Infiniti G37 Coupe. Manual — part 356
DEF-48
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
Fail Safe
INFOID:0000000001911571
JCLWA0786GB
Display contents of CONSULT
Fail-safe
Cancellation
B2013: ID DISCORD BCM-S/L
Inhibit engine cranking
Erase DTC
B2014: CHAIN OF S/L-BCM
Inhibit engine cranking
Erase DTC
B2190: NATS ANTTENA AMP
Inhibit engine cranking
Erase DTC
BCM (BODY CONTROL MODULE)
DEF-49
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
B2191: DIFFERENCE OF KEY
Inhibit engine cranking
Erase DTC
B2192: ID DISCORD BCM-ECM
Inhibit engine cranking
Erase DTC
B2193: CHAIN OF BCM-ECM
Inhibit engine cranking
Erase DTC
B2557: VEHICLE SPEED
Inhibit steering lock
When normal vehicle speed signals have been received from ABS
actuator and electric unit (control unit) for 500 ms
B2560: STARTER CONT RELAY
Inhibit engine cranking
500 ms after the following CAN signal communication status has
become consistent
• Starter control relay signal
• Starter relay status signal
B2563: HI VOLTAGE
• Inhibit engine cranking
• Inhibit steering lock
500 ms after the power supply voltage decreases to less than 18 V
B2601: SHIFT POSITION
Inhibit steering lock
500 ms after the following signal reception status becomes consis-
tent
• Selector lever P position switch signal
• P range signal (CAN)
B2602: SHIFT POSITION
Inhibit steering lock
5 seconds after the following BCM recognition conditions are ful-
filled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (battery
voltage)
• Vehicle speed: 4 /h or more
B2603: SHIFT POSI STATUS
Inhibit steering lock
500 ms after the following BCM recognition conditions are fulfilled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (battery
voltage)
• Selector lever P/N position signal: Except P and N positions (0 V)
B2604: PNP SW
Inhibit steering lock
500 ms after any of the following BCM recognition conditions is ful-
filled
• Status 1
- Ignition switch is in the ON position
- Selector lever P/N position signal: P and N position (battery volt-
age)
- P range signal or N range signal (CAN): ON
• Status 2
- Ignition switch is in the ON position
- Selector lever P/N position signal: Except P and N positions (0 V)
- P range signal and N range signal (CAN): OFF
B2605: PNP SW
Inhibit steering lock
500 ms after any of the following BCM recognition conditions is ful-
filled
• Ignition switch is in the ON position
- Power position: IGN
- Selector lever P/N position signal: Except P and N positions (0 V)
- Interlock/PNP switch signal (CAN): OFF
• Status 2
- Ignition switch is in the ON position
- Selector lever P/N position signal: P or N position (battery volt-
age)
- PNP switch signal (CAN): ON
B2606: S/L RELAY
Inhibit engine cranking
500 ms after the following CAN signal communication status has
become consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)
B2607: S/L RELAY
Inhibit engine cranking
500 ms after the following CAN signal communication status has
become consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)
Display contents of CONSULT
Fail-safe
Cancellation
DEF-50
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
DTC Inspection Priority Chart
INFOID:0000000001911572
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
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 is 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 is 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
B26E1: ENG STATE NO RECIV
Inhibit engine cranking
When any of the following conditions is fulfilled
• Power position changes to ACC
• Receives engine status signal (CAN)
Display contents of CONSULT
Fail-safe
Cancellation
Priority
DTC
1
• B2562: LOW VOLTAGE
• B2563: HI VOLTAGE
2
• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
3
• B2190: NATS ANTTENA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
BCM (BODY CONTROL MODULE)
DEF-51
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
4
• B2013: ID DISCORD BCM-S/L
• B2014: CHAIN OF S/L-BCM
• B2553: IGNITION RELAY
• B2555: STOP LAMP
• B2556: PUSH-BTN IGN SW
• B2557: VEHICLE SPEED
• B2560: STARTER CONT RELAY
• B2601: SHIFT POSITION
• B2602: SHIFT POSITION
• B2603: SHIFT POSI STATUS
• B2604: PNP SW
• B2605: PNP SW
• B2606: S/L RELAY
• B2607: S/L RELAY
• B2608: STARTER RELAY
• B2609: S/L STATUS
• B260A: IGNITION RELAY
• B260B: STEERING LOCK UNIT
• B260C: STEERING LOCK UNIT
• B260D: STEERING LOCK UNIT
• B260F: ENG STATE SIG LOST
• B2611: ACC RELAY
• B2612: S/L STATUS
• B2614: ACC RELAY CIRC
• B2615: BLOWER RELAY CIRC
• B2616: IGN RELAY CIRC
• B2617: STARTER RELAY CIRC
• B2618: BCM
• B2619: BCM
• B261A: PUSH-BTN IGN SW
• B261E: VEHICLE TYPE
• B26E1: ENG STATE NO RECIV
• C1729: VHCL SPEED SIG ERR
• U0415: VEHICLE SPEED SIG
5
• C1704: LOW PRESSURE FL
• C1705: LOW PRESSURE FR
• C1706: LOW PRESSURE RR
• C1707: LOW PRESSURE RL
• C1708: [NO DATA] FL
• C1709: [NO DATA] FR
• C1710: [NO DATA] RR
• C1711: [NO DATA] RL
• C1712: [CHECKSUM ERR] FL
• C1713: [CHECKSUM ERR] FR
• C1714: [CHECKSUM ERR] RR
• C1715: [CHECKSUM ERR] RL
• C1716: [PRESSDATA ERR] FL
• C1717: [PRESSDATA ERR] FR
• C1718: [PRESSDATA ERR] RR
• C1719: [PRESSDATA ERR] RL
• C1720: [CODE ERR] FL
• C1721: [CODE ERR] FR
• C1722: [CODE ERR] RR
• C1723: [CODE ERR] RL
• C1724: [BATT VOLT LOW] FL
• C1725: [BATT VOLT LOW] FR
• C1726: [BATT VOLT LOW] RR
• C1727: [BATT VOLT LOW] RL
• C1734: CONTROL UNIT
6
• B2621: INSIDE ANTENNA
• B2622: INSIDE ANTENNA
• B2623: INSIDE ANTENNA
Priority
DTC
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