Infiniti F50. Manual — part 764
AUTOMATIC DRIVE POSITIONER
SE-47
C
D
E
F
G
H
J
K
L
M
A
B
SE
COMMUNICATION DIAGNOSIS
Check the communication between BCM and each local control unit (LCU).
Operation Procedure
Diagnosis Result Display
●
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.
●
To indicate the diagnosis trouble code, the indicator lamps illuminate or flash.
●
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.
●
If there are multiple malfunctioning parts, the lamps indicate them in sequence from the smallest diagno-
sis trouble code.
●
The diagnosis results repeat until the diagnosis is cancelled.
●
If a malfunction is indicated, carry out the communication diagnosis again to check that the same diagno-
sis trouble code is indicated.
Diagnosis Trouble Code Indication Example
PIIA2871E
SIIA0410E
SE-48
AUTOMATIC DRIVE POSITIONER
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.
Carry out either disconnect BCM battery power supply or erase memory with CONSULT-II.
●
With the battery connected, if the local control unit (LCU) connector is disconnected and left for approximately 1 minute, the BCM
stores "NO RESPONSE" record.
Cancel Of Communication Diagnosis
If one of the following conditions is satisfied, the communication diagnosis is cancelled.
●
When the ignition switch is turned OFF.
●
The vehicle speed becomes 7 km/h (4 MPH) or higher.
●
Ten minutes have passed since the diagnostic result indication start without no diagnosis cancel opera-
tion.
COMMUNICATION SYSTEM A
1.
CHECK BCM
Replace the BCM with a known-good one, and carry out the communication diagnosis. Refer to
.
OK or NG
OK
>> Replace BCM
NG
>> GO TO 2.
Malfunctioning
item
Display unit
CONSULT–II IVMS communication diagnosis
content
Self-diagnosis
trouble code No.
Malfunctioning system
and reference
COMM DATA
One LCU is dis-
played.
POWER WINDOW C/U–DR "COMMDATA"
24
Replace the displayed
LCU.
DOOR MIRROR C/U–RH "COMMDATA"
27
DOOR MIRROR C/U–LH "COMMDATA"
37
POWER SEAT C/U–DR "COMMDATA"
47
Multiple LCUs
are displayed
BCM
"COMMFAIL1","COMMFAIL2"
Displays in
order of 24
→
27
→
37
→
47
→
and cycles from
24.
Communication system A:
Refer to
NO
RESPONSE
One LCU is dis-
played.
POWER WINDOW C/U–DR "NORESPONSE"
25
Communication system B:
Refer to
DOOR MIRROR C/U–RH "NORESPONSE"
28
DOOR MIRROR C/U–LH "NORESPONSE"
38
POWER SEAT C/U–DR "NORESPONSE"
48
Multiple LCUs
are displayed
BCM/HARNESS
Displays in
order of
25
→
28
→
38
→
4
8 and cycles
from 25.
Communication system
C: Refer to
.
SLEEP malfunc-
tion
One LCU is dis-
played.
POWER WINDOW C/U–DR "SLEEP"
No self-diagno-
sis 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-diagno-
sis function
AUTOMATIC DRIVE POSITIONER
SE-49
C
D
E
F
G
H
J
K
L
M
A
B
SE
2.
CHECK LCU
1.
Replace with the previously installed BCM.
2.
Replace the LCU with a known-good one, and carry out the communication diagnosis. Refer to
OK or NG
OK
>> Replace LCU
NG
>> Repair the harness between the LCU and BCM.
COMMUNICATION SYSTEM B
1.
CHECK HARNESS CONNECTOR
Check 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.
CHECK LCU
Replace the malfunctioning LCU with a known-good one, and carry out the communication diagnosis. Refer to
SE-47, "COMMUNICATION DIAGNOSIS"
.
OK or NG
OK
>> Replace LCU
NG
>> Repair the harness between the indicated LCU and BCM.
COMMUNICATION SYSTEM C
1.
CHECK HARNESS CONNECTOR
Check terminals (at the control unit and harness) on BCM and LCU for disconnection, bend, poor connection,
and other malfunctions.
OK or NG
OK
>> GO TO 2.
NG
>> Repair the terminals and connectors.
2.
CHECK BCM
Replace the malfunctioning BCM with a known-good one, and carry out the communication diagnosis. Refer
to
SE-47, "COMMUNICATION DIAGNOSIS"
OK or NG
OK
>> Replace BCM
NG
>> Repair the harness between the LCU and BCM control.
SE-50
AUTOMATIC DRIVE POSITIONER
SWITCH MONITOR
Perform the diagnosis for the switch system input to each control unit.
Operation Procedure
Diagnosis Result Display
●
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.
●
If a malfunction is detected, no indicator lamp and buzzer react.
Diagnosis Item
The status of the switch (except the ignition switch, interior lamp switch, and map lamp switch) input to each
control unit can be monitored.
PIIA2869E
PIIA0185E
Control unit
Item
BCM
Detention switch
Steering wheel position switch (telescopic switch and tilt switch)
Seat memory switch (memory switch 1, memory switch 2, and setting switch)
Driver door switch
Door mirror remote control switch
Driver seat control unit
Slide switch (FR/RR)
Reclining switch (FR/RR)
Front end lifting switch (UP/DOWN)
Rear end lifting switch (UP/DOWN)
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