1997 TOYOTA SUPRA instrument panel
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R07175
Stop Light Switch
Push Rod
Pedal HeightBR1AW-01
BR4980
A
R00085
Pedal Freeplay
- BRAKEBRAKE PEDAL
BR-7
1807 Author: Date:
1997 SUPRA (RM502U)
BRAKE PEDAL
ON-VEHICLE INSPECTION
1. CHECK THAT PEDAL HEIGHT IS CORRECT
Pedal height from asphalt sheet:
154.2 - 164.2 mm (6.071 - 6.465 in.)
If the pedal height is incorrect, adjust it.
2. IF NECESSARY, ADJUST PEDAL HEIGHT
(a) Remove the lower instrument panel and finish panel.
(b) Disconnect the connector from the stop light switch.
(c) Loosen the stop light switch lock nut and remove the stop
light switch.
(d) Loosen the push rod lock nut.
(e) Adjust the pedal height by turning the pedal push rod.
(f) Tighten the push rod lock nut.
Torque: 25 N´m (260 kgf´cm, 19 ft´lbf)
(g) Install the stop light switch and turn it until it lightly con-
tacts the pedal stopper.
(h) Turn the stop light switch back one turn.
(i) Check the clearance (A) between stop lights switch and
pedal.
Clearance: 0.5 - 2.4 mm (0.020 - 0.094 in.)
(j) Tighten the stop light switch lock nut.
(k) Connect the connector to the stop light switch.
(l) Check that the stop lights come on when the brake pedal
is depressed, and go off when the brake pedal is re-
leased.
(m) After adjusting the pedal height, check the pedal freeplay.
If clearance (A) between the stop light switch and the brake
pedal stopper has been adjusted correctly, the pedal freeplay
will meet the specifications.
(n) Install the lower instrument panel and finish panel.
3. CHECK PEDAL FREEPLAY
(a) Stop the engine and depress the brake pedal several
times until there is no more vacuum left in the booster.
(b) Push in the pedal by hand until the second point of resis-
tance begins to be felt, then measure the distance, as
shown.
Pedal freeplay: 1 - 6 mm (0.04 - 0.24 in.)
If incorrect, check the stop light switch clearance. If the clear-
ance is OK, then troubleshoot the brake system.
Page 444 of 1807
LOCATION OF PLASTIC BODY PARTS
Outer Rear View Mirror (ABS)
Front Door Outside Handle (PC)
Instrument Panel Safety Pad (PVC/PUR)
Rear Spoiler (SMC/UP)
Cowl Top Ventilator Louver (PP)
Hood Bulge (BMC)
Headlamp (PC/PP)
Quarter Lower
Moulding (PP)
Quarter Panel Air Inlet
Garnish (PUR)
Body Rocker Panel Moulding (PP) Front Bumper Extension
Mounting Bracket (PP)
Front Fender Moulding (PP)
Side Turn Signal Lamp (SAN/ABS)
Front Side Marker Lamp (PMMA/ABS)
Front Bumper Cover (PUR)
Front Active Spoiler (PUR)
HINT:
w Resin material differs with model.
/ Made up of 2 or more kinds of materials.
PLASTIC BODY PARTSPP-4
Page 491 of 1807
SRS AIRBAG COMPONENT REPLACEMENT (cont'd) PAGE 5 of 6
Component Replacement Notes
Note 1 ± Replace the following items:
Instrument panel
Center console bracket support
Note 2 ± Replace the following items if deformed:
Instrument panel
Instrument panel reinforcement
Glove compartment
Glove compartment door
Note 3 ± Replace the following items:
Instrument panel reinforcement
Glove compartment
Glove compartment door
Note 3a ± Replace the following items:
Instrument panel
Instrument panel reinforcement
Glove compartment door
Note 4 ± If the SRS wire harness assembly is damaged:
Use a repair wire specially designed for use in the SRS airbag system at the front
sensor (P/N 82988±24010).
OR
Replace the entire wire harness assembly.
Note 4a ± Replace wire harness if damaged.
Repair only if wire harness connector is damaged.
Note 4b ± Replace wire harness if damaged.
