Infiniti G37 Coupe. Manual - part 1074

 

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Infiniti G37 Coupe. Manual - part 1074

 

 

SBC-4

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

3.

CHECK DTC

Perform "Self-diagnosis procedure" of appropriate DTC to check if DTC is detected again.
At this time, always connect CONSULT-III to the vehicle, and then check the diagnosis results in real time on
“DATA MONITOR (AUTO RECORD)”.
There is no priority for each DTC. Record them based on the following rules.
Current malfunction: Record all DTCs detected.
Past malfunction: Record up to 5 DTCs.  When the 6th DTC is detected, it is overwritten to the last recorded
DTC.
Is DTC detected? 

YES

>> GO TO 4.

NO

>> Follow the diagnosis simulation test to check.  Refer to 

GI-38, "Intermittent Incident"

.

4.

PERFORM PRELIMINARY CHECK

Perform Pre-Diagnosis Inspection. Refer to 

SBC-36, "Description"

.

>> GO TO 5.

5.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE

Identify the malfunctioning system with "Diagnosis Chart by Symptom". Refer to 

SBC-36, "Description"

.

With CONSULT-III>>GO TO 6.
Without CONSULT-III>>GO TO 7 (Parts system).
Without CONSULT-III>>GO TO 8 (Power supply, ground system).

6.

PERFORM DTC CONFIRMATION PROCEDURE"

Perform the inspection with "DTC REPRODUCTION PROCEDURE" of the applicable system.

>> GO TO 7.

7.

DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Identify the malfunctioning part with "Diagnosis Procedure".

Are malfunctioning parts detected?

YES

>> GO TO 10.

NO

>> GO TO 9.

8.

PERFORM COMPONENT FUNCTION CHECK

Identify the malfunctioning part with "Component Parts Function Inspection".
Are malfunctioning parts detected?

YES

>> GO TO 10.

NO

>> GO TO 9.

9.

PERFORM COMPONENT INSPECTION

Perform the inspection with "Component Parts Inspection".

>> GO TO 10.

10.

REPAIR OR REPLACE THE MALFUNCTIONING PART

Repair or replace the specified malfunctioning parts.
After repairing or replacing, reconnect parts or connector disconnected in "Diagnosis Procedure", and then
erase DTC if necessary. Refer to 

SBC-11, "Diagnosis Description"

.

>> GO TO 11.

11.

FINAL CHECK

Perform "CONSULT-lll function" again to check that the repair is performed correctly.

DIAGNOSIS AND REPAIR WORKFLOW

SBC-5

< BASIC INSPECTION >

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SBC

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Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 4.
Are all malfunctions corrected?

YES

>> • Before delivering the vehicle to the customer, check that that DTC is erased.

• INSPECTION END.

NO

>> DTC is reproduced: GO TO 6.

SBC-6

< FUNCTION DIAGNOSIS >

SEAT BELT TENSION REDUCER SYSTEM

FUNCTION DIAGNOSIS

SEAT BELT TENSION REDUCER SYSTEM

System Diagram

INFOID:0000000001711964

System Description

INFOID:0000000001711965

• The seat belt tension reducer is adopted as the standard for front seat of all models.
• During seat belt tension reducer operation, the tension reducer reduces the retracting force of the spring in

the seat belt to decrease the feeling of pressure.

OPERATION DESCRIPTION

• When turning the ignition switch to ON, the power is supplied to the front seat tension reducer terminal 1.
• When fastening the seat belt (turning the seat belt buckle switch to ON) with ignition switch ON, the power is

grounded from front seat tension reducer terminal 2 to front seat belt buckle switch terminal 3, and seat belt
buckle switch terminal 2 via seat belt buckle switch. Then, the tension reducer is turned to ON to hold the
belt.

• When releasing the seat belt (turning the seat belt buckle switch to OFF), the circuit is not grounded. The

tension reducer is turned to OFF, and then the belt is not held.

JMHIA0428GB

SEAT BELT TENSION REDUCER SYSTEM

SBC-7

< FUNCTION DIAGNOSIS >

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Component Parts Location

INFOID:0000000001711966

Component Description

INFOID:0000000001711967

1.

Seat belt buckle

A.

Back of center pillar lower garnish 

B.

Tension reducer connector

C. Seat belt buckle switch connector

JMHIA0097ZZ

Component

Function

Seat belt buckle switch

Perform the control of tension reducer according to the seat belt buckle switch 
ON/OFF in the seat belt buckle.

Tension reducer

When the seat belt buckle switch is turned ON, the tension reducer in the tension 
reducer seat belt is turned ON. It reduces the retracting force for seat belt.

 

 

 

 

 

 

 

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