Nissan March K13. Manual - part 160

DIAGNOSIS AND REPAIR WORKFLOW

EC-101

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YES

>> GO TO 7.

NO

>> GO TO 9.

7.

PERFORM “SPEC” IN DATA MONITOR MODE

With CONSULT-III

Make sure that “MAS A/F SE-B1”, “B/FUEL SCHDL” and “A/F ALPHA-B1” are within the SP value in “SPEC”
of “DATA MONITOR” mode with CONSULT-III. Refer to 

EC-115, "Component Function Check"

.

Is the measurement value within the SP value?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART BY TROUBLE DIAGNOSIS - SPECIFICATION VALUE

Detect malfunctioning part according to 

EC-116, "Diagnosis Procedure"

.

Is malfunctioning part detected?

YES

>> GO TO 11.

NO

>> GO TO 9.

9.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE

Detect malfunctioning system according to 

EC-299, "Symptom Table"

 based on the confirmed symptom in

step 4, and determine the trouble diagnosis order based on possible causes and symptom.

>> GO TO 10.

10.

DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

Inspect according to Diagnosis Procedure of the system.
NOTE:
The Diagnosis Procedure in EC section described based on open circuit inspection. A short circuit inspection
is also required for the circuit check in the Diagnosis Procedure. For details, refer to 

GI-35, "Circuit Inspec-

tion"

.

Is malfunctioning part detected?

YES

>> GO TO 11.

NO

>> Monitor input data from related sensors or check the voltage of related ECM terminals using CON-

SULT-III. Refer to 

EC-65, "Reference Value"

.

11.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.

2.

Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.

3.

Check DTC. If DTC is displayed, erase it. Refer to “How to Erase DTC and 1st trip DTC” in 

EC-45, "Diag-

nosis Description"

.

>> GO TO 12.

12.

FINAL CHECK

When DTC was detected in step 2, perform DTC CONFIRMATION PROCEDURE or Component Function
Check again, and then make sure that the malfunction have been repaired securely.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and make sure
that the symptom is not detected.
Is DTC detected and does symptom remain?

YES-1 >> DTC is detected: GO TO 10.
YES-2 >> Symptom remains: GO TO 6.
NO

>> Before returning the vehicle to the customer, make sure to erase unnecessary DTC in ECM.

(Refer to “How to Erase DTC and 1st trip DTC” in 

EC-45, "Diagnosis Description"

.) If the comple-

tion of SRT is needed, drive vehicle under the specific “DRIVING PATTERN” in 

EC-80,

"How to Set SRT Code"

.

EC-102

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DIAGNOSIS AND REPAIR WORKFLOW

Diagnostic Work Sheet

INFOID:0000000005989209

DESCRIPTION

There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the WORKSHEET SAMPLE
below in order to organize all the information for troubleshooting.
Some conditions may cause the MIL to come on steady or blink and
DTC to be detected. Examples:
Vehicle ran out of fuel, which caused the engine to misfire.

WORKSHEET SAMPLE

SEF907L

MTBL0017

ADDITIONAL SERVICE WHEN REPLACING ECM

EC-103

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ADDITIONAL SERVICE WHEN REPLACING ECM

Description

INFOID:0000000005989210

When replacing ECM, this procedure must be performed.

Work Procedure

INFOID:0000000005989211

1.

PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS IGNITION KEY IDS

Refer to 

SEC-36, "ECM : Work Procedure"

 (With intelligent key system), 

SEC-142, "ECM : Work Procedure"

(Without intelligent key system).

>> GO TO 2.

2.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

Refer to 

EC-104, "Work Procedure"

.

>> GO TO 3.

3.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to 

EC-105, "Work Procedure"

.

>> GO TO 4.

4.

PERFORM IDLE AIR VOLUME LEARNING

Refer to 

EC-106, "Work Procedure"

.

>> END

EC-104

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ACCELERATOR PEDAL RELEASED POSITION LEARNING

ACCELERATOR PEDAL RELEASED POSITION LEARNING

Description

INFOID:0000000005989212

Accelerator Pedal Released Position Learning is a function of ECM to learn the fully released position of the
accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each
time harness connector of accelerator pedal position sensor or ECM is disconnected.

Work Procedure

INFOID:0000000005989213

1.

START

1.

Make sure that accelerator pedal is fully released.

2.

Turn ignition switch ON and wait at least 2 seconds.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

Turn ignition switch ON and wait at least 2 seconds.

5.

Turn ignition switch OFF and wait at least 10 seconds.

>> END