electrical TOYOTA TERCEL 1996 Service Manual Online

BE0RF-02
Z18219
Power Window Motors Power Window Master Switch
Ignition Switch
Power Window Switch
R/B No.7

POWER Fuse

POWER Main Relay
I/P J/B

GAUGE FusePower Window Switch
Power Window MotorsPower Window Switch BE-48
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
1070 Author
: Date
:
1996 TERCEL (RM440U)
POWER WINDOW CONTROL SYSTEM
LOCATION

BE0RG-04
Z06846
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE-49
1996 TERCEL (RM440U)
INSPECTION
1. INSPECT POWER WINDOW MASTER SWITCH
CONTINUITY
Front Driver's Switch (Window unlock and lock):
Switch positionTester connectionSpecified condition
UP6 - 7 - 8
1 - 2 - 13Continuity
OFF1 - 2 - 6 - 13Continuity
DOWN1 - 2 - 6
7 - 8 - 13Continuity
Front Passenger's Switch:
Switch positionTester connectionSpecified condition
UP7 - 8 - 12Continuity
UP and window lock1 - 2 - 5
7 - 8 - 12Continuity
OFF5 - 12Continuity
OFF and window lock1 - 2 - 5 - 12Continuity
DOWN5 - 7 - 8Continuity
DOWN
and window lock1 - 2 - 12
5 - 7 - 8Continuity
Rear Left Switch:
Switch positionTester connectionSpecified condition
UP7 - 8 - 10Continuity
UP and window lock7 - 8 - 10Continuity
OFF9 - 10Continuity
OFF and window lock1 - 2 - 9Continuity
DOWN7 - 8 - 9Continuity
DOWN
and window lock1 - 2 - 9 - 10Continuity
Rear Right Switch:
Switch positionTester connectionSpecified condition
UP7 - 8 - 11Continuity
UP and window lock1 - 2 - 14
7 - 8 - 11Continuity
OFF11 - 14Continuity
OFF and window lock1 - 2 - 11 - 14Continuity
DOWN7 - 8 - 14Continuity
DOWN
and window lock1 - 2 - 11
7 - 8 - 14Continuity
If continuity is not as specified, replace the master switch.

Z06301
Z06302
Z06303
Z06304
Z08477
UP
DOWN BE-50
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
1996 TERCEL (RM440U)
2. Using an ammeter:
INSPECT ONE TOUCH POWER WINDOW SYSTEM
(a) Disconnect the connector from the master switch.
(b) Connect the positive (+) lead from the ammeter to termi-
nal 6 on the wire harness side connector and the negative
(-) lead to negative terminal of the battery.
(c) Connect the positive (+) lead from the battery to terminal
13 on the wire harness side connector.
(d) As the window goes down, check that the current flow is
approximately 7 A.
(e) Check that the current increases up to approximately
14.5 A or more when the window stops going down.
HINT:
The circuit breaker opens some 4 - 40 seconds after the win-
dow stops going down, so that check must be made before the
circuit breaker operates.
If the operation is as specified, replace the master switch.
3. Using an ammeter with a current-measuring probe:
INSPECT ONE TOUCH POWER WINDOW SYSTEM
(a) Remove the master switch with connector connected.
(b) Attach a current-measuring probe to terminal 6 of the
wire harness.
(c) Turn the ignition switch ON and set the power window
switch in the down position.
(d) As the window goes down, check that the current flow is
approximately 7 A.
(e) Check that the current increases up to approximately
14.5 A or more when the window stops going down.
HINT:
The circuit breaker opens some 4 - 40 seconds after the win-
dow stops going down, so that check must be made before the
circuit breaker operates.
If operation is as specified, replace the master switch.
4. INSPECT POWER WINDOW SWITCH CONTINUITY
Passenger 's Door:
Switch positionTester connectionSpecified condition
UP1 - 5, 3 - 4Continuity
OFF1 - 2, 3 - 4Continuity
DOWN1 - 2, 4 - 5Continuity

