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Nissan Sentra B18 (2020-2025) Service Manual: Ecu Diagnosis Information

Av Control Unit

Values on the Diagnosis Tool

Values on the Diagnosis Tool

Note:

The following table includes information (items) inapplicable to this Nissan Sentra vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor Item

Condition

Value/Status

Sunload sensor

—

Off

—

On

Parking brake

Parking brake not applied.

Off

Parking brake applied.

On

IGN SIG

Ignition switch OFF.

Off

Ignition switch ON.

On

Auto ACC

Auto accessory mode OFF.

Off

Auto accessory mode ON.

On

ACC

Accessory mode OFF.

Off

Accessory mode ON.

On

Aux IN 1

Accessory not connected to aux in jack.

Off

Accessory connected to aux in jack.

On

Aux IN 2

Accessory not connected to USB.

Off

Accessory connected to USB.

On

TCU mute signal

TCU not sending mute signal.

Off

TCU sending mute signal.

On

REV SIG

Selector lever in any position other than R.

Off

Selector lever in R position.

On

ILLUM SIG

Illumination signal not received.

Off

Illumination signal received.

On

Illumination Control

Illumination control signal not received.

Off

Illumination control signal received.

On

Reference Value

Reference Value

TERMINAL LAYOUT

PHYSICAL VALUES

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/Output

Ignition switch

Operation

1

(Y)

Ground

Bose speaker amp. ON signal

Output

ON

—

Battery voltage

2

(BR)

3

(SB)

Pre-amp sound signal front LH

Output

ON

Sound output

4

(LG)

5

(P)

Pre-amp sound signal rear LH

Output

ON

Sound output

10

(LA/B)

—

Pre-amp sound signal shield

—

—

—

—

11

(B)

12

(W)

Pre-amp sound signal front RH

Output

ON

Sound output

13

(G)

14

(R)

Pre-amp sound signal rear RH

Output

ON

Sound output

19

(P)

Ground

Battery power supply

Input

OFF

—

Battery voltage

20

(B)

Ground

Ground

—

ON

—

0 V

21

(V)1

(B)2

42

(Shield)1

(LA/B)2

Microphone signal

Input

ON

While speaking into microphone.

22

(LG)

Ground

MIC VCC

Output

ON

—

5 V

27

(L)

Ground

AUX jack audio signal RH

Input

ON

Received audio signal (AUX input)

28

(Y)

Ground

AUX ground

—

ON

—

0 V

292

(W)

492

(B)

Telematics microphone signal

Input

ON

While speaking into microphone.

302

(Shield)

—

Telematics microphone signal shield

—

—

—

—

32

(W)

Ground

Camera ground

—

ON

—

0 V

33

(R)

Ground

Camera power supply

Output

ON

Camera image displayed

6.0 V

Except for above

0 V

38

(LA/SB)

—

AV communication high

Input/Output

—

—

—

39

(LA/SB)

—

AV communication high

Input/Output

—

—

—

40

(LA/SB)

—

CAN-High

Input/Output

—

—

—

47

(G)

Ground

AUX jack audio signal LH

Input

ON

Received audio signal (AUX input)

48

(Shield)

—

AUX signal shield

—

—

—

—

50

(Y)

—

HF/VR mode change

—

—

—

—

52

(B)

53

(Shield)

Camera image signal

Input

ON

Camera image displayed

58

(LA/LG)

—

AV communication low

Input/Output

—

—

—

59

(LA/LG)

—

AV communication low

Input/Output

—

—

—

60

(LA/V)

—

CAN-Low

Input/Output

—

—

—

61

(Y)

—

USB ground

—

—

—

—

63

(L)

—

USB D+ signal

—

—

—

—

64

(G)

—

USB D− signal

—

—

—

—

65

(R)

—

V BUS signal

—

—

—

—

66

(Shield)

—

USB shield

—

—

—

—

67

(B)

Ground

AM/FM antenna signal

Input

ON

AV control unit ON, FM-AM selected.

5.0 V

68

(Shield)

—

AM/FM antenna shield

—

—

—

—

69

(B)

Ground

Satellite antenna signal

Input

ON

AV control unit ON, XM selected.

5.0 V

70

(Shield)

—

Satellite antenna shield

—

—

—

—

712

(B)

—

USB ground

—

—

—

—

732

(G)

—

USB D+ signal

—

—

—

—

742

(W)

—

USB D− signal

—

—

—

—

752

(R)

—

V BUS signal

—

—

—

—

762

(Shield)

—

USB shield

—

—

—

—

1: Without Telematics System

2: With Telematics System

Fail Safe

Fail Safe

DTC

AV control unit operation in fail-safe mode

B1305-04

AV control unit internal error

B1309-11

No sound from Bose speaker amp.

