Toyota Camry Manual page 389

BE–70
BODY ELECTRICAL SYSTEM
(b) Submerge the switch in fuel, check that the bulb goes
out.
If operation is not as specified, replace the sender
gauge.
ENGINE COOLANT TEMPERATURE
RECEIVER GAUGE AND SENDER GAUGE
INSPECTION
Operation
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON, check that the receiver
gauge needle indicates COOL.
(c) Ground terminal on the wire harness side connector
through a 3.4W test bulb.
(d) Turn the ignition switch ON, check that the bulb lights
up and the receiver gauge needle moves toward the
hot side.
If operation is as specified, replace the sender gauge.
Then recheck the system.
If operation is not as specified, measure the receiver
gauge resistance.
Resistance
Measure the resistance between terminals.
HINT: Connect the test leads so that the current from
the ohmmeter can flow according to the chart order.
Between terminals
If resistance value is not as specified, replace the
engine coolant temperature receiver gauge.
– COMBINATION METER
A–B
A–C
B–C
Resistance (Ω)
Approx. 54
Approx. 176
Approx. 230