Toyota Camry Manual page 428

BODY ELECTRICAL SYSTEM
MIRROR MOTOR INSPECTION
INSPECT MIRROR MOTOR
Operation
(a) Connect the positive (+) lead from the battery to
terminal 3 and negative (–) lead to terminal 2, check
that the mirror turns upward.
(b) Reverse the polarity, check that the mirror turns to
downward.
(c) Connect the positive (+) lead from the battery to
terminal 1 and negative (–) lead to terminal 2, check
that the mirror turns to left side.
(d) Reverse the polarity, check that the mirror turns to
right side.
If operation is not as specified, replace the mirror.
– POWER MIRROR CONTROL SYSTEM
BE–109