Note 5 ± Replace the following items if deformed:
Steering wheel
Spiral cable
Note 6 ± Replace center airbag sensor assembly if:
Center airbag sensor assembly has been found faulty in troubleshooting
Center airbag sensor assembly has been found faulty during the following checks:
1. Deformation of the bracket or case
2. Vinyl seal broken
3. Damage to connector
Center airbag sensor assembly has been dropped.
Page 496 of 1807
SRS COMPONENT REPLACEMENT (cont'd) PAGE 4 of 4
Component Replacement Notes
Note 1 ± Visually inspect and replace the following items if deformed:
Instrument panel and center console bracket support
Note 2 ± Visually inspect and replace the following items if deformed:
Instrument panel and Instrument panel reinforcement
Glove compartment and glove compartment door
Note 2a ± Same as note 2 without involving the glove compartment.
Note 3 ± If the SRS wire harness is damaged only at the connectors to the front
sensors:
Use a repair wire specially designed for use in the SRS airbag system at the front sensor
(PN 82988±24010/50010/33010).
OR
Replace the entire wire harness assembly.
Note 3a ± Replace the entire wire harness if damaged or has been found to be faulty
during troubleshooting.
Note 4 ± Replace the following items if deformed or if diagnostic tests show a fault:
Steering wheel (If the horn button contact plate has been deformed, never attempt to
repair it±always replace the steering wheel).
Spiral cable
Note 5 ± Replace center airbag sensor assembly if:
Center airbag sensor assembly has been found faulty in troubleshooting.
Center airbag sensor assembly shows evidence of the following:
1. Deformation of the bracket or case
2. Vinyl seal broken
3. Damage to connector
Center airbag sensor assembly has been dropped.
Note 6 ± Replace side impact sensors and side airbag assembly with seat cover if
deployed. Side airbag circuits are independent from each other, and one
side may deploy while the other does not.
Note 7 ± 1998 Tacoma is equipped with a passenger airbag cutoff switch. If the
switch is ªOFFº when impact occurs, replace the switch. If the switch is in
the ªONº position when impact occurs, and the passenger airbag deploys,
check the switch as directed by the Repair Manual.
Page 501 of 1807
SRS AIRBAG COMPONENT REPLACEMENT (cont'd) PAGE 5 of 6
Component Replacement Notes
Note 1 ± Replace the following items:
Instrument panel
Center console bracket support
Note 2 ± Replace the following items if deformed:
Instrument panel
Instrument panel reinforcement
Glove compartment
Glove compartment door
Note 3 ± Replace the following items:
Instrument panel reinforcement
Glove compartment
Glove compartment door
Note 3a ± Replace the following items:
Instrument panel
Instrument panel reinforcement
Glove compartment door
Note 4 ± If the SRS wire harness assembly is damaged:
Use a repair wire specially designed for use in the SRS airbag system at the front
sensor (P/N 82988±24010).
OR
Replace the entire wire harness assembly.
Note 4a ± Replace wire harness if damaged.
Repair only if wire harness connector is damaged.
Note 4b ± Replace wire harness if damaged.
Note 5 ± Replace the following items if deformed:
Steering wheel
Spiral cable
Note 6 ± Replace center airbag sensor assembly if:
Center airbag sensor assembly has been found faulty in troubleshooting
Center airbag sensor assembly has been found faulty during the following checks:
1. Deformation of the bracket or case
2. Vinyl seal broken
3. Damage to connector
Center airbag sensor assembly has been dropped.
Page 562 of 1807
DI4SH-01
FI0534
Q08242
TOYOTA Hand-Held Tester
DLC3
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-147
375 Author: Date:
1997 SUPRA (RM502U)
PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Description
When troubleshooting OBD II vehicles, the only differ-
ence from the usual troubleshooting procedure is that you
connect to the vehicle the OBD II scan tool complying with
SAE J1978 or TOYOTA hand-held tester, and read off
various data output from the vehicle's ECM.
OBD II regulations require that the vehicle's on-board
computer lights up the Malfunction Indicator Lamp (MIL)
on the instrument panel when the computer detests a
malfunction in the computer itself or in drive system com-
ponents which affect vehicle emissions. In addition to the
MIL lighting up when a malfunction is detected, the appli-
cable Diagnostic Trouble Codes (DTC) prescribed by
SAE J2012 are recorded in the ECM memory.
(See page DI-158)
If the malfunction does not reoccur in 3 trips, the MIL goes
off but the DTC remain recorded in the ECM memory.
