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2. CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect back door switch and BCM connector.
3. Check continuity between BCM harness connector B83 terminal 58 and back door switch harness con-
nector T12 terminal 1.
4. Check continuity between BCM harness connector B83 terminal
58 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace back door switch harness.
3. CHECK BACK DOOR SWITCH
Check continuity between back door switch terminals 1 and 3.
OK or NG
OK >> GO TO 4.
NG >> Replace back door switch.
4. CHECK BACK DOOR SWITCH GROUND CIRCUIT
Check continuity between door switch harness connector T12 terminal 3 and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace back door switch harness.58 (R/W) - 1 (R/W) : Continuity should exist.
58 (R/W) - Ground : Continuity should not exist.
PIIB3794E
Connector Terminal Condition of back door switch Continuity
T12 1 3Open position Yes
Closed position No
PIIA4316E
3 (B) - Ground : Continuity should exist.
PIIA2490E
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Check Trunk Lid Lock Assembly (Trunk Room Lamp Switch) / For RoadsterNIS0001N
1. CHECK TRUNK LID LOCK ASSEMBLY (TRUNK ROOM LAMP SWITCH) INPUT SIGNAL
With CONSULT-III
Check trunk lid opener switch (“TRUNK OPN MNTR”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
*: When interior lamp battery saver control is in OFF. → Approx. 5V.
OK or NG
OK >> Trunk room lamp switch is OK.
NG >> GO TO 2.
2. CHECK TRUNK LID LOCK ASSEMBLY (TRUNK ROOM LAMP SWITCH) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly (trunk room lamp switch) and BCM connector.
3. Check continuity between BCM harness connector B83 terminal 57 and trunk lid lock assembly (trunk
room lamp switch) harness connector T47 terminal 3.
4. Check continuity between BCM harness connector B83 terminal
57 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace trunk lid lock assembly (trunk room
lamp switch) harness.
Monitor item Condition
TRNK OPN MNTROPEN : ON
CLOSE : OFF
Con-
nectorTe r m i n a l s
(Wire color)Condition of trunk lid lock
assembly (trunk room lamp
switch)Voltage [V]
(Approx.)
(+) (–)
B83 57 (R/W) GroundOpen 0
Close Battery voltage*
PIIB1266E
57 (R/W) - 3 (R/W) : Continuity should exist.
57 (R/W) - Ground : Continuity should not exist.
PIIB9170E
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3. CHECK TRUNK LID LOCK ASSEMBLY (TRUNK ROOM LAMP SWITCH) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly (trunk room lamp switch) connector.
3. Check continuity between trunk lid lock assembly (trunk room lamp switch) connector T47 terminal 1 and
ground.
OK or NG
OK >> Check trunk lid lock assembly (trunk room lamp switch).
NG >> Repair or replace trunk lid lock assembly (trunk room
lamp switch) harness.
Check Key Switch NIS0001O
1. CHECK KEY SWITCH
Check continuity key switch terminals 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace key switch.
2. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M90 terminal
37 and key switch harness connector M25 terminal 1.
3. Check continuity between BCM harness connector M90 terminal
37 and ground.
OK or NG
OK >> Check the following.
10A fuse [No.21, located in the fuse block (J/B)]
Harness for open or short between key switch and fuse
NG >> Repair or replace harness.1 (B) - Ground : Continuity should exist.
PIIB9171E
Connector Terminals Condition of key switch Continuity
M25 1 2Inserted Yes
Removed No
PIIA2627E
37 (B/R) - 1 (B/R) : Continuity should exist.
37 (B/R) - Ground : Continuity should not exist.
PIIB1258E
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Check IPDM E/R Operation NIS0001P
1. CHECK IPDM E/R INPUT SIGNAL
Check voltage between IPDM E/R connector E9 terminal 51 and ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 2.
2. CHECK IPDM E/R CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
3. Check continuity between IPDM E/R harness connector E9 terminal 51 and horn relay harness connector
E21 terminal 1.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Remote Keyless Entry Receiver NIS0001Q
1. CHECK MULTI-REMOTE CONTROL RECEIVER INPUT VOLTAGE
1. Remove key from ignition key cylinder.
2. Check signal between remote keyless entry receiver connector and ground with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.51 (G/B) – Ground : Battery voltage
PIIA6403E
1 (G/B) - 51(G/B) : Continuity should exist.
