Page 57 of 1807
IN04E-02
BO4111
Negative Cable
IN-10
- INTRODUCTIONFOR ALL OF VEHICLES
10 Author: Date:
1997 SUPRA (RM502U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG
(a) The TOYOTA SUPRA is equipped with an SRS (Supple-
mental Restraint System), such as the driver airbag, front
passenger airbag.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE
(1) Malfunction symptoms of the supplemental re-
straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI-555).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ºLOCKº posi-
tion and the negative (-) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back-up power source so that if work is
started within 90 seconds of disconnecting the neg-
ative (-) terminal cable from the battery, the SRS
may deploy.)
When the negative (-) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized by
the audio memory system. Then when work is fin-
ished, reset the clock and audio systems as before.
To avoid erasing the memory of each memory sys-
tem, never use a back-up power supply from out-
side the vehicle.
Page 157 of 1807
BE0DL-01
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-1
1979 Author: Date:
1997 SUPRA (RM502U)
BODY ELECTRICAL SYSTEM
PRECAUTION
Take care to observe the doing precautions when performing inspections or removal and replacement of
body electrical related parts.
1. HEADLIGHT SYSTEM
Halogen bulbs have pressurized gas inside and require special handling. They can burst if scratched or
dropped. Hold a bulb only by its plastic or metal case.
Don't touch the glass part of a bulb with bare hands.
2. SRS (SUPPLEMENTAL RESTRAINT SYSTEM)
The SUPRA is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front
passenger airbag. Failure to carry out service operation in the correct sequence could cause the SRS to
unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including re-
moval or installation of parts, inspection or replacement), be sure to read the precautionary notices in the
RS section.
3. AUDIO SYSTEM
If the negative (-) terminal cable is disconnected from the battery, the preset AM, FM 1 and FM 2 sta-
tions stored in memory are erased, so be sure to note the stations and reset them after the battery
terminal is reconnected.
If the negative (-) terminal cable is disconnected from the battery, the ºANTI-THEFT SYSTEMº will
operate when the cable is reconnected, but the radio, tape player and CD player will not operate. Be
sure to input the correct ID number so that the radio, tape player and CD player can be operated again.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.
Page 487 of 1807
FOR THE TOYOTA DEALER
COLLISION REPAIR INFORMATION
TITLE: SRS AIRBAG COMPONENT REPLACEMENT PAGE 1 of 6
SECTION: ELECTRICAL BULLETIN #79
MODELS: ALL
DATE: AUGUST 1997
After an airbag has been deployed during a collision, it will be necessary to replace certain
components of the airbag system. Technicians can identify these parts by using the
attached matrix.
If the airbag does not deploy, yet the combination meter (airbag warning light) stays on for
more that 10 seconds after the key is turned to the ªACCº or ªONº position, it is necessary
to perform a diagnostic test. Always refer to the Toyota repair manual for the correct repair
procedure.
The attached information includes:
A matrix indicating components requiring replacement (pages 2±4).
Parts replacement note (page 5).
An example repair manual page outlining the diagnostic procedure available in
each model specific repair manual (page 6).
Toyota recommends the use of electrical repair kit (P/N 00002±04200±01) for any wiring
repairs. This kit includes a selection of numerous repair connectors, terminal ends, a repair
procedures manual and special tools specific to Toyota. The
replacement electrical wire
and connector (from the wire harness to the front sensors) is P/N 82988±24010.
Toyota also offers a video package which shows the operation of the SRS airbag system
(P/N 00401±42994).
CAUTION: SRS Airbag service work can be performed only AFTER 90 SECONDS
from the time the ignition switch is turned to the ªlockº position and the
negative (±) terminal cable is disconnected from the battery.
NOTE: PLEASE ROUTE THIS BULLETIN TO YOUR COLLISION REPAIR CENTER
MANAGER!
Page 494 of 1807
SRS COMPONENT REPLACEMENT (cont'd) PAGE 2 of 4
CAUTION: SRS Airbag service work can be performed only AFTER 90 SECONDS
from the time the ignition switch is turned to the ªlockº position and the
negative (±) terminal cable is disconnected from the battery.
This is an example from a Toyota Repair Manual. Always refer to the repair manual
applicable to the model and year of the vehicle you are diagnosing.
Page 497 of 1807
FOR THE TOYOTA DEALER
COLLISION REPAIR INFORMATION
TITLE: SRS AIRBAG COMPONENT REPLACEMENT PAGE 1 of 6
SECTION: ELECTRICAL BULLETIN #79
MODELS: ALL
DATE: AUGUST 1997
After an airbag has been deployed during a collision, it will be necessary to replace certain
components of the airbag system. Technicians can identify these parts by using the
attached matrix.
If the airbag does not deploy, yet the combination meter (airbag warning light) stays on for
more that 10 seconds after the key is turned to the ªACCº or ªONº position, it is necessary
to perform a diagnostic test. Always refer to the Toyota repair manual for the correct repair
procedure.
The attached information includes:
A matrix indicating components requiring replacement (pages 2±4).
Parts replacement note (page 5).
An example repair manual page outlining the diagnostic procedure available in
each model specific repair manual (page 6).
Toyota recommends the use of electrical repair kit (P/N 00002±04200±01) for any wiring
repairs. This kit includes a selection of numerous repair connectors, terminal ends, a repair
procedures manual and special tools specific to Toyota. The
replacement electrical wire
and connector (from the wire harness to the front sensors) is P/N 82988±24010.
Toyota also offers a video package which shows the operation of the SRS airbag system
(P/N 00401±42994).
CAUTION: SRS Airbag service work can be performed only AFTER 90 SECONDS
from the time the ignition switch is turned to the ªlockº position and the
negative (±) terminal cable is disconnected from the battery.
NOTE: PLEASE ROUTE THIS BULLETIN TO YOUR COLLISION REPAIR CENTER
MANAGER!
