Observe The Following Precautions To Avoid Damage To The Parts - Toyota 22R-E Service Manual

INTRODUCTION – GENERAL REPAIR INSTRUCTIONS
11. Care must be taken when jacking up and supporting
the vehicle. Be sure to lift and support the vehicle at
the proper locations (See page IN–9).
(a) If the vehicle is to be jacked up only at the front
or rear end, be sure to block the wheels at the
opposite end in order to ensure safety.
(6) After the vehicle is jacked up, be sure to support
it on stands. It is extremely dangerous to do any
work on a vehicle raised on a jack alone, even for
a small job that can be finished quickly.
12. Observe the following precautions to avoid damage to
the parts:
(a) Do not open the cover or case of the ECU, ECM,
PCM or TCM unless absolutely necessary. (If the
IC terminals are touched, the IC may be destr–
oyed by static electricity.)
(b) To disconnect vacuum hoses, pull on the end, not
the middle of the hose.
(c) To pull apart electrical connectors, pull on the
connector itself, not the wires.
(d) Be careful not to drop electrical components,
such as sensors or relays. If they are dropped on
a hard floor, they should be replaced and not
reused.
(e) When steam cleaning an engine, protect the
distributor, air filter, and VCV from water.
(f) Never use an impact wrench to remove or install
temperature switches or temperature sensors.
(g) When checking continuity at the wire connector,
insert the tester probe carefully to prevent ter–
minals from bending.
(h) When using a vacuum gauge, never force the
hose onto a connector that is too large. Use a
step–down adapter instead. Once the hose has
been stretched, it may leak.
13. Tag hoses before disconnecting them:
(a) When disconnecting vacuum hoses, use tags to
identify how they should be reconnected.
(b) After completing a job, double check that the
vacuum hoses are properly connected. A label
under the hood shows the proper layout.
IN–7