audio TOYOTA CAMRY 1999 Service User Guide

V08239

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Does tape player operate normally?
Check that RAD No.1 fuse is OK?
Is ACC applied to power amplifier.
Check that RAD No.2 fuse is OK?
Is +B applied to power amplifier.
Check that GND (wire harness side) to power amplifier is OK?
Is ACC applied to radio assembly?
Is +B applied to radio assembly?
Check that GND (wire harness side) to radio assembly is OK?
Does continuity exist in speaker wire harness?
Temporarily install another speaker. Functions OK?
Hiss noise from speaker?
Radio assembly faulty. Recheck system after repair.Replace fuse.
ACC wire harness faulty.
Replace fuse.
+B wire harness faulty.
GND faulty.
Power amplifier faulty.
Power amplifier faulty.
GND faulty.
Speaker wire harness faulty.
Speaker faulty.
Power amplifier faulty.
Recheck system after repair. No
OK
Ye sNG
No
No No No No No No
OK
OK
OK Ye s
Ye s
Ye s
Ye s
Ye sYe s NG
NG
NG
Radio±CD Player Unit (Separate Power Amplifier)
± BODY ELECTRICALAUDIO SYSTEM
BE±95
2315 Author: Date:

I03351
3
Radio NOISE PRESENT, BUT AM±FM NOT OPERATING
ANY SPEAKER DOSE NOT WORK Radio 4
Does tape player operate normally?Radio assembly faulty.
Separate amplifier? Hiss noise from speaker? Power amplifier faulty.
Radio assembly faulty.

Radio±Tape Player Unit (Built±in Power Amplifier)
Is hiss noise produced by non±functioning speaker?
Temporarily install another speaker. Functions OK?
Radio assembly faulty.Radio assembly faulty.
Radio assembly faulty.
Speaker wire harness faulty.
Speaker faulty. NoYe s
Ye s
Ye s
Ye sYe s
Ye s
Ye s NoNo
No
No
NoNo Does tape or CD player operate normally?
Does continuity exist in speaker wire harness?
Radio±CD Player Unit (Built±in Power Amplifier)

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Does tape player operate normally?
Is hiss noise produced by non±functioning speaker?
Does continuity exist in speaker wire harness?
Temporarily install another speaker. Functions OK?
Power amplifier faulty. Recheck system after repair.Radio assembly faulty.
Radio assembly
Recheck system after repair.
Speaker wire harness faulty.
Speaker faulty. NoYe s
No
NoNo Ye s
Ye s
Ye s
Radio±CD Player Unit (Separate Power Amplifier) BE±96
± BODY ELECTRICALAUDIO SYSTEM
2316 Author: Date:

I03352
5
RadioEITHER AM OR FM DOES NOT WORK, RECEPTION
POOR (VOLUME FAINT), FEWER STATION PRESETS
V08242

Radio±Tape Player Unit (Built±in Power Amplifier)
Problem with radio wave signals or location?
Are both AM or FM defective?
Is power for the antenna being output from the radio assembly?
Go to No.15
Does tape player operate normally?
Temporarily install another speaker. Functions OK?
Radio assembly faulty.Poor signals, poor location.
Radio assembly faulty.
Radio assembly faulty.
Speaker faulty.

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Problem with radio wave signals or location?
Are both AM and FM defective?
Is power for the antenna being output from the radio assembly?
Go to No.15
Temporarily install another speaker. Functions OK?
Hiss noise from speaker?Poor signals, poor location.
Radio assembly faulty.
Radio assembly faulty.
Speaker faulty.
Power amplifier faulty.
Recheck system after repair.
Radio assembly faulty. Recheck system after repair.Ye s NoYe s Ye s Ye s Ye sYe s Ye s Ye s Ye s Ye sYe s
No
No No No No No NoNo No No
Does tape player operate normally?
Radio±CD Player Unit (Built±in Power Amplifier)

Radio±CD Player Unit (Separate Power Amplifier)
± BODY ELECTRICALAUDIO SYSTEM
BE±97
2317 Author: Date:

