You are correct about one light triggering the rest.

If its an evap code, then the dealer will hook the scantool up to it, and check each evap sensor to find the faulty one. Probably an hour or 2 of labor plus the price of the sensor.


88 4R, 350 V8, R150 5 speed Sold <...uot; />
97 4R, stock, daily driver
98 Sienna, kid and dog hauler, wife's ride