Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Tvip ecu communication circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check tvip ecu
- Check that the operation of the tvip function is normal.
Hint
: with this inspection, the tvip ecu cpu can be diagnosed if it works normally or not.


2 Check wire harness (tvip ecu integration relay)

- Disconnect the tvip ecu and integration relay connectors.
- check the continuity between the terminal of the tvip ecu connector and integration relay connectors, as shown in the illustration and table.
Standard:



Check and replace tvip ecu
Other materials:
Dialing by selecting a name
1 Select “Phonebook” using .
2 Select the desired name using
and press the off-hook switch.
By pressing (Add S. Dial) and then
one of the speed dial buttons (from
to ) while the desired name is selected,
it can be registered as a speed dial. ...
On–vehicle inspection
1. Inspect refrigerant pressure with manifold gauge set
this is a method in witch the trouble is located by using
a manifold gauge set. Read the manifold gauge pressure
when the these conditions are established.
Test conditions:
temperature at the air inlet with the switch set
...
Problem symptoms table
The suspected circuits or parts for each problem symptom are shown in the
table below. Use this table to
troubleshoot the problem when a normal code is displayed in the diagnostic
trouble code chart but the problem
is still occurring. Numbers in the table indicate the order in which the
circ ...


