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

Tcu

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

USB

Ignition switch ON

Con

SIM status

Ignition switch ON

Unlock

Backup battery age

Ignition switch ON

Display backup battery age (days)

eUICC STATUS PIN used

Ignition switch ON

Enable

SOS switch

Ignition switch ON

When pressing SOS switch

On

Except for above

Off

Zone

Ignition switch ON

U.S.A

Power type

Ignition switch ON

Engine

Brand

Ignition switch ON

INFINITI

Radio wave

Ignition switch ON

On

Reference Value

Reference Value

TERMINAL LAYOUT

PHYSICAL VALUES

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/Output

1

(B)

29

(B)

Battery power supply

Input

Ignition switch OFF

Battery Voltage

5

(BG)

28

(B)

SOS switch LED signal

Input

Ignition switch ACC

  • When SOS switch LED is not illuminated

0 V

Ignition switch ACC

  • When SOS switch LED is illuminated

5 V

6

(LA/SB)

—

CAN-High

Input/Output

—

—

7

(LA/V)

—

CAN-Low

Input/Output

—

—

10

(W)

29

(B)

Ignition signal

Input

Ignition switch ON

Battery Voltage

12

(B)

28

(B)

Microphone output signal

Output

Ignition switch ACC

  • When interior sound is input

17

(V)

28

(B)

Microphone signal

Input

Ignition switch ACC

  • When interior sound is input

18

(LG)

28

(B)

Microphone VCC

Input

Ignition switch ACC

5 V

26

(LA/SB)

—

AV communication high

Input/Output

—

—

27

(LA/LG)

—

AV communication low

Input/Output

—

—

28

(B)

Ground

Ground

—

Ignition switch ON

0 V

29

(B)

Ground

Ground

—

Ignition switch ON

0 V

31

(W)

32

(B)

Sound signal (+)

Output

Ignition switch ACC

  • When interior sound is input

37

(G)

28

(B)

SOS call switch signal

Input

Ignition switch ACC

  • When pressing SOS switch

0 V

Ignition switch ACC

  • When SOS switch is released

5 V

41

(B)

—

Ground

—

—

—

43

(G)

—

D+ signal

Input/Output

—

—

44

(W)

—

D- signal

Input/Output

—

—

45

(R)

—

V BUS signal

Input

—

—

46

(Shield)

—

Shield

—

—

—

47

(B)

Ground

TEL antenna signal

Input

TEL antenna connector disconnected

2.8 V

48

(Shield)

—

Shield

—

—

—

49

(B)

Ground

GPS antenna signal

Input

GPS antenna connector disconnected

2.8 V

50

(Shield)

—

Shield

—

—

—

Fail-Safe

Fail-safe

If a malfunction occurs in the telematics system, TCU performs fail-safe activation according to the detected malfunction.

DTC

Telematics operation in fail-safe mode

B2E01-16

Telematics system does not operate

B2E01-4A

B2E01-4B

B2E01-96

B2E04-16

B2E05-29

B2E08-01

Microphone does not operate

B2E0B-01

Telematics system does not operate

B2E0F-06

Remote function does not operate

B2E10-11

Microphone does not operate

B2E10-12

B2E12-55

TCU has not been initialized

B2E1B-06

Telematics system does not operate

B2E1B-97

Automatic emergency call does not operate

B2E32-11

Telematics sound is not output

B2E32-12

B2E32-13

B2E34-11

Telematics can not send and receive via network

B2E34-12

B2E34-13

B2E35-11

Telematics can not send correct position

B2E35-12

B2E35-13

B2E49-06

Remote function does not operate

B2E4C-06

B2E4E-06

B2E4F-08

Remote engine start functions cannot be used

U0074-00

Telematics system does not operate

U0079-00

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

  • B2E12-55: Configuration

  • B2E1B-06: Automatic eCall Locked

  • B2E1B-97: Automatic eCall Locked

2

  • U0074-00: AV communication

  • U0079-00: CAN communication

3

  • B2E01-16: Internal battery

  • B2E01-4A: Internal battery

  • B2E01-4B: Internal battery

  • B2E01-96: Internal battery

  • B2E04-16: Internal battery

4

  • B2E05-29: Air Bag CAN

  • B2E08-01: Microphone

  • B2E0B-01: SOS LED (Auto)

  • B2E0F-06: GNSS COMMUNICATIONS FAILURE

  • B2E10-11: MIC OUT SIGNAL

  • B2E10-12: MIC OUT SIGNAL

  • B2E32-11: Audio unit

  • B2E32-12: Audio unit

  • B2E32-13: Audio unit

  • B2E34-11: TEL antenna

  • B2E34-12: TEL antenna

  • B2E34-13: TEL antenna

  • B2E35-11: GPS antenna

  • B2E35-12: GPS antenna

  • B2E35-13: GPS antenna

  • B2E49-06: Remote actuator not activated

  • B2E4C-06: Remote actuator without unknown ID

  • B2E4E-06: Remote Actuator- PIN code missing

  • B2E4F-08: BCM pairing

Dtc Index

DTC Index

CONSULT Display

Reference Page

B2E01-4A: Internal battery

DTC Description

B2E01-4B: Internal battery

B2E01-16: Internal battery

B2E01-96: Internal battery

B2E04-16: Internal battery

DTC Description

B2E05-29: Air Bag CAN

DTC Description

B2E08-01: Microphone

DTC Description

B2E0B-01: SOS LED (Auto)

DTC Description

B2E0F-06: GNSS COMMUNICATIONS FAILURE

DTC Description

B2E10-11: MIC OUT SIGNAL

DTC Description

B2E10-12: MIC OUT SIGNAL

B2E12-55: Configuration

DTC Description

B2E1B-06: Automatic eCall Locked

DTC Description

B2E1B-97: Automatic eCall Locked

B2E32-11: Audio unit

DTC Description

B2E32-12: Audio unit

B2E32-13: Audio unit

B2E34-11: TEL antenna

DTC Description

B2E34-12: TEL antenna

B2E34-13: TEL antenna

B2E35-11: GPS antenna

DTC Description

B2E35-12: GPS antenna

B2E35-13: GPS antenna

B2E49-06: Remote actuator not activated

DTC Description

B2E4C-06: Remote actuator without unknown ID

DTC Description

B2E4E-06: Remote Actuator- PIN code missing

DTC Description

B2E4F-08: BCM pairing

DTC Description

U0074-00: Control module comm Bus B Off

DTC Description

U0079-00: Control module comm Bus G Off

DTC Description

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