B1309-12

B1317-11

No satellite radio reception

B1317-13

B1328-11

Microphone is inoperative

B1328-12

B1328-13

B132A-01

USB is inoperative

B132A-13

B132A-49

B132C-01

Telematics system inoperative

B132C-13

B132C-49

B133A-8F

Camera image is inoperative

B1341-16

Battery protection shuts AV control unit down 60 seconds after low voltage condition

B1341-17

  • AV control unit display inoperative

  • Audio output is inoperative

B1341-49

AV control unit internal failure

B1341-55

AV control unit configuration error

B1341-98

AV control unit shuts down after 5 seconds

B1342-62

Audio and visual system features are unavailable

B1343-41

AV control unit ROM error

B1344-41

AV control unit EEPROM error

B1345-49

AV control unit GYRO error

B1347-49

Bluetooth® is inoperative

B1351-4B

AV control unit shuts down and cannot restart for more than 5 minutes

B1356-49

AV control unit DSP error

B135E-49

AV control unit fan error

B1360-02

Steering switch is inoperative

B1380-49

Wi-fi function is inoperative

B1383-01

Predictive course line is not displayed

B13CF-73

AV control unit buttons error

B13D9-8F

USB devices connected to front auxiliary input jacks are inoperative

B13E5-8F

Telematics system inoperative

U0079-00

CAN communication does not function

U1000-01

Function of CAN communication signals received by AV control unit are inoperative

U1300-01

AV communication is inoperative

Dtc Inspection Priority Chart

DTC Inspection Priority Chart

If multiple DTCs are detected simultaneously, check them one by one depending on the following DTC inspection priority chart:

Priority

Detected items (DTC)

1

  • U0079-00: Control module communication Bus G Off

  • U1000-01: CAN COMM CIRCUIT

  • U1300-01: AV communication circuit

2

  • B1305-04: Control unit internal error

  • B1341-16: Head unit

  • B1341-17: Head unit

  • B1341-49: Head unit

  • B1341-55: Head unit

  • B1341-98: Head unit

  • B1342-62: Locked system

  • B1343-41: ECU Rom

  • B1344-41: ECU EEPROM

  • B1345-49: ECU Gyro

  • B1347-49: ECU Bluetooth module

  • B1351-4B: ECU amplifier

  • B1356-49: ECU DSP

  • B135E-49: ECU fan

  • B1380-49: ECU Wifi module

3

  • B1309-11: System ON

  • B1309-12: System ON

  • B1317-11: XM antenna connection

  • B1317-13: XM antenna connection

  • B1328-11: External microphone 1

  • B1328-12: External microphone 1

  • B1328-13: External microphone 1

  • B132A-01: External USB

  • B132A-13: External USB

  • B132A-49: External USB

  • B132C-01: TCU Connection

  • B132C-13: TCU Connection

  • B132C-49: TCU Connection

  • B133A-8F: AVM connection

  • B1360-02: Combination meter

  • B1383-01: Incomp steering angle sensor adjust

  • B13CF-73: Buttons

  • B13D9-8F: USB communication error

  • B13E5-8F: TCU connection

Dtc Index

DTC Index

CONSULT Display

Reference Page

B1305-04: Control unit internal error

DTC Description

B1309-11: System ON

DTC Description

B1309-12: System ON

B1317-11: XM antenna connection

DTC Description

B1317-13: XM antenna connection

B1328-11: External microphone 1

DTC Description

B1328-12: External microphone 1

B1328-13: External microphone 1

B132A-01: External USB

DTC Description

B132A-13: External USB

B132A-49: External USB

B132C-01: TCU Connection

DTC Description

B132C-13: TCU Connection

B132C-49: TCU Connection

B133A-8F: AVM connection

DTC Description

B1341-16: Head unit

DTC Description

B1341-17: Head unit

B1341-49: Head unit

B1341-55: Head unit

B1341-98: Head unit

B1342-62: Locked system

DTC Description

B1343-41: ECU Rom

DTC Description

B1344-41: ECU EEPROM

DTC Description

B1345-49: ECU Gyro

DTC Description

B1347-49: ECU Bluetooth module

DTC Description

B1351-4B: ECU Amplifier

DTC Description

B1356-49: ECU DSP

DTC Description

B135E-49: ECU Fan

DTC Description

B1360-02: Combination meter

DTC Description

B1380-49: ECU Wifi module

DTC Description

B1383-01: Incomp steering angle sensor adjust

DTC Description

B13CF-73: Buttons

DTC Description

B13D9-8F: USB communication error

DTC Description

B13E5-8F: TCU connection

DTC Description

U0079-00: Control module communication Bus G Off

DTC Description

U1000-01: CAN COMM CIRCUIT

DTC Description

U1300-01: AV communication circuit

DTC Description

Bose Speaker Amp

Values on the Diagnosis Tool

Values On The Diagnosis Tool

Note:

The following table includes information (items) inapplicable to this Nissan Sentra vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor Item

Condition

Value/Status

CONFIGURATION (AUDIO)

Audio configuration type

Numerical

ANC OPERATING CONDITION

Active noise cancellation not applied.

