Nissan Murano: Automatic Drive Positioner :: Dtc/circuit Diagnosis / B2128 Uart Comm
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC Detection Condition | |
|---|---|---|---|
| B2128 |
UART COMM (Universal asynchronous receiver transmitter communication) |
Diagnosis condition | — |
| Signal (terminal) | — | ||
| Threshold | Communication between driver seat control unit and automatic drive positioner control unit is interrupted. | ||
| Diagnosis delay time | A period of time. | ||
POSSIBLE CAUSE
-
UART communication line
(UART communication line is open or shorted)
-
Driver seat control unit
-
Automatic drive positioner control unit
FAIL-SAFE
Only manual functions, except door mirror, operate normally.
SELF-DIAGNOSIS WITH AUTOMATIC DRIVE POSITIONER CONTROL UNIT
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “AUTO DRIVE POS.”.
-
Check DTC.
Is the DTC detected?
YES>>Perform diagnosis procedure. Refer to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “AUTO DRIVE POS.”.
-
Erase the DTC.
-
Perform DTC confirmation procedure. Refer to DTC Confirmation Procedure.
Is the DTC displayed again?
YES>>GO TO 2.
NO>>Check intermittent incident. Refer to Intermittent Incident.
CHECK UART COMMUNICATION LINE CONTINUITY
-
Ignition switch OFF.
-
Disconnect driver seat control unit and automatic drive positioner control unit.
-
Check continuity between driver seat control unit harness connector and automatic drive positioner control unit harness connector.
Driver seat control unit connector Automatic drive positioner control unit connector Continuity Connector Terminal Connector Terminal B209 15 M33 8 Yes -
Check continuity between driver seat control unit harness connector and ground.
Driver seat control unit Ground Continuity Connector Terminal B209 15 No
Is the inspection result normal?
YES>>Check intermittent incident. Refer to Intermittent Incident.
NO>>Repair or replace harness.
B2112 Seat Slide
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B2112
SEAT SLIDE
(Seat slide)
Diagnosis condition
When ignition switch ON...
B2130 Eeprom
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition
B2130
EEPROM
(EEPROM malfunction)
Diagnosis condition
—
Signal (terminal)
—
Threshold
Driver seat control unit detected a CPU malfunction...
Other information:
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System Description SYSTEM DIAGRAMSYSTEM DESCRIPTION The engine protection control at low engine oil pressure warns the driver of a decrease in engine oil pressure by the oil pressure warning lamp before the engine becomes damaged. When detecting a decrease in engine oil pressure at an engine speed less than 1,000 rpm, ECM transmits an oil pressure warning lamp signal to the combination meter...
Nissan Murano (Z52) 2015-2024 Service Manual: Interior Lighting System :: Basic Inspection. Diagnosis and Repair Workflow
Work Flow OVERALL SEQUENCEDETAILED FLOWINTERVIEW FOR MALFUNCTION Find out what the customer's concerns are. >> GO TO 2. SYMPTOM CHECK Verify the symptom from the customer's information. >> GO TO 3. BASIC INSPECTION Check the operation of each part...
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Fuel gauge
The gauge indicates the approximate fuel level in the tank.
The gauge may move slightly during braking, turning, acceleration, or going up or down hills.
The gauge needle returns to 0 (Empty) after the ignition switch is placed in the OFF position.
