Nissan Murano: Dtc/circuit Diagnosis / U1a0b Mic in Conn
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| U1A0B |
MIC IN CONN (MIC in conn) |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | — | ||
| Threshold | No input of microphone circuits | ||
| Diagnosis delay time | — | ||
POSSIBLE CAUSE
-
Harness or connectors
-
Microphone
-
TCU
FAIL-SAFE
-
Transmit an own vehicle position to the NissanConnect center
-
Inform a NissanConnect center about abnormality
PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “TELEMATICS”.
-
Check DTC.
Is DTC U1A0B detected?
YES>>Proceed to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
CHECK MIC IN SIGNAL CIRCUIT AND MIC VCC CIRCUIT CONTINUITY
-
Ignition switch OFF.
-
Disconnect TCU connector and microphone connector.
-
Check continuity between TCU connector and microphone connector.
TCU Microphone Continuity Connector Terminal Connector Terminal M126 17 R8 1 Yes 18 4 -
Check the continuity between TCU connector and ground.
TCU Ground Continuity Connector Terminal M126 17 — No 18
Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace harness or connectors.
CHECK MIC VCC VOLTAGE
-
Connect TCU connector and microphone connector.
-
Ignition switch ON.
-
Check voltage between terminals of TCU connector.
TCU Voltage
(Approx.)Connector (+) (−) Terminal Terminal M126 18 28 5.0 V
Is the inspection result normal?
YES>>GO TO 3.
NO>>Replace TCU. Refer to Removal and Installation.
CHECK MIC IN SIGNAL
Check signal between terminals of TCU connector.
| TCU | Condition | Reference value | ||
| Connector | (+) | (−) | ||
| Terminal | Terminal | |||
| M126 | 17 | 28 | Speak into microphone. |
|
Is the inspection result normal?
YES>>Replace TCU. Refer to Removal and Installation.
NO>>Replace microphone. Refer to Removal and Installation.
U1a06 Usb Comm
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U1A06
TEL ANTENNA ERROR
(TEL antenna error)
Diagnosis condition
When ignition switch is ON...
U1a0e Sos Switch on Stuck
DTC Description
DTC DETECTION LOGIC DTC No.
CONSULT screen terms
(Trouble diagnosis content) DTC detection condition
U1A0E
SOS SWITCH ON STUCK
(SOS switch ON stuck)
Diagnosis condition
When ignition switch is ON...
Other information:
Nissan Murano (Z52) 2015-2024 Owners Manual: Operating the power liftgate (if so equipped)
WARNING Make sure that all passengers have their hands, etc., inside the vehicle before closing the liftgate. Do not leave children unattended inside the vehicle. They could unknowingly activate switches or controls. Unattended children could become involved in serious accidents...
Nissan Murano (Z52) 2015-2024 Service Manual: Second Row Seats
Exploded View LH SEAT — With Heated Seats 1. Seatback board 2. Seat cushion trim 3. Seat cushion pad (with heated seats) 4. Seat cushion link cover (RH) 5. Seat cushion hinge cover 6. Seat cushion frame 7. Seat cushion link cover (LH) 8...
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