Z14869
UP
DOWN
N12812
(a)
(b)
N12813
(a)
(b)
Z06307
Z06308
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE-51
1996 TERCEL (RM440U)
Rear Door:
Switch positionTester connectionSpecified condition
UP1 - 2, 3 - 4Continuity
OFF1 - 2, 4 - 5Continuity
DOWN2 - 3, 4 - 5Continuity
If continuity is not as specified, replace the switch.
5. Driver 's Door and Rear RH Side:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 2, and check that
the motor turns clockwise.
(b) Reverse the polarity, and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the motor.
6. Passenger 's Door and Rear LH Side:
INSPECT POWER WINDOW MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 2, and check that
the motor turns clockwise.
(b) Reverse the polarity, and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the motor.
7. Driver 's Door:
INSPECT CIRCUIT BREAKER OPERATION
(a) Disconnect the connector from the power window switch.
(b) Connect the positive (+) lead from the battery to terminal
6 and the negative (-) lead to terminal 13 on the wire har-
ness side connector, and raise the window to full closed
position.
(c) Continue to apply voltage, check that there is a circuit
breaker operation noise within approximately 4 to 40 se-
conds.
(d) Reverse the polarity, check that the window begins to de-
scend within approximately 60 seconds.
If operation is not as specified, replace the motor.

Z06309
Z06310
N12814
N12815
Z05930
1
2 3
51 2
3
5 BE-52
- BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
1996 TERCEL (RM440U)
8. Passenger 's Door:
INSPECT CIRCUIT BREAKER OPERATION
(a) Disconnect the connector from the power window switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and the negative (-) lead to terminal 4 on the wire har-
ness side connector, and raise the window to full closed
position.
(c) Continue to apply voltage, and check that there is a circuit
breaker operation noise within approximately 4 to 40 se-
conds.
(d) Reverse the polarity, and check that the window begins
to descend within approximately 60 seconds.
If operation is not as specified, replace the motor.
9. Rear Door:
INSPECT CIRCUIT BREAKER OPERATION
(a) Disconnect the connector from the power window switch.
(b) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 4 on the wire har-
ness side connector, and raise the window to full closed
position.
(c) Continue to apply voltage, check that there is a circuit
breaker operation noise within approximately 4 to 40 se-
conds.
(d) Reverse the polarity, check that the window begins to de-
scend within approximately 60 seconds.
If operation is not as specified, replace the motor.
10. INSPECT POWER MAIN RELAY CONTINUITY
ConditionTester connectionSpecified condition
Constant1 - 2Continuity
Apply B+ between
terminals 1 and 2.3 - 5Continuity
If continuity is not as specified, replace the relay.

The radio wave bands used in radio broadcasting are as follows:
Frequency
Designation
Radio wave
Modulation method
LF: Low frequency MF: Medium Frequency HF: High Frequency VHF: Very High FrequencyAmplitude modulationFrequency modulation 30 kHz
300 kHz3 MHz 30 MHz 300 MHz
LF
MFHFVHF
AM FM
BE1OT-01
BE2818
FM (Stereo)
FM (Monaural)
AM
BE2819
Fading
Ionosphere
- BODY ELECTRICALAUDIO SYSTEM
BE-53
1075 Author
: Date
:
1996 TERCEL (RM440U)
AUDIO SYSTEM
DESCRIPTION
1. RADIO WAVE BAND
2. SERVICE AREA
There are great differences in the size of the service area for AM
and FM monaural. Sometimes FM stereo broadcasts cannot be
received even through AM comes in very clearly.
Not only does FM stereo have the smallest service area, but it
also picks up static and other types of interference (ºnoiseº)
easily.
3. RECEPTION PROBLEMS
Besides the problem of static, there are also the problems
called ºfadingº, ºmultipathº and ºfade outº. These problems are
caused not by electrical noise but by the nature of the radio
waves themselves.

Fading
Besides electrical interference, AM broadcasts are
also susceptible to other types of interference, es-
pecially at night. This is because AM radio waves
bounce off the ionosphere at night. These radio
waves then interfere with the signals from the same
transmitter that reach the vehicle's antenna directly.
This type of interference is called ºfadingº.

