Tacoma Extra Cab 4WD L4-2693cc 2.7L DOHC MFI (1997)
Instrument Panel Relay: Testing and Inspection
INSPECT BULB CHECK RELAY OPERATION
1. Connect the positive (+) lead from the battery to terminal C through a 1.4 W test bulb and the negative (-) lead to terminal B, check that the test
bulb does not light up.
2. Connect the positive (+) lead from the battery to terminal A and check that the test bulb lights up.
If operation is not as specified, replace the relay.