Nissan Murano: Dtc/circuit Diagnosis / B2562 Low Voltage
DTC Description
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC Detection Condition |
| B2562 |
LOW VOLTAGE
(Low voltage) |
Diagnosis condition |
When ignition switch ON. |
| Signal (terminal) |
BCM power circuit (terminal 139 and 131 and ground) |
| Threshold |
Less than 8.8V |
| Diagnosis delay time |
120 seconds or more |
POSSIBLE CAUSE
FAIL-SAFE
Inhibit cranking
DTC CONFIRMATION PROCEDURE
DTC CONFIRMATION PROCEDURE
CONSULT
-
Erase DTC.
-
Ignition switch OFF.
-
Select the “Self Diagnostic Result” mode of “BCM”, after ignition switch ON for 120 seconds or more.
Is any DTC detected?
YES>>
Refer to DTC Diagnosis Procedure.
NO>>
To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>
Confirmation after repair: Inspection End.
DTC Diagnosis Procedure
CHECK POWER SUPPLY CIRCUIT
Check BCM power supply circuit. Refer to Diagnosis Procedure.
Is the circuit normal?
YES>>
Replace BCM. Refer to Removal and Installation.
NO>>
Repair the malfunctioning part.
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
U0415
Nissan Murano Vehicle SPEED
(Vehicle speed signal)
Diagnosis condition
When ignition switch ON...
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B259A
ROOM LAMP FUSE BLOWN
(Room lamp fuse blown)
Diagnosis condition
When ignition switch ON...
Other information:
Towing your vehicle with all four wheels on
the ground is sometimes called flat towing.
This method is sometimes used when
towing a vehicle behind a recreational vehicle,
such as a motor home.
CAUTION
Failure to follow these guidelines can
result in severe transmission damage...
Symptom Table
SYSTEM — BASIC ENGINE CONTROL SYSTEM SYMPTOM Reference page
HARD/NO START/RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION LACK OF POWER/POOR ACCELERATION HIGH IDLE/LOW IDLE ROUGH IDLE/HUNTING IDLING VIBRATION SLOW/NO RETURN TO IDLE OVERHEATS/WATER TEMPERATURE HIGH EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel
Fuel pump circuit
1
1
2
3
2
2
2
3
2
Diagnosis Procedure
Fuel pressure regulator system
3
3
4
4
4
4
4
4
4
4
Work Procedure
Fuel injector circuit
1
1
2
3
2
2
2
2
Component Function Check
Evaporative emission system
3
3
4
4
4
4
4
4
4
4
System Description
Air
Positive crankcase ventilation system
3
3
4
4
4
4
4
4
4
4
1
Positive Crankcase Ventilation (PCV)
Incorrect idle speed adjustment
1
1
1
1
1
Work Procedure
Electric throttle control actuator
1
1
2
3
3
2
2
2
2
2
2
DTC Description, DTC Description
Ignition
Incorrect ignition timing adjustment
3
3
1
1
1
1
1
1
Work Procedure
Ignition circuit
1
1
2
2
2
2
2
2
Component Function Check
Power supply and ground circuit
2
2
3
3
3
3
3
2
3
Diagnosis Procedure
Mass air flow sensor circuit
1
1
2
2
2
2
2
2
DTC Description, DTC Description
Engine coolant temperature sensor circuit
3
3
3
DTC Description, DTC Description
Air fuel ratio (A/F) sensor 1 circuit
DTC Description, DTC Description, DTC Description, DTC Description, DTC Description
Throttle position sensor circuit
2
2
DTC Description, DTC Description, DTC Description, DTC Description, DTC Description
Accelerator pedal position sensor circuit
3
2
1
DTC Description, DTC Description, DTC Description, DTC Description
Knock sensor circuit
2
3
DTC Description
Engine oil temperature sensor
4
2
3
DTC Description, DTC Description
Crankshaft position sensor (POS) circuit
2
2
DTC Description
Camshaft position sensor (PHASE) circuit
3
2
DTC Description
Nissan Murano Vehicle speed signal circuit
2
3
3
3
DTC Description
ECM
2
2
3
3
3
3
3
3
3
3
3
DTC Description, DTC Description
Intake valve timing control solenoid valve circuit
3
2
1
3
2
2
3
3
DTC Description
Intake valve timing intermediate lock control solenoid valve circuit
DTC Description
Exhaust valve timing control solenoid valve
3
2
1
3
2
2
3
3
DTC Description
PNP signal circuit
3
3
3
3
3
DTC Description
VIAS control solenoid valve 1 circuit
1
DTC Description
VIAS control solenoid valve 2 circuit
1
DTC Description
Refrigerant pressure sensor circuit
2
3
3
4
Component Function Check
Electrical load signal circuit
3
Component Function Check
Air conditioner circuit
2
2
3
3
3
3
3
3
3
3
2
Work Flow
ABS actuator and electric unit (control unit)
4
Work Flow
1 - 6: The numbers refer to the order of inspection...