Tundra 2WD V6-3.4L (5VZ-FE) (2004)
7. Double cab: INSPECT A/C INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal A17 and negative (-) lead to A1O.
(b) Push the A/C button in and check that the A/C indicator lights up.
If operation is not as specified, replace the integration circuit.
8. Access cab, Standard cab: INSPECT AIR INLET CONTROL SWITCH CONTINUITY
If operation is not as specified, replace integration circuit bulb