Nissan Murano: Dtc/circuit Diagnosis / Push-Button Ignition Switch Circuit
Component Function Check
CHECK FUNCTION
CONSULT
-
Select “PUSH SW” in “Data Monitor” mode of “BCM(INTELLIGENT KEY)".
-
Check the push-button ignition switch signal under the following conditions:
| Test item | Condition | Status |
| PUSH SW |
Push-button ignition switch is pressed |
On |
| Push-button ignition switch is not pressed |
Off |
Is the indication normal?
YES>>
Inspection End.
NO>>
Refer to Diagnosis Procedure.
Diagnosis Procedure
CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)
-
Ignition switch OFF.
-
Disconnect push-button ignition switch connector and IPDM E/R connector.
-
Check voltage between push-button ignition switch harness connector and ground.
| Push-button ignition switch |
— |
Voltage
(Approx.) |
| Connector |
Terminal |
| M208 |
8 |
Ground |
Battery voltage |
Is the inspection result normal?
YES>>
GO TO 3.
NO>>
GO TO 2.
CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
-
Disconnect BCM connector.
-
Check continuity between BCM harness connector and push-button ignition switch harness connector.
| BCM | Push-button ignition switch | Continuity |
| Connector | Terminal | Connector | Terminal |
| M18 |
1 |
M208 |
8 |
Yes |
-
Check continuity between BCM harness connector and ground.
| BCM |
— |
Continuity |
| Connector |
Terminal |
| M18 |
1 |
Ground |
No |
Is the inspection result normal?
YES>>
Replace BCM. Refer to Removal and Installation.
NO>>
Repair or replace harness or connectors.
CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
Check voltage between IPDM E/R harness connector and ground.
| IPDM E/R |
— |
Voltage
(Approx.) |
| Connector |
Terminal |
| E119 |
38 |
Ground |
Battery voltage |
Is the inspection result normal?
YES>>
GO TO 5.
NO>>
GO TO 4.
CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)
-
Disconnect BCM connector.
-
Check continuity between IPDM E/R harness connector and BCM harness connector.
| IPDM E/R | BCM | Continuity |
| Connector | Terminal | Connector | Terminal |
| E119 |
38 |
M18 |
1 |
Yes |
-
Check continuity between IPDM E/R harness connector and ground.
| IPDM E/R |
— |
Continuity |
| Connector |
Terminal |
| E119 |
38 |
Ground |
No |
Is the inspection result normal?
YES>>
Replace IPDM E/R. Refer to Removal and Installation.
NO>>
Repair or replace harness or connectors.
CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT
Check continuity between push-button ignition switch harness connector and ground.
| Push-button ignition switch |
— |
Continuity |
| Connector |
Terminal |
| M208 |
4 |
Ground |
Yes |
Is the inspection result normal?
YES>>
GO TO 6.
NO>>
Repair or replace harness or connectors.
CHECK PUSH-BUTTON IGNITION SWITCH
Refer to Component Inspection.
Is the inspection result normal?
YES>>
Refer to Intermittent Incident.
NO>>
Replace push-button ignition switch. Refer to Removal and Installation.
Component Inspection
CHECK PUSH-BUTTON IGNITION SWITCH
-
Ignition switch OFF.
-
Disconnect push-button ignition switch connector.
-
Check continuity between push-button ignition switch terminals.
| Push-button ignition switch | Condition | Continuity |
| Terminals |
| 4 |
8 |
Pressed |
Yes |
| Not pressed |
No |
Is the inspection result normal?
YES>>
Inspection End.
NO>>
Replace push-button ignition switch. Refer to Removal and Installation.
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B26F1
IGN RELAY OFF
(Ignition relay off)
Diagnosis condition
When ignition switch ON...
Diagnosis Procedure
CHECK FUSIBLE LINKS
Check that the following fusible links are not blown:
Terminal Signal name Fusible link No. Capacity
1
Battery power supply
E
80 A
2
A
250 A
C
80 A
3
A
250 A
B
100 A
N
40 A
Is the fusible link blown?
YES>>
Replace the blown fusible link after repairing the affected circuit...
Other information:
Diagnosis Procedure
CHECK REAR POWER WINDOW SWITCH RH SERIAL LINK CIRCUIT
Check rear power window switch RH serial link circuit.
Refer to Diagnosis Procedure.
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Repair or replace the malfunctioning parts...
