Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Horn relay circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check low pitched horn assy
- Connect the positive (+) lead from the battery to the terminal and negative (–) lead to the horn body, and check that the horn blows.
2 Check relay (marking: horn)
- Remove the relay from the engine room j/b.
- check the horn relay continuity, as shown in the illustration and table.
Standard:
3 Check wire harness (tvip ecu engine room j/b)
- Remove the horn relay from the engine room j/b.
- check the continuity between the terminals of the tvip ecu and engine room j/b connectors, as shown in the illustration and table.
Standard:
*: Horn relay terminal
4 Check wire harness (engine room j/b horn)
- Check the continuity between the terminals of the engine room j/b and horn connectors, as shown in the illustration and table.
Standard:
*: Horn relay terminal.
Check and replace tvip ecu
Other materials:
Inspection procedure
1 Check d squib circuit(airbag sensor assy center – horn button
assy)
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 horn button assy.
release the airbag ...
Inspection procedure
Hint:
if different dtcs related to different systems that have terminal e2
as the ground terminal are output
simultaneously, terminal e2 may be open.
Read freeze frame data using the hand-held tester or the obd ii scan
tool. Freeze frame data records
the engine conditions when a malf ...
Calling the message sender
Calls can be made to an e-mail/SMS/MMS message sender's phone number.
1 Display the “Message Inbox” screen.
2 Select the desired message.
3 Select .
4 Check that the “Call” screen is displayed.
■ Calling from a number within a message
Calls can be made to a number identified ...