Nissan Murano: Heater & Air Conditioning Control System :: Dtc/circuit Diagnosis / B27b0 A/c Auto Amp.
DTC DETECTION LOGIC
NOTE:
-
If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Description.
-
If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC Description.
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| B27B0 |
A/C AUTO AMP. (A/C auto amp.) |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | - | ||
| Threshold | - | ||
| Diagnosis delay time | - | ||
POSSIBLE CAUSE
A/C auto amp.
FAIL-SAFE
—
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “HVAC”.
-
Check DTC.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>Inspection End.
PERFORM SELF DIAGNOSTIC RESULT
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “HVAC”.
-
Select “ERASE”.
-
Ignition switch OFF.
-
Ignition switch ON.
-
Perform “DTC CONFIRMATION PROCEDURE”. Refer to DTC Description.
Is DTC detected again?
YES>>Replace A/C auto amp. Refer to Removal and Installation.
NO>>Inspection End.
B2796 Fr Sw Comm Error
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
B2796
FR SW COMM ERROR
(Front switch communication error)
Diagnosis condition
When ignition switch is ON...
Other information:
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Your vehicle has two types of security systems:
Vehicle security system NISSAN Vehicle Immobilizer SystemThe vehicle security system provides visual and audible alarm signals if someone opens the doors, liftgate or the hood when the system is armed. It is not, however, a motion detection type system that activates when a vehicle is moved or when a vibration occurs.