Abbreviation List
The following ABBREVIATIONS are used:A ABBREVIATION DESCRIPTION
A/C
Air conditioner
Air conditioning
A/F sensor
Air fuel ratio sensor
A/T
Automatic transaxle/transmission
ABS
Anti-lock braking system
ACCS
Advance climate control system
ACL
Air cleaner
AEB
Automatic Emergency Braking
AP
Accelerator pedal
APP
Accelerator pedal position
ATF
Automatic transmission fluid
ATR
Active torque rod
AV
Audio visual
AVM
Around view monitor
AWD
All wheel drive
B ABBREVIATION DESCRIPTION
BARO
Barometric pressure
BCI
Backup collision intervention
BCM
Body control module
BLSD
Brake limited slip differential
BPP
Brake pedal position
BSI
Blind spot intervention
BSW
Blind spot warning
C ABBREVIATION DESCRIPTION
CGW
Can Gateway
CKP
Crankshaft position
CL
Closed loop
CMP
Camshaft position
CPP
Clutch pedal position
CTP
Closed throttle position
CVT
Continuously variable transaxle/transmission
D ABBREVIATION DESCRIPTION
D1
Drive range first gear
D2
Drive range second gear
D3
Drive range third gear
D4
Drive range fourth gear
DCA
Distance control assist
DDS
Downhill drive support
DFI
Direct fuel injection system
DLC
Data link connector
DTC
Diagnostic trouble code
E ABBREVIATION DESCRIPTION
E/T
Exhaust temperature
EBD
Electric brake force distribution
EC
Engine control
ECD
Electronic controlled deceleration
ECL
Engine coolant level
ECM
Engine control module
ECT
Engine coolant temperature
ECV
Electrical control valve
EEPROM
Electrically erasable programmable read only memory
EFT
Engine fuel temperature
EGR
Exhaust gas recirculation
EGRT
Exhaust gas recirculation temperature
EGT
Exhaust gas temperature
ELD
Electronic locking differential
EOP
Engine oil pressure
EP
Exhaust pressure
EPR
Exhaust pressure regulator
EPS
Electronically controlled power steering
Electronic power steering
ESP
Electronic stability program system
EVAP canister
Evaporative emission canister
EVSE
Electric Nissan Murano vehicle supply equipment
EXC
Exhaust control
F ABBREVIATION DESCRIPTION
FC
Fan control
FCW
Forward collision warning
FEB
Forward Emergency Braking
FIC
Fuel injector control
FP
Fuel pump
FR
Front
FRP
Fuel rail pressure
FRT
Fuel rail temperature
FTP
Fuel tank pressure
FTT
Fuel tank temperature
G ABBREVIATION DESCRIPTION
GND
Ground
GPS
Global positioning system
GST
Generic scan tool
H ABBREVIATION DESCRIPTION
HBMC
Hydraulic body-motion control system
HDD
Hard disk drive
HO2S
Heated oxygen sensor
HOC
Heated oxidation catalyst
HPCM
Hybrid powertrain control module
I ABBREVIATION DESCRIPTION
I/M
Inspection and maintenance
IA
Intake air
IAC
Idle air control
IAT
Intake air temperature
IBA
Intelligent brake assist
IC
Ignition control
ICC
Intelligent cruise control
ICM
Ignition control module
IPDM E/R
Intelligent power distribution module engine room
ISC
Idle speed control
ISS
Input shaft speed
ITS
Information technology suite
IVC
In-Nissan Murano vehicle communications
K ABBREVIATION DESCRIPTION
KS
Knock sensor
L ABBREVIATION DESCRIPTION
LBC
Li-ion battery controller
LCD
Liquid crystal display
LCU
Local control unit
LDP
Lane departure prevention
LDW
Lane departure warning
LED
Light emitting diode
LH
Left-hand
LHD
Left-hand drive
LIN
Local interconnect network
M ABBREVIATION DESCRIPTION
M/T
Manual transaxle/transmission
MAF
Mass airflow
MAP
Manifold absolute pressure
MDU
Multi display unit
MI
Malfunction indicator
MIL
Malfunction indicator lamp
MOD
Moving object detection
N ABBREVIATION DESCRIPTION
NOX
Nitrogen oxides
O ABBREVIATION DESCRIPTION
O2
Oxygen
O2S
Oxygen sensor
OBD
On board diagnostic
OC
Oxidation catalytic converter
OD
Overdrive
OL
Open loop
OSS
Output shaft speed
P ABBREVIATION DESCRIPTION
P/S
Power steering
PBR
Potentio balance resistor
PCV
Positive crankcase ventilation
PFCW
Predictive forward collision warning
PNP
Park/Neutral position
PSP
Power steering pressure
PTC
Positive temperature coefficient
PTO
Power takeoff
PWM
Pulse width modulation
R ABBREVIATION DESCRIPTION
RAM
Random access memory
RAS
Rear active steer
RH
Right-hand
RHD
Right-hand drive
ROM
Read only memory
RPM
Engine speed
RR
Rear
S ABBREVIATION DESCRIPTION
SAE
Society of Automotive Engineers, Inc...