I01472
Is the condition bad in comparison with other vehicle?
6 Radio POOR RECEPTION
An electric wave environment.
Is there any additional installation parts? (Sun shade film,
telephone antenna etc.).Does the condition get better if removing them? Ye s
No
Ye s
No
Check if there is any scratch and breaking in a
wire on the glass antenna and the defogger pattern.
(See page
BE±115)Influence of additional installation parts. No
Repair Ye s
No
No
Is the contact of the plug jack of the radio OK?
Check for contact.
Ye s
No
Does the condition get better by using the outer
antenna? (Such as pillar antenna)Check the radio.
Ye s
No
Ye s
No Is the contact of the antenna terminal on the glass
surface and the defogger terminal?Measure for contact.
Is the continuity of the antenna cord OK? Exchange the antenna cord.
Check the grounding of the antenna, antenna cord,
choke coil and noise filter.Ye s
NG
Grounding failure.
OK
Does the condition get better by exchanging the choke
coil?Exchange the choke coil. Ye s
No
Ye s
Does the condition get better by exchanging the
antenna cord?Exchange the antenna cord.
Exchange the glass.NoYe s
BE±98
± BODY ELECTRICALAUDIO SYSTEM
2318 Author: Date:

I03353
7Radio
SOUND QUALITY POOR

Radio±Tape Player Unit (Built±in Power Amplifier)
Is sound quality always bad?Is sound quality bad in
certain area only.Poor signals,
poor location.
Radio assembly faulty.
Does tape player operate normally?Radio assembly
faulty.
Is speaker properly installed?
Temporarily install another speaker. Functions OK?Installed properly.
Speaker faulty.
Radio assembly faulty.No
No
No
No
No Ye sYe s
Ye s
Ye s Ye s
Radio±CD Player Unit (Built±in Power Amplifier)

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power amplifier)
Is sound quality always bad?Is sound quality bad only in
certain areas?Poor signals, poor
location.
Does tape player operate normally?
Radio assembly faulty. Radio assembly or power
amplifier faulty.
Radio assembly faulty.
Is speaker properly installed?
Temporarily install another speaker. Functions OK?
Radio assembly or power amplifier faulty.
Recheck system after repair.Installe properly.
Speaker faulty. No Yes
No
No
No
No
NoYe s
Ye s
Ye s
Ye s Ye s Does tape player operate normally?
Radio±Tape CD Unit (Separate Power Amplifier)
± BODY ELECTRICALAUDIO SYSTEM
BE±99
2319 Author: Date:

I03354
8
RadioPRESET MEMORY DISAPPEARS
Can cassette tape be inserted in tape player? Radio assembly faulty.
Replace fuse.
+B wire harness faulty.
GND faulty. Check that GND (wire harness side) to radio? Is +B applied to radio assembly?Check that RAD No.1 fuse is OK?
Radio assembly faulty.

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Can cassette tape be inserted in tape player?
Check that RAD No.1 fuse is OK?
Is +B applied to power amplifier?
Check that GND (wire harness side) to power amplifier?
Is +B applied to radio assembly?
Check that GND (wire harness side) to radio assembly?
Radio assembly faulty.Radio assembly faulty.
Replace fuse.
+B wire harness faulty.
GND faulty.
Power amplifier faulty.
Power amplifier faulty. Ye s
No
OKNG
Ye s
Ye s
Ye s
Ye sNo
No
No
No OK
OK
OK
OKNG
NG
NG
NG
Radio±Tape Player Unit (Built±in Power Amplifier)

Radio±CD Player Unit (Built±in Power Amplifier)

Radio±CD Player Unit (Separate Power Amplifier) BE±100
± BODY ELECTRICALAUDIO SYSTEM
2320 Author: Date:

V08246
9 Tape Player CASSETTE TAPE CANNOT BE INSERTED

Radio±Tape Player Unit (Built±in Power Amplifier)
Is there a foreign object inside tape player?
Remove foreign object.
Radio assembly faulty.
Replace fuse.
+B wire harness faulty.
GND faulty. Does auto search button of radio operate normally?
Check that RAD No.1 fuse is OK?
Is +B applied to radio assembly?
Check that GND (wire harness side) to radio assembly?
Radio assembly faulty.

