Isuzu Trooper (1998-2002 year). Manual - part 1086

SUPPLEMENTAL RESTRAINT SYSTEM

9J–31

CAUTION: Refer to “SDM Replacement Guidelines”
below for important information on SDM
replacement in both deployment and
non–deployment crashes.
Inspect SRS coil assembly wiring and steering wheel for
any sign of scorching, melting, or damage due to
excessive heat. If coil assembly wire or steering wheel is
damaged, replace them. The steering column and wheel
must be dimensionally checked to determine if they are
damaged. Refer to steering wheel of in this manual.
Never use SRS parts from another vehicle. This does not
include remanufactured parts purchased from an
authorized Isuzu Retailer; they may be used for SRS
repairs.
Do not attempt to repair the SDM, the SRS harness, the
SRS coil assembly, the air bag assembly, the steering
wheel, or the steering column. Service of these items is
replacement only. Verify replacement part numbers.

CAUTION: Proper operation of the SDM and
supplemental restraint system (SRS) requires that
any repairs to the vehicle structure return it to its
original production configuration.

SRS Connectors

CAUTION: The special yellow color connectors are
used for supplemental restraint system air bag circuit.
When removing the oable harnese, do not pull the cables
otherwile, cable disconnection may occur. When connect
the SRS connector, insert the connector completely.
Imperfect locking may cause malfunction of SRS circuit.

Removal

To remove the connector, hold the cover insulator (1) and
pull it. The cover insulator slides and lock will be released.
Do not hold the socket insulator (2).

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SUPPLEMENTAL RESTRAINT SYSTEM

9J–32

Installation

To install the connector, hold the socket insulator (1) and
insert it. The cover insulator slides and connector will be
locked. Do not hold the cover insulator (2).

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SUPPLEMENTAL RESTRAINT SYSTEM

9J–33

Sensing And Diagnostic Module (SDM)

Service Precautions

WARNING: DURING SERVICE PROCEDURES, BE
VERY CAREFUL WHEN HANDLING SDM. NEVER
STRIKE OR JAR SDM. UNDER SOME
CIRCUMSTANCES, IT COULD CAUSE
DEPLOYMENT AND RESULT IN PERSONAL INJURY
OR IMPROPER OPERATION OF THE
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) . SDM
MOUNTING BRACKET BOLTS MUST BE
CAREFULLY TORQUED TO ASSURE PROPER
OPERATION. NEVER POWER UP THE SRS WHEN
SDM IS NOT RIGIDLY ATTACHED TO THE VEHICLE.
THE SDM COULD BE ACTIVATED WHEN POWERED
WHILE NOT RIGIDLY ATTACHED TO THE VEHICLE
WHICH COULD CAUSE DEPLOYMENT AND RESULT
IN PERSONAL INJURY.

WARNING: PROPER OPERATION OF THE SENSING
AND DIAGNOSTIC MODULE (SDM) REQUIRES THE
SDM TO BE RIGIDLY ATTACHED TO THE VEHICLE
STRUCTURE AND THAT THE ARROW ON THE
SENSOR BE POINTING TOWARD THE FRONT OF
THE VEHICLE.

SDM is specifically calibrated and is keyed to the SDM
location SRS wiring harness. Caution should be used to
ensure proper location of the SDM. The keying of the
SDM to its location and wiring harness connectors should
never be modified in the field.

Removal

1. Disable the SRS (Refer to “Disabling the SRS” in this

section).

2. Remove the transmission knob (for M/T) and transfer

lever knob.

3. Remove the front console assembly and disconnect

wiring harness connector.

4. Pull CPA (Connector Position Assurance) out and

push connector lock down to disconnect the SDM
harness connector.

5. Remove the three SDM fixing bolts and remove SDM.

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Legend

(1) SDM
(2) SRS Harness
(3) Connector Position Assurance

Installation

1. Install the SDM on bracket and fixing bolts and tighten

the fixing bolts to the specified torque.

Torque: 10 N·m (1.0 Kg·m/87 Ib in)

2. Connect the SDM harness connector and after that,

put CPA into connector.

3. Install the front console.
4. Install the transmission knob (for M/T) and transfer

lever knob.

SUPPLEMENTAL RESTRAINT SYSTEM

9J–34

5. Enable the SRS (Refer to “Enabling the SRS” in this

section).

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Legend

(1) SDM
(2) SRS Harness
(3) Connector Position Assurance