3.2TL TYPE S V6-3.2L SOHC (2002)
Temperature Sensor (Gauge): Testing and Inspection
Coolant Temperature Gauge Test
'99 model:
1. Check the No. 9 (7.5 A) fuse in the under-dash fuse/ relay box before testing.
2. Make sure the ignition switch is OFF, then disconnect the YEL/GRN wi7re (A) from the coolant temperature gauge sending unit (B), and ground it
with a jumper wire.
3. Turn the ignition switch ON (II). Check that the pointer of the coolant temperature gauge starts moving toward the "H" mark. Turn the ignition
switch OFF before the pointer reaches "H" on the gauge dial. Failure to do so may damage the gauge.
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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 coolant temperature
gauge.
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If the coolant temperature gauge works, test the coolant temperature gauge sending unit.
'00-03 models:
Coolant Temperature Gauge Needle Does Not Move at All:
1. Turn the ignition switch OFF, and connect powertrain control module (PCM) connector terminal A31 to body ground with a jumper wire.
2. Turn the ignition switch ON (II).
After 30 seconds or more, does the temperature gauge needle move to the Hot side?
YES-Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM.
NO-Go to step 3.
3. Turn the ignition switch OFF, and disconnect PCM connector A (32P).
