Nissan Rogue (T33) 2021-Present Service Manual: Pns Relay (power Network Separate Relay)

Nissan Rogue (T33) 2021-Present Service Manual / Cruise Control & Driver Assistance :: Cruise Control System / Propilot Assist 2.1 :: Dtc Diagnosis / Pns Relay (power Network Separate Relay)

B23c0-04 Power Network Separate Relay

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
B23C0 04 Power network separate relay Diagnosis condition When engine is running
Signal (terminal) —
Threshold Power network separate relay internal error
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

Power network separate relay

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

Confirmation Procedure

CHECK DTC PRIORITY

If DTC "B23C0-04" is displayed with network DTC, first perform the trouble diagnosis for network DTC.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable first DTC. Refer to DTC Index.

NO>>

GO TO 2.

DTC CONFIRMATION PROCEDURE

  1. Start the engine.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "B23C0-04" is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "B23C0-04" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK DTC PRIORITY

If DTC "B23C0-04" is displayed with network DTC, first perform the trouble diagnosis for network DTC.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable first DTC. Refer to DTC Index.

NO>>

Replace power network separate relay. Refer to Removal and Installation.

U2148-87 Can Comm Circuit

DTC Description

CAN COMMUNICATION

  • CAN communication is a multiplex communication system that shares many communication signals and enables high-speed communication by connecting multiple control units with two communication lines (CAN-H line, CAN-L line).

  • Each control unit on CAN network transmits signals through CAN communication control circuit in the control unit, receives only necessary signals from other control units, and performs various controls. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U2148 87 CAN comm err (brake control unit) Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC "U2148-87" is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

NOTE:

  • When "U2148-87" is detected, there are two types of systems, one that works fail-safe and the other that does not work fail-safe.

  • The system controls based on the signal from control unit. However, if communication between control unit and the power network separate relay is blackout, the system leads to fail-safe.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U2148-87" is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "U2148-87" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

U214f-87 Can Comm Circuit

DTC Description

CAN COMMUNICATION

  • CAN communication is a multiplex communication system that shares many communication signals and enables high-speed communication by connecting multiple control units with two communication lines (CAN-H line, CAN-L line).

  • Each control unit on CAN network transmits signals through CAN communication control circuit in the control unit, receives only necessary signals from other control units, and performs various controls. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U214F 87 CAN comm err (BCM) Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC “U214F-87" is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

NOTE:

  • When “U214F-87" is detected, there are two types of systems, one that works fail-safe and the other that does not work fail-safe.

  • The system controls based on the signal from control unit. However, if communication between control unit and the power network separate relay is blackout, the system leads to fail-safe.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U214F-87" is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "U214F-87" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

U2152-87 Can Comm Circuit

DTC Description

CAN COMMUNICATION

  • CAN communication is a multiplex communication system that shares many communication signals and enables high-speed communication by connecting multiple control units with two communication lines (CAN-H line, CAN-L line).

  • Each control unit on CAN network transmits signals through CAN communication control circuit in the control unit, receives only necessary signals from other control units, and performs various controls. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U2152 87 CAN communication error advanced driver assistant systems control unit Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC “U2152-87” is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

NOTE:

  • When “U2152-87” is detected, there are two types of systems, one that works fail-safe and the other that does not work fail-safe.

  • The system controls based on the signal from control unit. However, if communication between control unit and the power network separate relay is blackout, the system leads to fail-safe.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U2152-87 " is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "U2152-87" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

U215b-87 Can Comm Circuit

DTC Description

CAN COMMUNICATION

  • CAN communication is a multiplex communication system that shares many communication signals and enables high-speed communication by connecting multiple control units with two communication lines (CAN-H line, CAN-L line).

  • Each control unit on CAN network transmits signals through CAN communication control circuit in the control unit, receives only necessary signals from other control units, and performs various controls. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U215B 87 CAN comm err (IPDM E/R) Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC "U215B-87" is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

NOTE:

  • When "U215B-87" is detected, there are two types of systems, one that works fail-safe and the other that does not work fail-safe.

  • The system controls based on the signal from control unit. However, if communication between control unit and the power network separate relay is blackout, the system leads to fail-safe.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U215B-87" is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "U215B-87" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

U2175-87 Can Comm Circuit

DTC Description

CAN COMMUNICATION

  • CAN communication is a multiplex communication system that shares many communication signals and enables high-speed communication by connecting multiple control units with two communication lines (CAN-H line, CAN-L line).

  • Each control unit on CAN network transmits signals through CAN communication control circuit in the control unit, receives only necessary signals from other control units, and performs various controls. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U2175 87 CAN communication error (AVM) Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC "U2175-87" is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

NOTE:

  • When "U2175-87" is detected, there are two types of systems, one that works fail-safe and the other that does not work fail-safe.

  • The system controls based on the signal from control unit. However, if communication between control unit and the power network separate relay is blackout, the system leads to fail-safe.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U2175-87" is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "U2175-87" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

U2176-87 Can Comm Circuit

DTC Description

CAN COMMUNICATION

  • CAN communication is a multiplex communication system that shares many communication signals and enables high-speed communication by connecting multiple control units with two communication lines (CAN-H line, CAN-L line).

  • Each control unit on CAN network transmits signals through CAN communication control circuit in the control unit, receives only necessary signals from other control units, and performs various controls. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U2176 87 CAN communication error (chassis control module/steering angle sensor) Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC "U2176-87" is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

NOTE:

  • When "U2176-87" is detected, there are two types of systems, one that works fail-safe and the other that does not work fail-safe.

  • The system controls based on the signal from control unit. However, if communication between control unit and the power network separate relay is blackout, the system leads to fail-safe.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U215B-87" is detected as current malfunction in self-diagnosis result of "PNS Relay".

Is DTC "U2176-87" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure .

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

U2a0b-88 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen terms DTC detection condition
U2A0B 88 Communication Bus Off CH2-CAN Diagnosis condition When engine is running
Signal (terminal) CAN communication signal
Threshold Power network separate relay cannot receive/transmit CAN communication signal
Diagnosis delay time 2 seconds or more

NOTE:

When DTC "U2A0B-88" is detected, perform first diagnosis for CAN communication system.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The following systems are canceled.

  • Vehicle speed/vehicle-to-vehicle distance control mode function

  • Lane keeping function *1

  • Lane keeping function *2

  • Lane change support function

  • Overtaking support function

*1: ProPILOT Assist 2.1 display is green

*2: ProPILOT Assist 2.1 display is blue

Confirmation Procedure

CHECK DTC PRIORITY

If DTC "U2A0B-88" is displayed with network DTC, first perform the trouble diagnosis for network DTC.

Is applicable DTC detected?

YES>>

Perform diagnosis of applicable first DTC. Refer to DTC Index.

NO>>

GO TO 2.

DTC CONFIRMATION PROCEDURE

  1. Start the engine, and wait 2 seconds or more.

  2. Perform "All DTC Reading" with CONSULT.

  3. Check if "U2A0B-88" is detected as current malfunction in self-diagnosis result of "PNS relay".

Is DTC "U2A0B-88" detected as current malfunction?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM TROUBLE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM

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

>>

INSPECTION END

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