BE2820
Multipath
BE2821
Fade Out
N17398
Example :
HeadCapstan
Pinch Roller BE-54
- BODY ELECTRICALAUDIO SYSTEM
1076 Author
: Date
:
1996 TERCEL (RM440U)

Multipath
One type of interference caused by bouncing of ra-
dio waves off obstructions is called ºmultipathº. Mul-
tipath occurs when a signal from the broadcast
transmitter antenna bounces off buildings and
mountains and interferes with the signal that is re-
ceived directly.

Fade Out
Because FM radio waves are of higher frequencies
than AM radio waves, they bounce off buildings,
mountains, and other obstructions. For this reason,
FM signals often seem to gradually disappear or
fade away as the vehicle goes behind a building or
other obstructions. This is called ºfade outº.
4. Tape Player/Head Cleaning:
MAINTENANCE
(a) Raise the cassette door with your finger.
Next, using a pencil or similar object, push in the guide.
(b) Using a cleaning pen or cotton applicator soaked in clean-
er, clean the head surface, pinch rollers and capstans.

BE26T-01
- BODY ELECTRICALAUDIO SYSTEM
BE-55
1996 TERCEL (RM440U)
TROUBLESHOOTING
NOTICE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part
of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the re-
placement part (spare part).
HINT:
This inspection procedure is a simple troubleshooting which should be carried out on the vehicle during sys-
tem operation and is prepared on the assumption of system component troubles (except for the wires and
connectors, etc.).
Always inspect the trouble taking the following items into consideration.

Open or short circuit of the wire harness

Connector or terminal connection fault
ProblemNo.
RadioNo power coming in.1
Power coming in, but radio not operating.2
Noise present, but AM - FM not operating.3
Either speaker does not work.4
Either AM or FM does not work.5
Reception poor (Volume faint).5
Few preset tuning bands.5
Sound quality poor.6
Cannot set station select button.7
Preset memory disappears.7
Tape PlayerCassette tape cannot be inserted.8
Cassette tape inserts, but no power.9
Power coming in, but tape player not operating.10
Either speaker does not work.11
Sound quality poor (Volume faint).12
Tape jammed, malfunction with tape speed or auto-reverse.13
APS, SKIP, RPT buttons not operating.14
Cassette tape will not eject.15
AntennaAntenna dose not fully extend or fully retract.16
Antenna - related.17
NoiseNoise produced by vibration or shock while driving.18
Noise produced when engine starts.19
The term ºAMº includes LW, MW and the term ºFMº includes UKW.

V08170
HOW TO USE DIAGNOSTIC CHART
Reference:
NO POWER COMING IN 1 Radio
R
SUR
SU
SU
R
SUR
U
: Radio : Tape Player (Separate) : Radio - Tape Player Unit
Tape player faulty.
Check if GND (wire harness side)
to radio is OK. Is tape player operating normally?
Is ACC applied to radio?Ye s
No
OKNG No
Ye s
NG
OK
Ye s Check if CIG & RAD fuse is OK.
Replace fuse.
Audio system type and symbol used.
HINT : Confirm the applicable type of audio system.Radio faulty.
Radio assembly faulty.
ACC wire harness faulty. R Is ACC applied to radio?
S Is ACC applied to tape player?
P Is ACC applied power amplifier?No
Symbol for type of audio system the question applies to.
HINT : If the audio system type is not applicable, proceed to next question below.
Junction without black circle.
HINT : Proceed to next question below.
Junction with black circle.
HINT : Proceed to question for applicable audio system type.
HINT : Select question for applicable audio system type.
2
3
4
51RS BE-56
- BODY ELECTRICALAUDIO SYSTEM
1996 TERCEL (RM440U)

V08171
NO POWER COMING IN 1 Radio
R
UR
U: Radio : Radio - Tape Player Unit
R
UU
Ye s
No
OKNG
No
Ye s
OKNG
U Check if GND (wire harness side) to radio assembly is OK.Is tape player operating normally? Radio assembly faulty.
Check if CIG & RAD fuse is OK.Replace fuse.
R Radio faulty.
U Radio assembly faulty. R Is ACC applied to radio?
C Is ACC applied to radio assembly?AC wire harness faulty.
R Check if GND (wire harness side) to radio is OK.
GND faulty.
- BODY ELECTRICALAUDIO SYSTEM
BE-57
1996 TERCEL (RM440U)