Nissan Murano Z50 (2005 year). Manual — part 36
INTELLIGENT KEY SYSTEM
BL-145
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Revision: 2005 August
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5.
CHECK DOOR REQUEST SWITCH CIRCUIT
1.
Disconnect Intelligent Key unit connector.
2.
Check continuity between Intelligent Key unit connector M99 terminals 5 (driver door), 25 (passenger
door), and 29 (back door) and door request switch connector D12 (driver door), D39 (passenger door),
D108 (back door) terminal 1.
3.
Check continuity between door request switch connector D12
(driver door), D42 (passenger door), D113 (back door) terminal
1 and ground.
OK or NG
OK
>> Replace Intelligent Key unit.
NG
>> Repair or replace harness between Intelligent Key unit and door request switch.
Check Unlock Sensor
AIS006CL
1.
CHECK UNLOCK SENSOR POWER SUPPLY
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK
>> Unlock sensor is OK.
NG
>> GO TO 2.
2.
CHECK UNLOCK SENSOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key unit and front door lock assembly
(driver side) connector.
3.
Check continuity between Intelligent Key unit harness connector
M99 terminal 28 and front door lock assembly (driver side) har-
ness connector D10 terminal 1.
4.
Check continuity between Intelligent Key unit harness connector
M99 terminal 28 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between Intelligent Key unit and front door lock assembly (driver side).
Driver
5 (B/W) - 1 (B/W)
: Continuity should exist.
Passenger
25 (P/L) - 1 (P/L)
: Continuity should exist.
Back door
29 (G/W) - 1 (G/R)
: Continuity should exist.
1 - Ground
: Continuity should not exist.
PIIA6747E
Con-
nector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
M99
28 (SB)
Ground
Driver side door lock is
locked
5
Driver side door lock is
unlocked
0
PIIA6802E
28 (SB) – 1 (G/Y)
: Continuity should exist.
28 (SB) – Ground
: Continuity should not exist.
PIIB4610E
BL-146
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
3.
CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between front door lock assembly (driver side) harness connector D10 terminal 5 and
ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
4.
CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1.
Connect Intelligent Key unit harness connector.
2.
Check voltage between Intelligent Key unit harness connector M99 terminal 28 and ground.
OK or NG
OK
>> Replace front door lock assembly (driver side).
NG
>> Replace Intelligent Key unit.
Check Intelligent Key Warning Buzzer (Inside)
AIS006CM
1.
CHECK INTELLIGENT KEY WARNING BUZZER (INSIDE) POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key warning buzzer (inside) connector.
3.
Check voltage between Intelligent Key warning buzzer (inside) harness connector M100 terminal 1 and
ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace Intelligent Key warning buzzer (inside)
power supply circuit.
5 (B) – Ground
: Continuity should exist.
PIIA6804E
28 (SB) – Ground
: Approx. 5V
PIIA6802E
1 (Y/R) - Ground
: Battery voltage
PIIB4611E
INTELLIGENT KEY SYSTEM
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Revision: 2005 August
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2.
CHECK INTELLIGENT KEY WARNING BUZZER (INSIDE) CIRCUIT
1.
Disconnect Intelligent Key unit connector.
2.
Check continuity between Intelligent Key unit harness connector
M99 terminal 30 and Intelligent Key warning buzzer (inside) har-
ness connector M100 terminal 3.
3.
Check continuity between Intelligent Key unit harness connector
M99 terminal 30 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between Intelligent Key warn-
ing buzzer (inside) and Intelligent Key unit.
3.
CHECK INTELLIGENT KEY WARNING BUZZER (INSIDE) OPERATION
Connect battery power supply to Intelligent Key warning buzzer (inside) harness connector M100 terminals 1
and 3, and check the operation.
OK or NG
OK
>> Intelligent Key warning buzzer (inside) is OK.
NG
>> Replace Intelligent Key warning buzzer (inside).
Check Intelligent Key Warning Buzzer (ENGINE ROOM)
AIS006CN
1.
CHECK INTELLIGENT KEY WARNING BUZZER (ENGINE ROOM) POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key warning buzzer (engine room) connector.
3.
Check voltage between Intelligent Key warning buzzer (engine room) harness connector E45 terminal 1
and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace Intelligent Key warning buzzer (engine
room) power supply circuit.
30 (LG/B) - 3 (LG/B)
: Continuity should exist.
30 (LG/B) - Ground
: Continuity should not exist.
PIIB4612E
1 (BAT+) - 3 (BAT-)
: the buzzer sounds
PIIB4613E
1 (Y/R) - Ground
: Battery voltage
PIIB4275E
BL-148
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
2.
CHECK INTELLIGENT KEY WARNING BUZZER (ENGINE ROOM) CIRCUIT
1.
Disconnect Intelligent Key unit connector.
2.
Check continuity between Intelligent Key unit harness connector
M99 terminal 4 and Intelligent Key warning buzzer (engine
room) harness connector E45 terminal 3.
3.
Check continuity between Intelligent Key warning buzzer
(engine room) harness connector E45 terminal 3 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between Intelligent Key warn-
ing buzzer (engine room) and Intelligent Key unit.
3.
CHECK INTELLIGENT KEY WARNING BUZZER (ENGINE ROOM) OPERATION
Connect battery power supply to Intelligent Key warning buzzer (engine room) harness connector E45 termi-
nals 1 and 3, and check the operation.
OK or NG
OK
>> Intelligent Key warning buzzer (engine room) is OK.
NG
>> Replace Intelligent Key warning buzzer (engine room).
4 (GR) - 3 (GR)
: Continuity should exist.
3 (GR) - Ground
: Continuity should not exist.
PIIB4276E
1 (BAT+) - 3 (BAT-)
: the buzzer sounds
PIIB4277E
INTELLIGENT KEY SYSTEM
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Revision: 2005 August
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Check Outside Key Antenna
AIS006CO
CHECK OUTSIDE KEY ANTENNA (DRIVER SIDE)
1.
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect outside key antenna (door mirror) connector.
3.
Check signal between Intelligent Key unit connector and ground
with oscilloscope.
4.
Disconnect outside key antenna (rear door LH) connector.
5.
Connect outside key antenna (door mirror) connector.
6.
Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK
>> Check condition of harness and connector.
NG
>> GO TO 2.
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Driver side
19
(P)
Ground
Request
switch is
pushed
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Driver side
19
(P)
Ground
Request
switch is
pushed
PIIB4615E
SIIA1910J
SIIA1910J
BL-150
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
2.
CHECK OUTSIDE KEY ANTENNA CIRCUIT
1.
Disconnect Intelligent Key unit connector and outside key antenna (door mirror) connector.
2.
Check continuity between each outside key antenna harness connector and Intelligent Key unit connec-
tor.
3.
Check continuity between each outside key antenna connector
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace harness between outside key antenna and
Intelligent Key unit.
Item
Con-
nector
Terminal
(Wire color)
Con-
nector
Terminal
(Wire color)
Continuity
Door mirror
(driver side)
D2
1 (P)
M99
19 (P)
Yes
12 (V)
20 (V)
Rear door LH
D57
1 (P)
19 (P)
2 (V)
20 (V)
Item
Connector
Terminal
Continuity
Door mirror
(driver side)
D2
1 (P)
Ground
No
12 (V)
Rear door LH
D57
1 (P)
2 (V)
PIIB4616E
INTELLIGENT KEY SYSTEM
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Revision: 2005 August
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3.
CHECK OUTSIDE KEY ANTENNA POWER SUPPLY
1.
Replace outside key antenna (door mirror). (New antenna or other antenna)
2.
Connect Intelligent Key unit connector and outside key antenna (door mirror) connector.
3.
Check signal between Intelligent Key unit connector and ground
with oscilloscope.
4.
Disconnect outside key antenna (door mirror) connector.
5.
Replace outside key antenna (rear door LH). (New antenna or other antenna)
6.
Connect outside key antenna (rear door LH) connector.
7.
Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK
>> Check condition of harness and connector.
NG
>> Replace malfunction outside key antenna.
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Driver side
19
(P)
Ground
Request
switch is
pushed
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Driver side
19
(P)
Ground
Request
switch is
pushed
PIIB4615E
SIIA1910J
SIIA1910J
BL-152
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
CHECK OUTSIDE KEY ANTENNA (PASSENGER SIDE)
1.
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect outside key antenna (door mirror) connector.
3.
Check signal between Intelligent Key unit connector and ground
with oscilloscope.
4.
Disconnect outside key antenna (rear door RH) connector.
5.
Connect outside key antenna (door mirror) connector.
6.
Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK
>> Check condition of harness and connector.
NG
>> GO TO 2.
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Passenger
side
37
(LG)
Ground
Request
switch is
pushed
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Passenger
side
37
(LG)
Ground
Request
switch is
pushed
PIIB4617E
SIIA1910J
SIIA1910J
INTELLIGENT KEY SYSTEM
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Revision: 2005 August
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2.
CHECK OUTSIDE KEY ANTENNA CIRCUIT
1.
Disconnect Intelligent Key unit connector and outside key antenna (door mirror) connector.
2.
Check continuity between each outside key antenna harness connector and Intelligent Key unit connec-
tor.
3.
Check continuity between each outside key antenna connector
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace harness between outside key antenna and
Intelligent Key unit.
Item
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
Continuity
Door mirror
(passenger
side)
D32
1 (LG)
M99
37 (LG)
Yes
12 (B/Y)
38 (B/Y)
Rear door
RH
D77
1 (LG)
37 (LG)
2 (B/Y)
38 (B/Y)
Item
Connector
Terminal
Continuity
Door mirror
(passenger side)
D32
1 (LG)
Ground
No
12 (B/Y)
Rear door RH
D77
1 (LG)
2 (B/Y)
PIIB4618E
BL-154
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
3.
CHECK OUTSIDE KEY ANTENNA POWER SUPPLY
1.
Replace outside key antenna (door mirror). (New antenna or other antenna)
2.
Connect Intelligent Key unit connector and outside key antenna (door mirror) connector.
3.
Check signal between Intelligent Key unit connector and ground
with oscilloscope.
4.
Disconnect outside key antenna (door mirror) connector.
5.
Replace outside key antenna (rear door RH). (New antenna or other antenna)
6.
Connect outside key antenna (rear door RH) connector.
7.
Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK
>> Check condition of harness and connector.
NG
>> Replace malfunction outside key antenna.
CHECK OUTSIDE KEY ANTENNA (REAR BUMPER)
1.
CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK
>> Check condition of harness and connector.
NG
>> GO TO 2.
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Passenger
side
37
(LG)
Ground
Request
switch is
pushed
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Passenger
side
37
(LG)
Ground
Request
switch is
pushed
PIIB4617E
SIIA1910J
SIIA1910J
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Rear
bumper
17
(W/L)
Ground
Request
switch is
pushed
PIIB4619E
SIIA1910J
INTELLIGENT KEY SYSTEM
BL-155
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Revision: 2005 August
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2.
CHECK OUTSIDE KEY ANTENNA CIRCUIT
1.
Disconnect Intelligent Key unit connector and outside key antenna (rear bumper) connector.
2.
Check continuity between outside key antenna (rear bumper) connector and Intelligent Key unit connec-
tor.
3.
Check continuity between outside key antenna harness connec-
tor and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Replace harness between outside key antenna and Intelligent Key unit.
3.
CHECK OUTSIDE KEY ANTENNA POWER SUPPLY
1.
Replace outside key antenna (rear bumper). (New antenna or other antenna)
2.
