Nissan Murano Z51 (2008 year). Manual - part 91
BCM (BODY CONTROL MODULE)
DEF-67
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
HIGH FLASHER OPERATION
BCM detects the turn signal lamp circuit status by the current value.
BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn signal
lamp operating.
NOTE:
The blinking speed is normal while activating the hazard warning lamp.
FAIL-SAFE CONTROL BY RAIN SENSOR MALFUNCTION
• BCM judges the rain sensor serial link error by the rain sensor serial link condition and detects the rain sen-
sor malfunction by rain sensor malfunction signal.
• When BCM detects the rain sensor serial link error or the rain sensor malfunction while front wiper AUTO
operation, BCM operates a fail-safe control.
NOTE:
If rain sensor malfunction is detected when ignition switch is turned OFF
⇒
ON and front wiper switch is INT/
AUTO position, BCM operates a fail-safe control.
REAR WIPER MOTOR PROTECTION
BCM detects the rear wiper stopping position according to the rear wiper stop position signal.
When the rear wiper stop position signal does not change for more than 5 seconds while driving the rear
wiper, BCM stops power supply to protect the rear wiper motor.
Condition of cancellation
1.
More than 1 minute is passed after the rear wiper stop.
B2607: S/L RELAY
Inhibit engine cranking
500 ms after the following CAN signal communication status be-
comes consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)
B2608: STARTER RELAY
Inhibit engine cranking
500 ms after the following signal communication status becomes
consistent
• Starter motor relay control signal
• Starter relay status signal (CAN)
B2609: S/L STATUS
• Inhibit engine cranking
• Inhibit steering lock
When the following steering lock conditions agree
• BCM steering lock control status
• Steering lock condition No. 1 signal status
• Steering lock condition No. 2 signal status
B260A: IGNITION RELAY
Inhibit engine cranking
500 ms after the following conditions are fulfilled
• IGN relay (IPDM E/R) control signal: OFF (Battery voltage)
• Ignition ON signal (CAN to IPDM E/R): OFF (Request signal)
• Ignition ON signal (CAN from IPDM E/R): OFF (Condition signal)
B260F: ENG STATE SIG LOST
Maintains the power supply
position attained at the time
of DTC detection
When any of the following conditions are fulfilled
• Power position changes to ACC
• Receives engine status signal (CAN)
B2612: S/L STATUS
• Inhibit engine cranking
• Inhibit steering lock
When any of the following conditions are fulfilled
• Steering lock unit status signal (CAN) is received normally
• The BCM steering lock control status matches the steering lock
status recognized by the steering lock unit status signal (CAN
from IPDM E/R)
B2617: STARTER RELAY CIRC
Inhibit engine cranking
1 second after the starter motor relay control inside BCM becomes
normal
B2618: BCM
Inhibit engine cranking
1 second after the ignition relay (IPDM E/R) control inside BCM be-
comes normal
B2619: BCM
Inhibit engine cranking
1 second after the steering lock unit power supply output control in-
side BCM becomes normal
B261E: VEHICLE TYPE
Inhibit engine cranking
BCM initialization
B26E9: S/L STATUS
• Inhibit engine cranking
• Inhibit steering lock
When BCM transmits the LOCK request signal to steering lock unit,
and receives LOCK response signal from steering lock unit, the fol-
lowing conditions are fulfilled
• Steering condition No. 1 signal: LOCK (0V)
• Steering condition No. 2 signal: LOCK (Battery voltage)
Display contents of CONSULT
Fail-safe
Cancellation
Revision: 2008 October
2009 Murano