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Is there a foreign object inside tape player? Remove foreign object.
Does auto search button radio operate normally? Radio assembly faulty.
Check that RAD No.1 fuse is OK?
Replace fuse.
Is +B applied to power amplifier?
Check that GND (wire harness side) to power amplifier is OK?
Is +B applied to radio assembly?
Check that GND (wire harness side) to radio assembly is OK?
Radio assembly faulty.+B wire harness faulty.
Power amplifier faulty.
Power amplifier faulty. Ye s
No
NG
OK No
No
No
No
No
No Ye s
Ye s
Ye s
Ye s
Ye s
Ye s OK
OK
OK
OKNG
NG
NG
NGGND faulty.
± BODY ELECTRICALAUDIO SYSTEM
BE±101
2321 Author: Date:

V08247
10 Tape Player CASSETTE TAPE IS INSERTED, BUT NO POWER

Radio±Tape Player Unit (Built±in Power Amplifier)
Does radio operate normally?
Check that RAD No.1 fuse is OK?
Is ACC applied to radio assembly?
Check that RAD No.1 fuse is OK?
Is +B applied to radio assembly?
Radio assembly faulty.Radio assembly faulty.
Replace fuse.
ACC wire harness faulty.
Replace fuse.
+B wire harness faulty.

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Does radio operate normal?
Check that RAD No.2 fuse is OK?
Is ACC applied to power amplifier?
Check that RAD No.1 fuse is OK?
Is +B applied to power amplifier?
Is ACC applied to radio assembly?Radio assembly faulty.
Replace fuse.
ACC wire harness faulty.
Replace fuse.
+B wire harness faulty.
Power amplifier faulty.
Radio assembly faulty.Ye s
NG
No OK
Ye s
Ye s
Ye s
Ye s
Ye s
Ye sNG
NG
NG No No
No
No
No
No OK
OK
OK BE±102
± BODY ELECTRICALAUDIO SYSTEM
2322 Author: Date:

V08248
11 Tape Player POWER COMING IN, BUT TAPE PLAYER NOT OPERATING

Radio±Tape Player Unit (Built±in Power Amplifier)
Functions OK if different cassette tape inserted?
Does continuity exist in speaker wire harness?
Temporarily install another speaker.
Functions OK?
Radio assembly faulty.Cassette tape faulty.
Radio assembly faulty.
Speaker wire harness faulty.
Speaker faulty.

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Function OK if different cassette tape inserted?
Does radio operate normally?
Temporarily install another speaker.
Function OK?
Hissing sound from speaker?
Radio assembly faulty.
Recheck system after repair.Cassette tape faulty.
Radio assembly faulty.
Speaker wire harness faulty.
Speaker faulty.
Power amplifier faulty.
Recheck system after repair. Ye s
No Ye s
Ye s
Ye s
Ye s
Ye sYe s
Ye s
Ye s No
No
No
No
No
NoNo
No Does continuity exist in speaker wire harness? Does radio operate normally?
± BODY ELECTRICALAUDIO SYSTEM
BE±103
2323 Author: Date:

V08249
12
Tape Player EITHER SPEAKER DOES NOT WORK

Radio±Tape Player Unit (Built±in Power Amplifier)
Does radio operate normally?
Is hiss noise produces by non±functioning speaker.
Does continuity exist in speaker wire harness?
Temporarily install another speaker.
Functions OK?
Radio assembly faulty.Radio assembly faulty.
Radio assembly faulty.
Speaker wire harness faulty.
Speaker faulty.

Radio±Tape Player Unit (Separate Power Amplifier)

Radio±Tape Player±CD Player Unit (Separate Power Amplifier)
Does radio operate normally?
Is hiss noise produced by non±functioning speaker.
Temporarily install another speaker.
Function OK?
Radio assembly or power amplifier faulty.Radio assembly faulty.
Radio assembly faulty.
Recheck system after repair.
Speaker wire harness faulty.
Speaker faulty. Ye s
No Ye s
Ye s Ye s
Ye sYe s
Ye s
Ye s No
No
No
No
No
NoNo
Does continuity exist in speaker wire harness? BE±104
± BODY ELECTRICALAUDIO SYSTEM
2324 Author: Date: