Nissan Pathfinder: Dtc/circuit Diagnosis - E-Hud (head up Display Unit) ++

B22a0-46 Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A0-46	Control unit (Control unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	HUD Internal signal
		Threshold	—
		Diagnosis delay time	—

POSSIBLE CAUSE

Head up display unit

FAIL-SAFE

The mirror is shifted to the closed condition and the back light turned off, and the operation is continued.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Select erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A0-46" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC "B22A0‐46" detected again?

YES>>

Replace head up display unit. Refer to Removal and Installation.

NO>>

Inspection End.

B22a0-49 Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A0-49	Control unit (Control unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	HUD Internal signal
		Threshold	Signal disruption
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

Head up display unit

FAIL-SAFE

• The back light turned off, and the operation is continued.

• Operation is continued at a brightness that minimum input from the built-in illuminance sensor.

• Reset HUD software (Restart HUD system).

• Stop CAN communication.

• Turn OFF contents HUD display which disrupted signal.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC .

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A0-49" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC "B22A0‐49" detected again?

YES>>

Replace head up display unit. Refer to Removal and Installation.

NO>>

Inspection End.

B22a0-4b Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A0-4B	Control unit (Control unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	HUD Internal signal
		Threshold	TFT display high temperature is detected.
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

TFT display temperature is high

FAIL-SAFE

The mirror is shifted to the closed condition until the temperature of the TFT display drops to the specified temperature, and the operation is continued.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A0-4B" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC "B22A0‐4B" detected again?

YES>>

Replace head up display unit. Refer to Removal and Installation.

NO>>

Inspection End.

B22a0-52 Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A0-52	Control unit (Control unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	―
		Threshold	Calibration incomplete
		Diagnosis delay time	Every self diagnosis timing (Every 50 ms)

POSSIBLE CAUSE

Calibration is not yet performed

FAIL-SAFE

No fail-safe (HUD display with default calibration value)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds .

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A0-52" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM HEAD UP DISPLAY UNIT CALIBRATION

CONSULT

If DTC "B22A0-52" is detected, perform head up display unit calibration.

 

>>

Perform head up display unit calibration. Refer to Work Procedure.

B22a0-54 Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A0-54	Control unit (Control unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	―
		Threshold	Abnormal calibration value is detected
		Diagnosis delay time	Every self diagnosis timing (Every 50 ms)

POSSIBLE CAUSE

Calibration value is abnormal

FAIL-SAFE

No fail-safe (HUD display with default calibration value)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A0-54" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM HEAD UP DISPLAY UNIT CALIBRATION

CONSULT

If DTC "B22A0-54" is detected, perform head up display unit calibration.

 

>>

Perform head up display unit calibration. Refer to Work Procedure.

B22a0-57 Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A0-57	Control unit (Control unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	―
		Threshold	Calibration value read error is detected
		Diagnosis delay time	―

POSSIBLE CAUSE

Calibration value could not be read.

FAIL-SAFE

No fail-safe (HUD display with default calibration value)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A0-57" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM HEAD UP DISPLAY UNIT CALIBRATION

CONSULT

If DTC "B22A0-57" is detected, perform head up display unit calibration.

 

>>

Perform head up display unit calibration. Refer to Work Procedure.

B22a1-23 Main Switch Fix

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A1-23	Main switch fix (Main switch fix)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Head up display switch signal
		Threshold	Stuck ON
		Diagnosis delay time	10 minutes

POSSIBLE CAUSE

• Head up display switch

• Head up display switch signal circuit

FAIL-SAFE

The HUD display can not be switched ON/OFF

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A1-23" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK HEAD UP DISPLAY SWITCH SIGNAL CIRCUIT (SHORT)

1. Ignition switch OFF.

2. Disconnect head up display unit harness connector and head up display switch harness connector.

3. Check the continuity between the head up display unit harness connector and ground.

   Head up display unit		Ground	Continuity
   Connector	Terminal
   M107	13		No

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness or connector.

CHECK HEAD UP DISPLAY SWITCH

Check the head up display switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace head up display unit. Refer to Removal and Installation.

NO>>

Replace head up display switch. Refer to Removal and Installation.

B22a2-A2 Battery Voltage

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A2-A2	Battery voltage (Battery voltage)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Power supply
		Threshold	Less than 8 V
		Diagnosis delay time	10 seconds

POSSIBLE CAUSE

Power supply circuit voltage is low

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Ignition switch ON and wait at least 10 seconds.

4. Select “Self Diagnostic Result” mode of "E-HUD”.

5. Check DTC.

Is DTC "B22A2-A2" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK HEAD UP DISPLAY UNIT POWER SUPPLY CIRCUIT

Check the head up display unit power supply circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Repair or replace malfunctioning parts.

B22a2-A3 Battery Voltage

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B22A2-A3	Battery voltage (Battery voltage)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Power supply
		Threshold	16 V or more
		Diagnosis delay time	60 seconds

POSSIBLE CAUSE

Power supply circuit voltage is high

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch OFF.

2. Ignition switch ON and wait at least 60 seconds.

3. Select “Self Diagnostic Result” mode of "E-HUD”.

4. Check DTC.

Is DTC "B22A2-A3" detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

CHECK HEAD UP DISPLAY UNIT POWER SUPPLY CIRCUIT

Check the head up display unit power supply circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Repair or replace malfunctioning parts.

U2118-87 Can Comm Err (intelligent Key)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U2118-87	CAN comm err (Intelligent Key) CAN communication error (Intelligent Key)		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	3 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 3 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U2118-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U2118-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U2140-87 Can Comm Err (ecm)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U2140-87	CAN comm err (ECM) [CAN communication error (Engine Control module)]		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 2 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U2140-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U2140-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U2148-87 Can Comm Err (brake Control Unit)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U2148-87	CAN comm err (brake control unit) [CAN communication error (brake control unit)		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 2 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U2148-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U2148-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U214e-87 Can Comm Err (combination Meter)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U214E-87	CAN comm err (combination meter) [CAN communication error (combination meter)]		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	9 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 9 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U214E-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U214E-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U214f-87 Can Comm Err (bcm)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U214F-87	CAN comm err (BCM) [CAN communication error (Body Control module)]		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 2 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U214F-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U214F-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U2152-87 Can Comm Err (adas Control Unit)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U2152-87	CAN comm err (ADAS control unit) [CAN communication error (Advanced driver assistant system control unit)]		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	3 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 3 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U2152-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U2152-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U2154-87 Can Comm Err (miu)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U2154-87	CAN comm err (MIU) [CAN communication error (MIU)]		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	3 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 3 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U2154-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U2154-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.

U215b-87 Can Comm Err (ipdm E/r)

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U215B-87	CAN comm err (IPDM E/R) [CAN communication error (Intelligent power distribution module engine room)]		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The head up display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 2 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U215B-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U215B-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Fail-Safe.

NO>>

Inspection End.

U216b-87 Front Camera Comm Circuit

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Pathfinder vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Pathfinder vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)		DTC detection condition
U216B-87	FRONT CAMERA COMM CIRCUIT (Front camera communication circuit)		Diagnosis condition	Ignition switch ON.
			Signal (terminal)	CAN communication signal
			Threshold	When head up display unit is not transmitting or receiving
			Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The Head Up Display unit activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON and wait for 2 seconds or more.

2. Select “Self Diagnostic Result” mode of “E-HUD”.

3. Check DTC.

Is DTC U216B-87 detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

1. Ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U216B-87 detected again?

YES>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

NO>>

Inspection End.