Off

Active noise cancellation applied.

On

ASC OPERATING CONDITION

Active sound enhancement not applied.

Off

Active sound enhancement applied.

On

ENGINE SPEED

Engine RPM status from ECM via CAN communication.

rpm

Nissan Sentra Vehicle speed

Vehicle speed status from combination meter via CAN communication.

km/h/mph

DOOR STATUS

Door closed status from BCM via CAN communication.

Close

Door open status from BCM via CAN communication.

Open

Reference Value

Reference Value

TERMINAL LAYOUT

PHYSICAL VALUES

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/Output

Ignition switch

Operation

1

(SB)

5

(B)

Battery power supply

Input

OFF

—

Battery voltage

2

(P)

6

(BR)

Sound signal front door speaker LH

Output

ON

Sound output

3

(W)

7

(B)

Sound signal rear speaker LH

Output

ON

Sound output

5

(B)

—

Ground

—

ON

—

0 V

8

(G)

4

(R)

Sound signal front door speaker RH

Input

ON

Sound output

9

(G)

17

(BR)

Sound signal rear speaker RH

Output

ON

Sound output

11

(G)

10

(W)

Sound signal rear door speaker LH

Output

ON

Sound output

12

(BG)

13

(P)

Sound signal rear door speaker RH

Output

ON

Sound output

15

(Y)

14

(W)

Sound signal front tweeter RH

Output

ON

Sound output

16

(V)

24

(SB)

Sound signal front tweeter LH

Output

ON

Sound output

18

(GR)

Ground

Amp. ON signal

Output

ON

—

Battery voltage

19

(B)

5

(B)

Ignition power supply

Input

ON

—

Battery voltage

22

(L)

—

CAN-High

Input/Output

—

—

—

23

(R)

—

CAN-Low

Input/Output

—

—

—

29

(LG)

37

(SB)

Sound signal rear RH

Input

ON

Sound output

30

(B)

38

(W)

Sound signal rear LH

Input

ON

Sound output

31

(BR)

39

(P)

Sound signal front RH

Input

ON

Sound output

32

(G)

40

(R)

Sound signal front LH

Input

ON

Sound output

Dtc Index

DTC Index

CONSULT Display

Reference Page

B1F05–29: CAN sig error/diag

DTC Description

U1000–01: CAN COMM CIRCUIT

DTC Description

U1010–49: CONTROL UNIT(CAN)

DTC Description

U1231–98: Amplifier temperature

DTC Description

U1600-11: Front left door speaker out

DTC Description

U1600-12: Front left door speaker out

U1600-13: Front left door speaker out

U1600-1A: Front left door speaker out

U1608-11: Front right door speaker out

DTC Description

U1608-12: Front right door speaker out

U1608-13: Front right door speaker out

U1608-1A: Front right door speaker out

U164B-11: Front pillar left tweeter out

DTC Description

U164B-12: Front pillar left tweeter out

U164B-13: Front pillar left tweeter out

U164B-1A: Front pillar left tweeter out

U1653-11: Front pillar right tweeter out

DTC Description

U1653-12: Front pillar right tweeter out

U1653-13: Front pillar right tweeter out

U1653-1A: Front pillar right tweeter out

U1709-11: Rear left door woofer out

DTC Description

U1709-12: Rear left door woofer out

U1709-13: Rear left door woofer out

U1709-1A: Rear left door woofer out

U1711-11: Rear right door woofer out

DTC Description

U1711-12: Rear right door woofer out

U1711-13: Rear right door woofer out

U1711-1A: Rear right door woofer out

U1721-11: Rear parcel shelf left woofer out

DTC Description

U1721-12: Rear parcel shelf left woofer out

U1721-13: Rear parcel shelf left woofer out

U1721-1A: Rear parcel shelf left woofer out

U1729-11: Rear parcel shelf right woofer out

DTC Description

U1729-12: Rear parcel shelf right woofer out

U1729-13: Rear parcel shelf right woofer out

U1729-1A: Rear parcel shelf right woofer out

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