Nissan Versa Note. Manual - part 294

EC-158

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

POWER SUPPLY AND GROUND CIRCUIT

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 9.

7.

CHECK ECM POWER SUPPLY CIRCUIT-III

1. Turn ignition switch ON.

2. Check the voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace IPDM E/R. Refer to 

PCS-31, "Removal and Installation"

(WITH I-KEY), 

PCS-60,

"Removal and Installation"

(WITHOUT I-KEY).

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

>> INSPECTION END

9.

CHECK ECM POWER SUPPLY CIRCUIT-IV

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> GO TO 10.

10.

CHECK ECM POWER SUPPLY CIRCUIT-V

1. Disconnect ECM harness connector.

2. Disconnect IPDM E/R harness connector F43.

3. Check the continuity between ECM harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 12.

NO

>> GO TO 11.

11.

DETECT MALFUNCTIONING PART

Check the following.

ECM

Ground

Voltage

Connector

Terminal

E16

105

Ground

After turning ignition switch OFF, battery voltage will ex-
ist for a few seconds, then drop to approximately 0 V.

IPDM E/R

Ground

Voltage

Connector

Terminal

F43

50

Ground

Battery voltage

ECM

Ground

Voltage

Connector

Terminal

F10

32

Ground

Battery voltage

ECM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F10

32

F43

50

Existed

POWER SUPPLY AND GROUND CIRCUIT

EC-159

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

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EC

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• Harness for open or short between ECM and IPDM E/R

>> Repair open circuit or short to ground or short to power in harness or connectors.

12.

CHECK 20 A FUSE

1. Disconnect 20 A fuse (No. 53) from IPDM E/R.

2. Check 20 A fuse.
Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Replace 20 A fuse.

13.

CHECK ECM POWER SUPPLY CIRCUIT-VI

1. Disconnect ECM harness connector.

2. Disconnect IPDM E/R harness connector E44.

3. Check the continuity between ECM harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Repair open circuit or short to ground or short power in harness or connectors.

14.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-31, "Removal and Installation"

(WITH I-KEY), 

PCS-60,

"Removal and Installation"

(WITHOUT I-KEY).

NO

>> Repair or replace harness or connectors.

ECM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E16

105

E44

11

Existed

EC-160

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

U0101 CAN COMM CIRCUIT

U0101 CAN COMM CIRCUIT

Description

INFOID:0000000009020672

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

tronic control units are equipped onto a vehicle, and each control unit shares information and links with other

control units during operation (not independent). In CAN communication, control units are connected with 2

communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000009020673

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 3 seconds.

2. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EC-160, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009020674

Perform the trouble diagnosis for CAN communication system. Refer to 

LAN-15, "Trouble Diagnosis Flow

Chart"

.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

U0101

LOST COMM (TCM)
(Lost communication with TCM)

When ECM is not transmitting or receiving CAN 
communication signal of OBD (emission-related 
diagnosis) with TCM for 2 seconds or more.

CAN communication line between 
TCM and ECM

U0284 ACTIVE GRILLE SHUTTER

EC-161

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

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U0284 ACTIVE GRILLE SHUTTER

DTC Logic

INFOID:0000000009509479

DTC DETECTION LOGIC

NOTE:

If DTC U0284 is displayed with another DTC UXXXX, perform trouble diagnosis for DTC UXXXX first. Refer to

EC-86, "DTC Index"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If another DTC Confirmation Procedure is conducted just before this procedure, always turn ignition switch

OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is 10 V or more with ignition switch

ON.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 5 seconds.

2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to 

EC-161, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009509480

1.

INSPECTION START

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Disconnect active grille shutter harness connector.

4. Check the continuity between ECM harness connector and active grille shutter harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the error-detected parts.

2.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace active grille shutter. Refer to 

EXT-31, "Removal and Installation"

.

NO

>> Repair or replace the error-detected parts.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

U0284

LOST COMM (A/GRLL SHTTR 
MDL A)
(Lost communication with ac-
tive grille air shutter module A)

When ECM cannot receive the engine 
communication signal from active grille 
shutter.

• Harness and connectors

(Engine communication line is open or cir-
cuit shorted.)

• Active grille shutter

+

–

Continuity

ECM

Active grille shutter

Connector

Terminal

Connector

Terminal

F11

70

E303

2

Existed