Infiniti Q45 (FY33). Manual — part 326
IVMS COMMUNICATION DIAGNOSES RESULTS LIST —
3
Diagnostic item
Number of malfunc-
tioning LCU
CONSULT-II diagno-
sis result
On board diagnosis
(Mode 1) code No.
Expected cause
Service procedure
Sleep control of
LCU is malfunction-
ing
One
POWER WINDOW
C/U-DR
[SLEEP]
POWER WINDOW
C/U-AS
[SLEEP]
POWER WINDOW
C/U-RR
[SLEEP]
POWER WINDOW
C/U-RL
[SLEEP]
POWER SEAT
C/U-DR
[SLEEP]
—
1. Malfunctioning
LCU
1. Replace LCU.*
Two or more
Combination of
above results
—
1. Malfunctioning
LCU
1. Replace LCU.*
All of above results
—
1. Malfunctioning
BCM
2. Malfunctioning all
LCUs
1. Replace BCM.*
2. Replace all
LCUs.*
*: Before replacing BCM/LCU, clear the memory of diagnoses result and perform communication diagnoses again.
If the diagnoses result is still NG, replace BCM/LCU.
NOTE: When CONSULT-II indicates [PAST COMM FAIL] or [PAST NO RESPONSE], erase the memory and perform communication
diagnoses again.
To erase the memory, perform the procedure below.
Erase the memory by CONSULT-II or turn the ignition to “OFF” position and remove 7.5A fuse [No.
14
, located in the fuse
block (J/B)].
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
IVMS (LAN)
CONSULT-II (Cont’d)
EL-295
SEL598U
On board Diagnosis
ON BOARD DIAGNOSTIC RESULTS INDICATOR LAMP
Front map lamps and step lamps (all seats) act as the indicators
for the on board diagnosis Mode I, II and III. Seat memory indica-
tor-1 and 2 act as the indicators for the on board diagnosis Mode
IV. These lamps blink simultaneously in response to diagnostic
results.
SEL071V
ON BOARD DIAGNOSTIC FUNCTION
Mode
Function
Self-diagnostic results indicator lamp
Reference
page
Interior lamp
Step lamps
(all seats)
Automatic
drive positioner
indicator lamps
Mode I
IVMS commu-
nication diag-
nosis
Diagnosing any abnormality or
inability of communication
between BCM and LCUs
(DATA LINES A-1, A-2 and
A-3).
X
X
—
Mode II
Switch monitor
Monitoring conditions of
switches connected to BCM
and LCUs.
X
X
—
Mode III
Power door
lock self-diag-
nosis
—
X
X
—
Mode IV
Automatic
drive positioner
self-diagnosis
—
—
—
X
X: Applicable
—: Not applicable
NOTE:
I
When on board diagnosis Mode I, II or III is operating, all systems under IVMS control do not oper-
ate.
I
When on board diagnosis Mode IV is operating, automatic drive positioner does not operate.
I
The step lamp of malfunctioning LCU does not blink.
IVMS (LAN)
EL-296
SEL567U
On board Diagnosis — Mode I (IVMS
communication diagnosis)
HOW TO PERFORM MODE I
Condition
I
Ignition switch: OFF
I
Lighting switch: OFF
I
Rear window defogger switch: OFF
I
Doors: Closed
I
Interior lamp switch: AUTO
I
Driver side map lamp switch: OFF
I
Passenger side map lamp switch: OFF
I
Selector lever: “P” range
Turn ignition switch “ON”.
Return ignition switch to “ACC” and press rear window defogger switch
more than 10 times during 10 seconds.
Self-diagnostic results indicator lamps should turn on.
Rear window defogger switch holds OFF.
Turn ignition switch “ON” within 5 seconds after the indicator lamps turn on.
Indicator lamp turn off.
After a second
Mode I is performed.
Turn ignition switch “OFF”.
or
Drive the vehicle more than 7 km/h (4 MPH).
DIAGNOSIS END*
*: Diagnosis ends after self-diagnostic results have been indicated for 10 min-
utes if left unattended.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
IVMS (LAN)
H
H
H
H
H
H
H
H
H
EL-297
DESCRIPTION
In this mode, a malfunction code is indicated by the number of flashes from the front map lamps and step
lamps as shown below:
SEL471T
After indicator lamp turns on for 2 seconds then off for 2 seconds, it flashes [cycling ON (0.5 sec.)/OFF (0.5
sec.)] to indicate a malfunction code of the first digit. Then, 1 second after indicator lamp turns off, it again
flashes [cycling ON (0.5 sec.)/OFF (0.5 sec.)] to indicate a malfunction code of the second digit.
For example, the indicator lamp goes on and off for 0.5 seconds twice and after 1.0 seconds, it goes on and
off for 0.5 seconds four times. This indicates malfunction code “24”.
MALFUNCTION CODE TABLE
Code No.
Malfunctioning LCU
Detected items
Diagnostic procedure
24
Driver door control unit
(LCU01)
Malfunctioning communication
Refer to CONSULT-II DIAGNOSTIC CHART,
“COMM FAIL” (EL-293).
25
No response from data line A-1
Refer to CONSULT-II DIAGNOSTIC CHART,
“NO RESPONSE” (EL-294).
34
Passenger door control
unit (LCU02)
Malfunctioning communication
Refer to CONSULT-II DIAGNOSTIC CHART,
“COMM FAIL” (EL-293).
35
No response from data line A-2
Refer to CONSULT-II DIAGNOSTIC CHART,
“NO RESPONSE” (EL-294).
41
Rear RH door control unit
(LCU03)
Malfunctioning communication
Refer to CONSULT-II DIAGNOSTIC CHART,
“COMM FAIL” (EL-293).
42
No response from data line A-1
Refer to CONSULT-II DIAGNOSTIC CHART,
“NO RESPONSE” (EL-294).
44
Rear LH door control unit
(LCU04)
Malfunctioning communication
Refer to CONSULT-II DIAGNOSTIC CHART,
“COMM FAIL” (EL-293).
45
No response from data line A-2
Refer to CONSULT-II DIAGNOSTIC CHART,
“NO RESPONSE” (EL-294).
47
Driver’s seat control unit
(LCU05)
Malfunctioning communication
Refer to CONSULT-II DIAGNOSTIC CHART,
“COMM FAIL” (EL-293).
48
No response from data line A-3
Refer to CONSULT-II DIAGNOSTIC CHART,
“NO RESPONSE” (EL-294).
11
No malfunction
—
IVMS (LAN)
On board Diagnosis — Mode I (IVMS
communication diagnosis) (Cont’d)
EL-298
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