Isuzu N-Series. Manual - part 1180

SRS 9B-3

Damaged Lead Wire of SRS Part
If the lead wire of parts for SRS airbag, combination
switch assembly (including SRS coil assembly), etc. is
damaged, replace all the parts (including lead wire).

Procedure to Stop the Function of SRS

Removal
Turn the starter switch to “LOCK”, and remove the key.

1. Disconnect the SRS fuse from the fuse box on the

upper right portion of dashboard or disconnect ter-
minal of battery.

2. Disconnect the 2-pole connector (yellow) located

in the lower portion of steering column. (for SRS
airbag)

Caution:

When removing SRS fuse and turn starter switch to ON,
SRS warning lamp remains on. This is normal condition.

Procedure to Resume the Function of SRS

Installation

WARNING:

DO NOT USE SRS AIRBAG OF OTHER VEHICLE OR
MODEL. BE SURE TO CONFIRM THE PART NUM-
BER TO USE APPROPRIATE SRS AIRBAG.

Turn the starter switch to “LOCK”, and remove the key.

1. Connect the 2-pole connector (yellow) located in

the lower portion of steering column and confirm
that it is connected securely.

2. Install the SRS fuse to fuse box on the upper right

portion of dashboard.

Turn the starter switch to “ON”, and confirm that the
“SRS” warning lamp goes off after it blinks seven times.
If the “SRS” warning lamp does not operate in that way,
perform “Function check: SRS system check” in “SRS
control system” in SRS Control System section.

Precautions on Handling/Installation/Diagnosis

• Do not expose SRS airbag to temperature of 93

°C

(199

°F) or more.

• If SRS airbag and SRS control unit are dropped

down with some sort of reason, do not use them.

• If disconnecting connectors related to SRS airbag

and SRS control unit during repair, be sure to make
sure that they are connected completely during re-
assembly.

• When replacing SRS control unit, install it to

mounting surface correctly. Be sure to make sure
there is no dust or other foreign matter on mounting
surface of SRS control unit.

• When installing airbag parts, be sure to install them

with specified tightening torque.

•  Do not energize the system unless all SRS system

parts are connected or diagnosis chart requires. If
energizing the system, unnecessary diagnostic
trouble code will be set in SRS control unit.

• Never diagnose the circuit using other than speci-

fied tester.

• At first, perform “SRS system check”. “SRS system

check” checks whether “SRS” warning lamp oper-
ates properly and proceeds to appropriate chart to
judge the function fault of system. Failure to per-
form this procedure leads to longer diagnosis peri-
od, wrong diagnosis or replacement of wrong part.

9B-4 SRS

About Caution Labels
Caution labels, which describe exclusive precautions for
driver’s SRS airbag, are attached on vehicle at five loca-
tions.

1

2

3

4

N9A0016E

SRS 9B-5

1. Backside of sun visor

2. Backside of SRS airbag

N9A0018E

N9A0019E

9B-6 SRS

3. SRS coil assembly

4. SRS control unit

A

B

H

I

C

D

E

F

G

J

K

L

M

N

YELLOW

A: Notice
B: SRS coil
C: 1. Do not rotate the SRS coil for more than 3 turns in either direction

from the neutral point. Doing so may

D: cause damage to the SRS coil.

2. Do not overhaul.
3. Do not let any oil or grease.

E: Mounting Instructions
F: 1. Straighten the front tires.

2. Rotate the SRS coil, fully clockwise, and then turn it back 4 turns.

G: 3. Align the neutral mark (     ).

4. See the service manual for details.

H - N:  Written in Chinese.

N9A0084E

N9A0021E