Infiniti F50. Manual - part 805

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

SRS-7

SRS

Front Seat Belt Pre-Tensioner With Load Limiter

EHS0009F

The seat belt pre-tensioner system with load limiter is installed to
both the driver's seat and the front passenger's seat. It operates
simultaneously with the SRS air bag system in the event of a frontal
collision with an impact exceeding a specified level.
When the frontal collision with an impact exceeding a specified level
occurs, seat belt slack resulting from clothing or other factors is
immediately taken up by the pre-tensioner. Vehicle passengers are
securely restrained.
When passengers in a vehicle are thrown forward in a collision and
the restraining force of the seat belt exceeds a specified level, the
load limiter permits the specified extension of the seat belt by the
twisting of the ELR shaft, and a relaxation of the chest-area seat belt
web tension while maintaining force.

Front Side Air Bag

EHS0009G

Front side air bag is built-in type.
The front seat backs with built-in type side air bag have the labels
shown in figure at right.

Side Curtain Air Bag

EHS0009H

The side curtain air bag have the labels shown in figure at right.

SRS444

SHIA0170E

BF-2006D

SRS-8

TROUBLE DIAGNOSIS

PFP:00004

Trouble Diagnoses Introduction

EHS000LZ

CAUTION:

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

●

Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.

●

Keep ground portion clean.

DIAGNOSIS FUNCTION

The SRS self-diagnosis results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:

HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.

Information from Customer

WHAT..... Vehicle model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms

Preliminary Check

Check that the following parts are in good order.

●

Battery (Refer to

SC-4, "How to Handle Battery"

●

Fuse (Refer to

PG-2, "Schematic"

●

System component-to-harness connections