Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Wireless door lock control system / Terminals of ecu
Toyota Corolla (E120): Terminals of ecu
1. Inspect integration relay

- Disconnect the connector from the integration relay.
- check the continuity between each terminal of the disconnected connector and the body ground, as shown in the illustration and table.
Standard:

If the result is not as specified, the vehicle’s side may malfunction.
- reconnect the connector and check the voltage between each terminal and the body ground, as shown in the illustration and table.
Standard:

If the result is not as specified, the integration relay may malfunction.
2. Inspect instrumental panel j/b (integration relay)

- Disconnect the connectors ia, ib, id, if, ih and ij of the instrument panel j/b.
- check the continuity between each terminal of the disconnected connectors and the body ground, as shown in the illustration and table.
Standard:

If the result is not as specified, the vehicle’s side may malfunction.
- reconnect the connectors and check the voltage between each terminal and the body ground, as shown in the illustration and table.
Standard:

If the result is not as specified, the integration relay or instrument panel j/b assembly may malfunction.
Problem symptoms table

Other materials:
On–vehicle inspection
1. Inspection throttle body idle speed control valve assy
Notice:
it is impossible to check the resister value and the operation
of isc valve by itself, because the isc valve
has an ic circuit inside it, which transforms the duty
signal from the ecm to the derive signal.
After check ...
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 ...
Optimal use of the multimedia system
On the “Sound Settings” screen, sound quality (Treble/Mid/ Bass), volume balance
can be adjusted.
How to adjust the sound settings and sound quality
1 2 3 Select “-” or “+” to adjust the treble, mid or bass to a level between
-5 and 5.
4 5 Select “Front” or “Rear” to adjus ...


