Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Audio system / Radio broadcast cannot be received (bad reception)
Toyota Corolla (E120): Radio broadcast cannot be received (bad reception)
Inspection procedure
1 Check if radio auto–search functions properly
- Check if the radio auto–search functions properly.
- Perform the auto–search of the radio and check that it functions
normally.
Standard: the radio auto–search functions properly.
2 Check optional component
- Check optional component (sun shade film, telephone antenna etc.).
- Check whether or not any optional component is installed, such as
the sunshade film and the
telephone antenna, is installed.
Standard: optional component is installed.
3 Check antenna for noise production
- Noise check with antenna
- with the ignition switch in acc, turn on the radio and choose the am mode.
- Place a tip of a screwdriver or the antenna of the antenna
assembly w/ holder and check that
the noise heard from the speaker.
Standard: noise occurs.
4 Inspect radio receiver assy(antenna)
- Preparation for check
- remove the antenna plug of the radio receiver assembly.
- noise check
- with the radio receiver assembly connector connected, turn the ignition switch to acc.
- Turn on the radio and choose the am mode.
- Place a flat–head screwdriver or a metal such as a
thin wire on the antenna jack of the radio receiver
assembly and check that the noise heard from the
speaker.
Standard: noise occurs.
Replace amplifier antenna assy
Other materials:
Inspection procedure
1 Check p/t squib(rh) circuit(airbaga sensor assy center – front
seat outer belt assy rh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the seat belt pretensi ...
Manual air conditioning system∗
Air conditioning controls
► Heater
► Air conditioning system
■ Adjusting the temperature setting
► Heater
To adjust the temperature setting, turn the
dial clockwise to increase the temperature.
► Air conditioning system
To adjust the temperature setting, tu ...
Problem symptoms table
Proceed to the reference page shown in the table below for each malfunction
symptom and troubleshoot
each circuit.
Hint:
troubleshooting of the tvip system is based on the premise that the door lock
control system and wireless
door lock control system is operating normally. Accordingly, be ...