Connect Intelligent Key unit connector and outside key antenna connector.
3.
Check signal between Intelligent Key unit connector and ground
with oscilloscope.
OK or NG
OK
>> Replace outside key antenna (rear bumper).
NG
>> Replace Intelligent Key unit.
Item
Connec-
tor
Terminal
(Wire color)
Connec-
tor
Terminal
(Wire color)
Continuity
Rear
bumper
B38
1 (W)
M99
17 (W)
Yes
2 (B)
18 (B)
Item
Connector
Terminal
Continuity
Rear bumper
B38
1 (W)
Ground
No
2 (B)
PIIB4620E
Con-
nec-
tor
Item
Terminal
(wire color)
Condi-
tion
Signal
(Reference value)
(+)
(-)
M99
Rear
bumper
17
(W)
Ground
Request
switch is
pushed
PIIB4619E
SIIA1910J
BL-156
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
Check Inside Key Antenna
AIS006CP
1.
CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL 1
1.
Turn ignition switch OFF.
2.
Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK
>> Inside key antenna is OK.
NG
>> GO TO 2.
2.
CHECK INSIDE KEY ANTENNA
1.
Disconnect Intelligent Key unit connector and inside key antenna connectors.
2.
Check continuity between inside key antenna harness connector M102 (Console), M109 (dashboard),
B122 (luggage room) terminals 1, 2 and Intelligent Key unit harness connector M99 terminals 13, 14, 15,
16, 35 and 36.
3.
Check continuity between inside key antenna harness connec-
tor M102 (Console), M109 (dash board), B122 (luggage room) terminals 1, 2 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between inside key antenna and Intelligent Key unit.
Con-
nec-
tor
Item
Terminal
(Wire color)
Condi-
tion
Signal (V)
(Reference value)
(+)
(–)
M99
Luggage
room
13 (Y)
Ground
Ignition
switch
is
pushed.
Console
15 (L)
Dash-
board
35 (O)
PIIA6753E
SIIA1910J
Item
Connec-
tor
Terminal
(Wire color)
Connec-
tor
Terminal
(Wire color)
Continuity
Luggage room
B122
1 (W)
M99
13 (Y)
Yes
2 (B)
14 (BR)
Console
M102
1 (B/W)
15 (L)
2 (L)
16 (B/W)
Dashboard
M109
1 (O)
35 (O)
2 (B/P)
36 (B/P)
Item
Connector
Terminal
(Wire color)
Continuity
Luggage room
B122
1 (W)
Ground
No
2 (B)
Console
M102
1 (B/W)
2 (L)
Dashboard
M109
1 (O)
2 (B/P)
PIIB4614E
INTELLIGENT KEY SYSTEM
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Revision: 2005 August
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3.
CHECK INSIDE KEY ANTENNA POWER SIGNAL 2
1.
Replace inside key antenna. (New antenna or other antenna)
2.
Connect Intelligent key unit connector.
3.
Check signal between Intelligent Key unit connector and ground
with oscilloscope.
OK or NG
OK
>> Replace inside key antenna.
NG
>> Replace Intelligent key unit.
Check Steering Lock Unit
AIS006CQ
1.
CHECK STEERING LOCK UNIT POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect steering lock unit connector.
3.
Check voltage between steering lock unit harness connector M101 terminal 1 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace steering lock unit power supply circuit.
Con-
nec-
tor
Item
Terminal
(Wire color)
Condi-
tion
Signal (V)
(Reference value)
(+)
(–)
M99
Luggage
room
13 (Y)
Ground
Ignition
switch
is
pushed.
Console
15 (L)
Dash-
board
35 (O)
PIIA6753E
SIIA1910J
1 (G/Y) - Ground
: Battery voltage
PIIA6797E
BL-158
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
2.
CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT
1.
Disconnect Intelligent Key unit connector.
2.
Check continuity between Intelligent Key unit harness connector M99 terminals 1, 31, 32 and steering
lock unit connector M101 terminals 2, 3, 4.
3.
Check continuity between steering lock unit harness connector
M99 terminals 2, 3, 4 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between steering lock unit and Intelligent Key unit.
3.
CHECK STEERING LOCK UNIT GROUND CIRCUIT
1.
Connect intelligent key unit and steering lock unit connectors.
2.
Check continuity between steering lock unit harness connector M101 terminal 4 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Replace intelligent key unit.
4.
CHECK STEERING LOCK COMMUNICATION CIRCUIT
Check voltage between steering lock unit connector M101 terminal 2 and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Replace intelligent key unit.
1 (L/Y) - 2 (L/Y)
: Continuity should exist.
31 (G/R) - 4 (G/R)
: Continuity should exist.
32 (L/O) - 3 (L/O)
: Continuity should exist.
2 (L/Y) - Ground
: Continuity should not exist.
3 (L/O) - Ground
: Continuity should not exist.
4 (G/R) - Ground
: Continuity should not exist.
PIIA6799E
4 (G/R) - Ground
: Continuity should exist.
PIIB4621E
2 (L/Y) - Ground
: Approx. 5V
PIIB4622E
INTELLIGENT KEY SYSTEM
BL-159
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Revision: 2005 August
2005 Murano
5.
CHECK STEERING LOCK UNIT SIGNAL
Immediately after pushing ignition switch, use an oscilloscope to check signal between steering lock unit con-
nector M101 terminal 3 and ground.
OK or NG
OK
>> Replace steering lock unit.
NG
>> Replace Intelligent Key unit.
Check Stop Lamp Switch
AIS006CR
1.
CHECK INTELLIGENT KEY UNIT INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect Intelligent Key unit connector.
3.
Check voltage between Intelligent Key unit harness connector
M99 terminal 26 and ground.
OK or NG
OK
>> Stop lamp switch is OK.
NG
>> GO TO 2.
2.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
Check voltage between stop lamp switch harness connector E116
terminal 1 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between stop lamp switch
power supply circuit and fuse.
Con-
nector
Terminal
(Wire color)
Condition
Signal (V)
(Reference value)
(+)
(–)
M101
3 (L/O)
Ground
Ignition
switch is
pushed
PIIB4623E
SIIA1911J
Connector
Terminal
(wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
M99
26 (R/G)
Ground
Brake pedal
depressed
Battery volt-
age
Brake pedal
released
0
PIIB4346E
1 (R/Y) - Ground
: Battery voltage
PIIB4624E
BL-160
INTELLIGENT KEY SYSTEM
Revision: 2005 August
2005 Murano
3.
CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop lamp switch connector E116 terminal
1 and 2.
OK or NG
OK
>> GO TO 4.
NG
>> Replace stop lamp switch.
4.
CHECK STOP LAMP SWITCH CIRCUIT
1.
Check continuity between Intelligent Key unit harness connector
M99 terminal 26 and stop lamp switch harness connector E116
terminal 2.
2.
Check continuity between Intelligent Key unit harness connector
M99 terminal 26 and ground.
OK or NG
OK
>> Check condition of harness and connector.
NG
>> Repair or replace harness.
Check Park Position Switch
AIS006CS
1.
CHECK PARK POSITION SWITCH INPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Check voltage between Intelligent Key unit harness connector and ground.
OK or NG
OK
>> Park position switch circuit is OK.
NG
>> GO TO 2.
Connector
Terminal
Condition
Continuity
E116
1
2
Brake pedal depressed
Yes
Brake pedal not
depressed
No
PIIB4625E
26 (R/G) - 2 (R/G)
: Continuity should exist.
26 (R/G) - Ground
: Continuity should not exist.
PIIB4626E
Connector
Terminal
(Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
M99
39 (L/W)
Ground
Selector lever is in “P” position
0
Other than above
Battery voltage
PIIA6805E
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