To check the DTC, connect the OBD II scan tool or TOYO-
TA hand-held tester to Data Link Connector 3 (DLC3) on
the vehicle. The OBD II scan tool or TOYOTA hand-held
tester also enables you to erase the DTC and check
freezed frame data and various forms of engine data. (For
operating instructions, see the OBD II scan tool's instruc-
tion book.)
DTC include SAE controlled codes and Manufacturer
controlled codes.
SAE controlled codes must be set as prescribed by the
SAE, while Manufacturer controlled codes can be set
freely by the manufacturer within the prescribed limits.
(See DTC chart on page DI-158)
The diagnosis system operates in normal mode during
normal vehicle use. It also has a check mode for techni-
cians to simulate malfunction symptoms and trouble-
shoot. Most DTC use 2 trip detection logic* to prevent er-
roneous detection and ensure thorough malfunction
detection. By switching the ECM to check mode when
troubleshooting, the technician can cause the MIL to light
up for a malfunction that is only detected once or momen-
tarily. (TOYOTA hand-held tester only)
(See page DI-147)
*2 trip detection logic: When a logic malfunction is first de-
tected, the malfunction is temporarily stored in the ECM
memory. If the same malfunction is detected again during
the second drive test, this second detection causes the
MIL to light up.
Page 565 of 1807
FI3605
Flashing
ON
OFF
0.13 Seconds DI-150
- DIAGNOSTICSENGINE (2JZ-GTE)
378 Author: Date:
1997 SUPRA (RM502U)
TOYOTA hand-held tester only:
Compared to the normal mode, the check mode has an in-
creased sensitivity to detect malfunctions.
Furthermore, the same diagnostic items which are detected in
the normal mode can also be detected in the check mode.
(a) Check the DTC.
(1) Initial conditions.
Battery positive voltage 11 V or more.
Throttle valve fully closed.
Transmission in park or neutral position.
Air conditioning switched OFF.
(2) Turn ignition switch OFF.
(3) Prepare the TOYOTA hand-held tester.
(4) Connect the TOYOTA hand-held tester to DLC3 at
the lower left of the instrument panel.
(5) Turn the ignition switch ON and switch the TOYOTA
hand-held tester ON.
(6) Switch the TOYOTA hand-held tester normal mode
to check mode. (Check that the MIL flashes.)
(7) Start the engine. (The MIL goes out after the engine
start.)
(8) Simulate the conditions of the malfunction de-
scribed by the customer.
NOTICE:
Leave the ignition switch ON until you have checked the
DTC, etc.
(9) After simulating the malfunction conditions, use the
TOYOTA hand-held tester diagnosis selector to
check the DTC and freezed frame data, etc.
HINT:
Take care not to turn the ignition switch OFF. Turning the ignition
switch OFF switches the diagnosis system from check mode to
normal mode, so all DTC, etc. are erased.
(10) After checking the DTC, inspect the applicable cir-
cuit.
(b) Clear the DTC.
The following actions will erase the DTC and freezed frame
data.
(1) Operating the OBD II scan tool (complying with SAE
J1978) or TOYOTA hand-held tester to erase the
codes. (See the OBD II scan tool's instruction book
for operating instructions.)
(2) Disconnecting the battery terminals or EFI fuse.
NOTICE:
If the TOYOTA hand-held tester switches the ECM from
normal mode to check mode or vice-versa, or if the ignition
switch is turned from ON to ACC or OFF during check
mode, the DTC and freezed frame data will be erased.
Page 909 of 1807
I02538
10 (+)9 (-)
DI-618
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
846 Author: Date:
1997 SUPRA (RM502U)
INSPECTION PROCEDURE
1 Check indicator light.
PREPARATION:
(a) Remove instrument panel cluster finish panel.
(b) Disconnect telltale light RH connector.
CHECK:
Connect positive lead to terminal 10 and negative lead to
terminal 9 of indicator light connector.
OK:
Indicator light comes on.
NG Replace telltale light RH.
OK
2 Check harness and connector between theft deterrent and door lock ECU and
indicator light, indicator light and body ground (See page IN-28).
NG Repair or replace harness or connector.
OK
Check and replace theft deterrent and door
lock ECU. *
1
*1:
When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered
circuit inspection shown on matrix chart (See page DI-615).