On-vehicle inspection
Caution:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
Notice:
The circuit opening relay is built into the instrument panel junction block.

Standard resistance 
If the result is not as specified, replace the instrument panel junction block.
Ig2 relay
ECMLight bulbs
You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. If necessary
bulb replacement seems difficult to perform, contact your
toyota dealer.
For more information about replacing other light bulbs, contact
your toyota dealer.
Prepari ...
Oxygen (a/f) sensor pumping current circuit
Description
Refer to dtc p2195 (see page es-292).
Monitor description
The air-fuel ratio (a/f) sensor varies its output voltage in proportion to
the air-fuel ratio. If the a/f sensor
impedance (alternating current resistance) or output voltage deviates greatly
from the standard range ...
On-vehicle inspection
Inspect refrigerant pressure with
manifold gauge set
This method uses a manifold gauge set to locate
problem areas. Read the manifold gauge pressure
when these conditions are established. Test
conditions:
Temperature at the air inlet is 30 to 35°c (86 to
95°f).
Engine is ...