
Check voltage between ECM terminal 100 and ground under the
following conditions.
OK or NG
OK (Models with ASCD)>>GO TO 2.
OK (Models without ASCD)>>INSPECTION END
NG
>> GO TO 3.
CONDITION
INDICATION
When brake pedal is depressed
ON
When brake pedal is released
OFF
PBIB0472E
Condition
Voltage
When brake pedal is depressed
battery voltage
When brake pedal is released
Approximately 0V
MBIB1097E
BRAKE SWITCH
EC-327
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
2.
CHECK OVERALL FUNCTION-II
With CONSULT-II
Check “BRAKE SW2” indication in “DATA MONITOR” mode.
Without CONSULT-II
Check voltage between ECM terminal 101 and ground under the fol-
lowing conditions.
OK or NG
OK
>> INSPECTION END.
NG
>> GO TO 8.
3.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch harness connector.
3.
Check voltage between stop lamp switch terminal 1 and ground
with CONSULT -II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
CONDITION
INDICATION
When brake pedal or clutch pedal is depressed
ON
When brake pedal and clutch pedal are released
OFF
SEC013D
Condition
Voltage
When brake pedal or clutch pedal is depressed
Approximately 0V
When brake pedal and clutch pedal are released
Battery voltage
PBIB1677E
MBIB0235E
Voltage: Battery voltage
PBIB0117E
EC-328
[YD (WITH EURO-OBD)]
BRAKE SWITCH
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-330, "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
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