Nissan Murano: Dtc/circuit Diagnosis / B1305 Control Unit Internal Fault
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms
(Trouble diagnosis content) | DTC detection condition |
| B1305–04 |
Control unit internal error
(Audio unit internal fault) |
[—] |
Diagnosis condition |
When ignition switch is ON. |
| Signal (terminal) |
– |
| Threshold |
Internal fault |
| Diagnosis delay time |
30 seconds or more |
POSSIBLE CAUSE
Audio unit internal fault
FAIL-SAFE
Audio unit internal error
DTC Confirmation Procedure
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Ignition switch OFF and wait at least 30 seconds.
-
Ignition switch ON and wait at least 30 seconds or more.
-
Select “Self Diagnostic Result” mode of “MULTI AV”.
-
Check DTC.
Is DTC B1305–04 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
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Ignition switch OFF and wait at least 30 seconds.
-
Ignition switch ON and wait at least 30 seconds or more.
-
Select “Self Diagnostic Result” mode of “MULTI AV”.
-
Check DTC.
Is DTC B1305–04 detected?
YES>>
Replace audio unit. Refer to Removal and Installation.
NO>>
Inspection End.
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
B130B–13
Rear RH speaker
(Rear door speaker RH)
[OPEN]
Diagnosis condition
When ignition switch is ON...
Other information:
Description
ECM input/output valve when the engine control system operates normally.NOTE:
The SP value is indicated when “DISPLAY TYPE” is “Line Graph”.
When the indicated value of “DATA MONITOR” mode is within the SP value, the engine control system is confirmed OK...
Values on the Diagnosis Tool
NOTE:
The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items.
Monitor item Condition Value/Status
AMB TEMP SEN
Ignition switch ON
—
Equivalent to ambient temperature
IN-VEH TEMP
Ignition switch ON
—
Equivalent to in-Nissan Murano vehicle temperature (front side)
INT TEMP SEN
Ignition switch ON
—
Equivalent to front evaporator fin temperature
SUNLOAD SEN
Ignition switch ON
—
Equivalent to sunload (driver side)
AMB SEN CAL
Ignition switch ON
—
Equivalent to ambient temperature
IN-VEH CAL
Ignition switch ON
—
Equivalent to in-Nissan Murano vehicle temperature (front side)
INT TEMP CAL
Ignition switch ON
—
Equivalent to front evaporator fin temperature
SUNL SEN CAL
Ignition switch ON
—
Equivalent to sunload (driver side)
COMP REQ SIG
Engine: Run at idle after warming up
A/C switch: ON
(Compressor operation status ON)
On
A/C switch: OFF
(Compressor operation status OFF)
Off
FAN REQ SIG
Engine: Run at idle after warming up
Front blower motor: ON
On
Front blower motor: OFF
Off
FAN DUTY
Engine: Run at idle after warming up
Front blower motor: ON
25 – 81
Front blower motor: OFF
0
XM
Ignition switch ON
—
Value according to target air flow temperature (driver side)
PA TARGET A/TEMP
Ignition switch ON
—
Value according to target air flow temperature (passenger side)
ENG COOL TEMP
Ignition switch ON
—
Equivalent to engine coolant temperature
Nissan Murano Vehicle SPEED
Driving
—
Equivalent to speedometer reading
PASS SUNL CAL
Ignition switch ON
—
Equivalent to sunload (passenger side)
PASS SUNL SEN CAL
Ignition switch ON
—
Equivalent to sunload (passenger side)
Reference Value
TERMINAL LAYOUTPHYSICAL VALUES
Terminal No...