Page 1002 of 1202

BE0QP-02
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-1
1023 Author: Date:
1996 TERCEL (RM440U)
BODY ELECTRICAL SYSTEM
PRECAUTION
Take care to observe the following 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 TERCEL 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 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 1055 of 1202

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.
Page 1056 of 1202

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.
Page 1057 of 1202

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)
Page 1058 of 1202
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)
Page 1060 of 1202
V08173
U: Radio - Tape Player Unit
R : Radio
U
U RYe s
Ye s
Ye s
Ye s No
No
NoNo EITHER SPEAKER DOES NOT WORK 4 Radio
R Radio faulty.
U Radio assembly faulty.
R Radio faulty.
U Radio assembly faulty.U Radio assembly faulty. Is tape player operating normally?
Is hiss produced by non-functioning speaker?
Is there continuity in speaker wire harness?
Temporarily install another speaker.
Functions OK?Speaker wire harness faulty.
Speaker faulty.
- BODY ELECTRICALAUDIO SYSTEM
BE-59
1996 TERCEL (RM440U)
Page 1061 of 1202
V08174
U: Radio - Tape Player Unit
R: RadioEITHER AM OR FM DOES NOT WORK, RECEPTION
POOR (VOLUME FAINT ), FEW PRESET TUNING BANDS 5 Radio
Problem with radio wave signals or
locating? (See page BE-53).Poor signals, poor location.
Are both AM and FM defective?
Adjust antenna trimmer. Electronic Tuning
Radio?
Which band is poor?
Radio faulty.
Speaker faulty.R Radio faulty.
U Radio assembly faulty.
If radio side faulty. Go to No.23
Is tape player operating normally?Ye s
No
No Yes
Ye sFM
AM
R
U
Ye s
NoU Radio assembly faulty.
R Radio faulty.
U Radio assembly faulty.NoYe s
R
U Temporarily install another speaker.
Functions OK?No BE-60
- BODY ELECTRICALAUDIO SYSTEM
1996 TERCEL (RM440U)
Page 1063 of 1202
V08176
U : Radio - Tape Player Unit R : RadioCANNOT SET STATION SELECT BUTTON, PRESET MEMORY DISAPPEARS 7 Radio
Radio faulty. Electronic Tuning Radio Type?
Can cassette tape be inserted in tape player?
Check if CIG & RAD fuse is OK.
Is +B applied to radio or radio assembly?
Check if GND (wire harness side) to radio or
radio assembly is OK.Radio assembly faulty.
Replace fuse.
R U +B wire harness faulty.
R U GND faulty.
R Radio faulty.
U Radio assembly faulty. R
U R
UR
U Ye s
OKNo
NG NoYe s
No
NG Ye s
OK BE-62
- BODY ELECTRICALAUDIO SYSTEM
1996 TERCEL (RM440U)