PIIA6404E
Con-
nectorTerminal
(Wire color)
Condition Signal
(Reference value)
(+) (–)
M78 4 (Y)Grou
ndKey is inserted in
IGN key cylinder 0
All door closed
PIIA2835E
OCC3881D
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2. CHECK REMOTE KEYLESS ENTRY RECEIVER HARNESS
1. Turn ignition switch OFF.
2. Disconnect remote keyless entry receiver and BCM connector.
3. Check continuity between remote keyless entry receiver connector M78 terminal 4 and BCM connector
M90 terminal 19.
4. Check continuity between remote keyless entry receiver connector M78 terminal 4 and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace the harness.
3. CHECK REMOTE KEYLESS ENTRY RECEIVER
1. Turn ignition switch OFF.
2. Check continuity between remote keyless entry receiver connector M78 terminal 1 and BCM connector
M90 terminal 18.
3. Check continuity between remote keyless entry receiver connector M78 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace the harness.4 (Y) - 19 (Y) : Continuity should exist.
4 (Y) - Ground : Continuity should not exist.
PIIA9630E
1 (B) - 18 (B) : Continuity should exist.
1 (B) - Ground : Continuity should not exist.
PIIA9631E
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TRUNK LID OPENER
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Terminals and Reference Value for BCMNIS0002P
Te r -
minalWire
colorItemSignal input/
outputConditionVoltage (V)
(Approx.)
18 BRemote keyless entry
receiver (Ground)—— 0
19 YRemote keyless entry
receiver (Power supply)OutputKey is inserted in IGN key cylinder 0
All door closed
20 LRemote keyless entry
receiver (Signal)InputKey is inserted in IGN key cylinder 0
Waiting
(All door closed)
When signal is received
(All door closed)
30 P Trunk lid opener switch InputTrunk lid opener
cancel switch is
ONTrunk lid opener
switch is ON0
Trunk lid opener
switch is OFF5
Driver side door is
lockedTrunk lid opener
cancel switch is
OFF5
39 L CAN – H Input/Output — —
40 P CAN – L Input/Output — —
42 GY Ignition switch (ON) Input Ignition switch ON or START position Battery voltage
52 B Ground — — 0
55 RPower source (Fusible
link)Input — Battery voltage
68 L/RTrunk lid opener release
output signalOutput Closed (OFF) → Opened (ON) 0 → Battery voltage
OCC3881D
OCC3879D
OCC3880D
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Trouble DiagnosisNIS0002R
TRUNK DOSE NOT OPEN WITH TRUNK LID OPENER SWITCH
1. CHECK TRUNK LID OPENER CANCEL SWITCH
Check trunk lid opener cancel switch position.
Ye s o r N o
Yes >> GO TO 2.
No >> Turn on trunk lid opener cancel switch.
2. CHECK TRUNK LID OPEN INPUT SIGNAL
1. Remove Key from ignition key cylinder.
2. Unlock driver side door.
3. Check voltage between BCM and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.
3. CHECK TRUNK LID OPEN OUTPUT SIGNAL
Check voltage between BCM and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace BCM. Refer to BCS-17, "
Removal and Installation of BCM" . Is trunk lid opener cancel switch in ON posi-
tion?
ConnectorTerminal
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M90 30 (P) GroundTrunk lid opener switch ON 0
Trunk lid opener switch OFF 5
PIIB9174E
ConnectorTerminal
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B83 68 (L/R) GroundTrunk lid opener switch
ONBattery voltage
Trunk lid opener switch
OFF0
PIIB1270E
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11 . CHECK DRIVER SIDE DOOR LOCK ACTUATOR GROUND CIRCUIT
Check continuity between driver side door lock actuator switch har-
ness connector D11 terminal 4 and ground.
OK or NG
OK >> Replace driver side door lock actuator.
NG >> Repair harness or connector.
TRUNK DOSE NOT CLOSE
1. CHECK TRUNK LID OPEN INPUT SIGNAL
1. Remove Key from ignition key cylinder.
2. Turn on trunk lid opener cancel switch.
3. Unlock driver side door.
4. Check voltage between BCM and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace BCM.
2. CHECK TRUNK LID OPENER CANCEL SWITCH
1. Disconnect trunk lid opener cancel switch.
2. Check continuity between trunk lid opener cancel switch har-
ness connector B71 terminals 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace trunk lid opener cancel switch.4 (B) - ground : Continuity should exist.
PIIA7876E
ConnectorTerminal
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M90 30 (P) GroundTrunk lid opener switch ON 0
Trunk lid opener switch OFF 5
PIIB1269E
TerminalsTrunk lid opener cancel
switch conditionContinuity
12ON Yes
OFF No
PIIA7871E