1996 TOYOTA TERCEL horn

BE4061I05891I09776
1
OFF
Disconnect
(-) (+)
N14682
1
2
(+)
(-)
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-229
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
1 Check voltage between terminal 1 of theft deterrent horn connector and body
ground.
PREPARATION:
Remove the theft deterrent horn and disconnect the connector.
CHECK:
Measure voltage between terminal 1 of theft deterrent horn
connector and body ground.
OK:
Voltage: 10 - 14V
NG Check and repair harness and connector be-
tween HORN fuse and theft deterrent horn.
OK
2 Check theft deterrent horn.
CHECK:
Connect positive
lead to terminal 1 and negative  lead to
terminal 2 to theft deterrent horn connector.
OK:
Theft deterrent horn blows.
NG Replace theft deterrent horn.
OK

DI-230
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1996 TERCEL (RM440U)
3 Check harness and connector between theft deterrent ECU and theft deterrent
horn (See page IN-26).
NG Check and repair harness or connector.
OK
Check and replace theft deterrent ECU.

N20820
BatteryMAIN FL
B1
EA2 HAZ-HORN
2 W2Engine Room Relay Block
Horn Relay
11
2
2IC1G-Y24
T4
G-R
1
HORNTheft Deterrent ECU
HORN
H4 G-Y
B
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-231
1996 TERCEL (RM440U)
Horn Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch on and off in approximately
0.4 sec. cycles. This switches the horn relay on and off, thus the horns blow (See the wiring diagram below).
In this condition, if any of the following operations is done, the Tr in the ECU goes off and the horn relay
switches off, thus stopping the horns from blowing:
(1) Unlock the front LH or RH door with key.
(2) Turn the ignition switch to ACC or ON position.
(3) Unlock the doors with the wireless door lock control system.
(4) Wait for approximately 60 seconds.
WIRING DIAGRAM
DI4N7-01

BE4061I05892I09777
HORN
(+) (-)OFF
Disconnect
DI-232
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
HINT:
The flow chart below is based on the premise that the horns blow normally whenever the horn switch is oper-
ated.
1 Check voltage between terminal HORN of theft deterrent ECU connector and
body ground.
PREPARATION:
Disconnect the theft deterrent ECU connectors.
CHECK:
Measure voltage between terminal HORN of theft deterrent
ECU connector and body ground.
OK:
Voltage: 10~14V
OK Check and replace theft deterrent ECU.
NG
Check and repair harness and connector between theft deterrent ECU and horn relay.

RS0QB-03
H17548
H14642
Horn Button Contact Plate
N12248
- SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS-9
1996 TERCEL (RM440U)
INSPECTION
1. VEHICLE NOT INVOLVED IN COLLISION
(a) Do a diagnostic system check (See page DI-148).
(b) Do a visual check which includes the following items with
the steering wheel pad (with airbag) installed in the ve-
hicle.
Check for cuts, minute cracks or marked discoloration of
the steering wheel pad top surface and grooved portion.
2. VEHICLE INVOLVED IN COLLISION AND AIRBAG IS
NOT DEPLOYED
(a) Do a diagnostic system check (See page DI-148).
(b) Do a visual check which includes the following items with
the steering wheel pad (with airbag) installed in the ve-
hicle.

Check for cuts and cracks in, or marked discolor-
ation of the steering wheel pad top surface and
grooved portion.

Check for cuts and cracks in wire harnesses, and for
chipping in connectors.

Check for deformation of the horn button contact
plate of the steering wheel.
HINT:

If the horn button contact plate of the steering wheel is de-
formed, never repair it. Always replace the steering wheel
assembly with a new one.

There should be no interference between the steering
wheel pad and the steering wheel, and the clearance
should be uniform all the way around when the new steer-
ing wheel pad is installed on the steering wheel.

RS-10
- SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
1996 TERCEL (RM440U)
CAUTION:
For removal and installation of the steering wheel pad, see
page SR-13 and SR-20, and be sure to follow the correct
procedure.
3. VEHICLE INVOLVED IN COLLISION AND AIRBAG IS
DEPLOYED
(a) Do diagnostic system check (See page DI-148).
(b) Do a visual check which includes the following items with
the steering wheel pad (with airbag) removed from the ve-
hicle.

Check for deformation of the horn button contact
plate of the steering wheel.

Check for damage to the spiral cable connector and
wire harness.
HINT:

If the horn button contact plate of the steering wheel is de-
formed, never repair it. Always replace the steering wheel
assembly with a new one.

There should be no interference between the steering
wheel pad and the steering wheel, and the clearance
should be uniform all the way around when the new steer-
ing wheel pad is installed on the steering wheel.

BE-4
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
1996 TERCEL (RM440U) Taillight does not light up. (Headlight does not light up)
1. Light Control Switch
2. Headlight Bulb
3. Wire HarnessBE-16
-
-
Headlight does not light up with light control SW in HEAD.
1. Light Control Switch
2. D.R.L. Main Relay
3. D.R.L. No.4 Relay (R/B No.5)
4. Daytime Resistor
5. Wire HarnessBE-16
BE-16
BE-16
BE-16
-
Headlight does not go out with light control SW in OFF.1. Headlight Control Relay (Engine Room R/B)
2. Wire HarnessBE-16
-
Taillight does not light up with light control SW in TAIL.
1. Taillight Control Relay (I/P J/B)
2. Light Control Switch
3. Wire HarnessBE-16
BE-16
-
Taillight does not go out with light control SW in OFF.
1. Taillight Control Relay (I/P J/B)
2. Light Control Switch
3. Wire HarnessBE-16
BE-16
-
Headlight do not light up with engine running and light control SW
in OFF.
1. DOME Fuse (Engine Room R/B)
2. ECU-IG Fuse (I/P J/B)
3. DRL Fuse (Engine Room R/B)
4. D.R.L. Main Relay
5. D.R.L. No.4 Relay (R/B No.5)
6. Daytime Resistor
7. Wire Harness
8. Generator L Terminal
9. Parking Brake Switch
10.Brake Fluid Level Warning Switch-
-
-
BE-16
BE-16
BE-16
-
-
BE-38
BE-38
TURN SIGNAL AND HAZARD WARNING SYSTEM
TroubleParts nameSee page
ºHazardº and ºTurnº do not light up.
1. Hazard Warning Switch
2. Turn Signal Flasher
3. Wire HarnessBE-22
BE-22
-
No of blinks for Hazard.
(Turn is abnormal)1. Bulb
2. Turn Signal Flasher
3. Wire Harness-
BE-22
-
Hazard warning light does not light up.
(Turn signal is normal)1. HAZ-HORN Fuse (Engine Room R/B)
2. Wire Harness-
-
Hazard waning light does not light up in one direction.1. Hazard Warning Switch
2. Wire HarnessBE-22
-
Turn signal does not light up.
(Combination meter, wiper and washer do not operate.)
1. Ignition Switch
2. TURN Fuse (Engine Room R/B)
3. Turn Signal Switch
4. Wire HarnessBE-1 1
-
BE-22
-
Turn signal does not light up.
(Combination meter, wiper and washer are normal.)1. TURN Fuse (Engine Room R/B)
2. Turn Signal Switch
3. Wire Harness-
BE-22
-

BE0R0-01
I05915
Engine Room R/B

HAZ-HORN Fuse
Hazard Warning Switch
Turn Signal and Hazard Warning Lights
Turn Signal Flasher
Turn Signal Switch
Ignition Switch
Turn Signal and Hazard Warning Lights I/P J/B

TURN Fuse
- BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
BE-21
1043 Author
: Date
:
1996 TERCEL (RM440U)
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION