Tundra 2WD V6-3.4L (5VZ-FE) (2004)
2. INSPECT MIRROR HEATER RELAY (Marking : MIR HTR) CONTINUITY
If the continuity is not as specified, replace the relay.
3. INSPECT MIRROR HEATER OPERATION
(a) Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 6.
(b) Check that the mirror becomes warm.
HINT: It will take a short time for the mirror to become warm.
If operation is not as specified, replace the mirror.