Infiniti Q45. Manual — part 627
REVERSE INTERLOCK DOOR MIRROR SYSTEM
GW-101
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On Board Diagnosis
NIS00104
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BCM can check each local control unit (LCU), switches, loads, and malfunctions in communication with
the self-diagnosis.
DIAGNOSIS ITEM
COMMUNICATION DIAGNOSIS
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Check the communication between BCM and each local control unit (LCU).
Operation Procedure
Diagnosis Result Display
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The indicator lamps (the map lamp and step lamp) turn ON (illuminate) for 2 seconds and OFF (go off) for
2 seconds to indicate that the diagnosis has started, then indicate the diagnosis trouble code.
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To indicate the self–diagnosis trouble code, the indicator lamps illuminate or flash.
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At first, the lamps indicate the second place by ON/OFF with 0.5 second-interval, then OFF for 1.5 sec-
onds. Next, they indicate the first place by ON/OFF with 0.5 second interval.
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If there are multiple malfunctioning parts, the lamps indicate them in sequence from the smallest diagno-
sis trouble code.
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The diagnosis results repeat until the diagnosis is cancelled.
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If a malfunction is indicated, carry out the communication diagnosis again to check that the same diagno-
sis trouble code is indicated.
Diagnosis item
Description
Communication diagnosis
●
It can check the communication line between BCM and each LCU, and also each LCU,
for a communication error and malfunction.
Switch monitor
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It can check the switch systems which send data to BCM and each LCU for a malfunc-
tion.
Self-diagnosis for auto drive posi-
tioner
●
Diagnoses malfunctions in each motor and sensor in the electrical load parts of the
driver power seat system (sliding, reclining, and lifter [front/rear]), of the steering wheel
system (tilt, telescoping), and of door mirror.
PIIA3358E
GW-102
REVERSE INTERLOCK DOOR MIRROR SYSTEM
Diagnosis Trouble Code Indication Example
Trouble Diagnosis Chart
NOTE:
●
For a specific local control unit (LCU), either "PAST COMM DATA" or "PAST NO RESPONSE" may be displayed instead of the
above results. This is caused by the data record, so erase the records.
(The display only shows the incident records, they are not malfunctions caused during the diagnosis. One possible cause is that an
irreproducible incident occurred.)
●
Follow the steps below to erase the memory.
SIIA0410E
Malfunctioning
item
Display unit
CONSULT–II IVMS communication
diagnosis content
Self-diagnosis trou-
ble code No.
Malfunctioning system and
reference
COMM DATA
One LCU
is displayed.
POWER WINDOW C/U–DR
"COMM DATA"
24
Replace the displayed
LCU.
DOOR MIRROR C/U–RH
"COMM DATA"
27
DOOR MIRROR C/U–LH
"COMM DATA"
37
POWER SEAT C/U–DR
"COMM DATA"
47
Multiple LCUs
are displayed
BCM
"COMM FAIL1" ,"COMM FAIL2"
Displays in order of
24
→
27
→
37
→
47
and cycles from 24.
Communication system A:
Refer to
.
NO
RESPONSE
One LCU
is displayed.
POWER WINDOW C/U–DR
"NO RESPONSE"
25
Communication system B:
Refer to
.
DOOR MIRROR C/U–RH
"NO RESPONSE"
28
DOOR MIRROR C/U–LH
"NO RESPONSE"
38
POWER SEAT C/U–DR
"NO RESPONSE"
48
Multiple LCUs
are displayed
BCM/HARNESS
Displays in order of
25
→
28
→
38
→
48
and cycles from 25.
Communication system C:
Refer to
.
SLEEP malfunc-
tion
One LCU
is displayed.
POWER WINDOW C/U–DR "SLEEP"
No self-diagnosis
function
Replace the displayed
LCU.
DOOR MIRROR C/U–RH
"SLEEP"
DOOR MIRROR C/U–LH
"SLEEP"
POWER SEAT C/U–DR
"SLEEP"
Multiple LCUs
are displayed
All the above control units are displayed.
No self-diagnosis
function
Communication system A:
Refer to
.
REVERSE INTERLOCK DOOR MIRROR SYSTEM
GW-103
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Carry out either disconnect BCM battery power supply or erase memory with CONSULT-II.
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With the battery connected, if the local control unit (LCU) connector is disconnected and left for approximately 1 minute, BCM
stores "NO RESPONSE" record.
Cancel of Communication Diagnosis
If one of the following conditions are satisfied, the communication diagnosis is cancelled.
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When the ignition switch is turned OFF.
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The vehicle speed becomes 7 km/h (4 MPH) or higher.
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Ten minutes have passed since the diagnosis result indication start without no diagnosis cancel operation.
COMMUNICATION SYSTEM A
1.
BCM INSPECTION
Replace BCM with a known-good one, and carry out the communication diagnosis. Refer to
OK or NG
OK
>> Replace BCM
NG
>> GO TO 2.
2.
LCU INSPECTION
1.
Replace with the previously installed BCM.
2.
Replace LCU with a known-good one, and carry out the communication diagnosis. Refer to
OK or NG
OK
>> Replace LCU
NG
>> Perform the following.
●
Repair or replace harness.
●
Replace with the previously installed LCU.
COMMUNICATION SYSTEM B
1.
HARNESS CONNECTOR INSPECTION
Check the terminals (at the control unit and harness) on the malfunctioning LCU for disconnection, bend, poor
connection and other malfunctions.
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminals and connectors.
2.
LCU INSPECTION
Replace the malfunctioning LCU with a known-good one, and carry out the communication diagnosis. Refer to
GW-101, "COMMUNICATION DIAGNOSIS"
OK or NG
OK
>> Replace LCU
NG
>> Perform the following.
●
Repair or replace harness.
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Replace with the previously installed LCU.
GW-104
REVERSE INTERLOCK DOOR MIRROR SYSTEM
COMMUNICATION SYSTEM C
1.
HARNESS CONNECTOR INSPECTION
Check the terminals (at the control unit and harness) on BCM and LCU for disconnection, bend, poor connec-
tion, and other malfunctions.
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminals and connectors.
2.
BCM INSPECTION
Replace the malfunctioning BCM with a known-good one, and carry out the communication diagnosis. Refer
to
GW-101, "COMMUNICATION DIAGNOSIS"
.
OK or NG
OK
>> Replace BCM
NG
>> Perform the following.
●
Repair or replace harness.
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Replace with the previously installed BCM.
SWITCH MONITOR
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Carry out the diagnosis for the switch system input to each control unit.
Operation Procedure
Diagnosis Result Display
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Detects the status change (switch ON/OFF operation) of the switch to be checked, and turns on/off the
indicator lamps (the map lamp and step lamp). Also sounds the buzzer (the key remainder and light
remainder) for 0.5 seconds.
PIIA3356E
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