TL V6-3206cc 3.2L SOHC MFI (1998)
Temperature Gauge: Testing and Inspection
1. Check the No. 1(10 A) fuse in the under-dash fuse/ relay box before testing.
2. Remove the engine cover.
Gauge Test
3. Make sure the ignition switch is OFF, then disconnect the YEL/GRN wire from the ECT sending unit, and ground it with a jumper wire.
4. Turn the ignition switch ON (II). Check that the pointer of the ECT gauge starts moving toward the "H" mark.
CAUTION: Turn the ignition switch OFF before the pointer reaches "H" on the gauge dial. Failure to do so may damage the gauge.
^ If the pointer of the gauge does not move at all, check for an open in the YEL/GRN wire.
If the wires are OK, replace the ECT gauge.
^ If the ECT gauge works, test the ECT sending unit.