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Nissan Versa Sedan. Manual - part 289

POWER SUPPLY AND GROUND CIRCUIT

EC-155

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000009267052

CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E15. Refer to Ground Inspection in

GI-48, "Circuit Inspection"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair or replace ground connection.

CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT

1. Disconnect ECM harness connectors.

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

3. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 3.

DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E55, F55

• Harness for open or short between ECM and ground

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

CHECK ECM POWER SUPPLY CIRCUIT-I

1. Reconnect ECM harness connectors.

2. Turn ignition switch ON.

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

Is the inspection result normal?

YES

>> GO TO 6.

>> GO TO 5.

DETECT MALFUNCTIONING PART

Check the following.

• 10 A fuse (No. 55)

• Harness for open or short between ECM and fuse

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

CHECK ECM POWER SUPPLY CIRCUIT-II

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

2. Turn ignition switch ON and then OFF.

ECM

Ground

Continuity

Connector

Terminal

F10

Ground

Existed

E16

108

ECM

Ground

Voltage

Connector

Terminal

E16

Ground

Battery voltage

EC-156

< 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.

>> GO TO 9.

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.

>> Replace IPDM E/R. Refer to

PCS-30, "Removal and Installation"

(WITH I-KEY) or

PCS-56,

"Removal and Installation"

(WITHOUT I-KEY).

CHECK INTERMITTENT INCIDENT

Refer to

GI-45, "Intermittent Incident"

>> INSPECTION END

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.

>> 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.

>> 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

Ground

Battery voltage

ECM

Ground

Voltage

Connector

Terminal

F10

Ground

Battery voltage

ECM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

F10

F43

Existed

POWER SUPPLY AND GROUND CIRCUIT

EC-157

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

• 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.

>> 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.

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

14.

CHECK INTERMITTENT INCIDENT

Refer to

GI-45, "Intermittent Incident"

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to

PCS-30, "Removal and Installation"

(WITH I-KEY) or

PCS-56,

"Removal and Installation"

(WITHOUT I-KEY).

>> Repair or replace harness or connectors.

ECM

IPDM E/R

Continuity

Connector

Terminal

Connector

Terminal

E16

105

E44

Existed

EC-158

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

U0101 CAN COMM CIRCUIT

U0101 CAN COMM CIRCUIT

Description

INFOID:0000000009267053

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:0000000009267054

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

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-158, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267055

Perform the trouble diagnosis for CAN communication system. Refer to

LAN-15, "Trouble Diagnosis Flow

Chart"

DTC No.

Trouble diagnosis name

(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

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