Infiniti G35 (V35). Manual — part 440
ASCD BRAKE SWITCH
EC-641
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EC
M/T MODELS
1.
CHECK OVERALL FUNCTION-I
With CONSULT-II
1.
Turn ignition switch ON.
2.
Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT-II.
3.
Check “BRAKE SW1” indication under the following conditions.
Without CONSULT-II
1.
Turn ignition switch ON.
2.
Check voltage between ECM terminal 108 and ground under the
following conditions.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
CONDITION
INDICATION
Brake pedal and/or clutch pedal: Slightly depressed
OFF
Brake pedal and clutch pedal: Fully released
ON
SEC011D
CONDITION
VOLTAGE
Brake pedal and/or clutch pedal: Slightly depressed
Approximately 0V
Brake pedal and clutch pedal: Fully released
Battery voltage
MBIB0061E
EC-642
ASCD BRAKE SWITCH
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 11.
3.
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 1 and
ground under the following conditions with CONSULT-II or
tester.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 4.
CONDITION
INDICATION
Brake pedal: Fully released
OFF
Brake pedal: Slightly depressed
ON
SEC013D
CONDITION
VOLTAGE
Brake pedal: Fully released
Approximately 0V
Brake pedal: Slightly depressed
Battery voltage
MBIB0060E
PBIB1282E
CONDITION
VOLTAGE
Brake pedal: Fully released
Battery voltage
Brake pedal: Slightly depressed
Approximately 0V
PBIB0799E
ASCD BRAKE SWITCH
EC-643
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EC
4.
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 and
ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 6.
NG
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
●
Fuse block (J/B) connector E101
●
10A fuse
●
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
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 and ASCD clutch switch terminal 1.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK ASCD BRAKE SWITCH
Refer to
EC-646, "Component Inspection"
OK or NG
OK
>> GO TO 16.
NG
>> Replace ASCD brake switch.
PBIB1282E
Voltage: Battery voltage
PBIB0857E
Continuity should exist.
EC-644
ASCD BRAKE SWITCH
8.
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 ASCD clutch switch terminal 2 and ECM terminal 108.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 9.
9.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E10, F1
●
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.
10.
CHECK ASCD CLUTCH SWITCH
Refer to
EC-646, "Component Inspection"
OK or NG
OK
>> GO TO 16.
NG
>> Replace ASCD clutch switch.
11.
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 3 and ground
with CONSULT-II or tester.
OK or NG
OK
>> GO TO 13.
NG
>> GO TO 12.
Continuity should exist.
PBIB1282E
Voltage: Battery voltage
PBIB2102E
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