
Coolant Temperature Gauge
-Gauge Test
NOTE:
l
Refer to page 23-l 24 for wiring description of the
coolant temperature gauge circuit.
Check the No. 5 (IO A) fuse in the dash fuse box
before testing.
1 .
Make sure the ignition switch is OFF, then discon-
nect the
wire from the coolant tempera-
ture gauge sender and ground it with a jumper wire.
SENDING UNIT
2.
Turn the ignition switch ON.
Check that the pointer of the coolant temperature
gauge starts moving toward “H” mark.
CAUTION:
Turn the ignition switch OFF before the
pointer reaches “H” mark on the gauge dial. Failure
to turn the ignition OFF quickly enough may cause
damage to the gauge.
If the pointer of the gauge does not swing at all,
check for:
An open in the YEL or
wire.
Repalce the coolant temperature gauge if the
fuse and wiring are normal.
l
Inspect the gauge sender if the gauge is OK.
Sending Unit Test
1.
2.
3.
4.
Disconnect the
wire from the sender.
With the engine cold, use an ohmmeter to measure
resistance between the positive terminal and the en-
gine (ground).
TEMPERATURE
SENDING UNIT
Check the temperature of the coolant.
Run the engine and measure the change in resistance
with the enigne at operating temperature (Cooling
fan comes on).
Temperature
mark1
100°C
Resistance
1 4 2
4 9 - 3 2
5 .
If obtained readings are substantially different from
specifications above, replace the gauge sender.
Содержание Acura NSX 1991
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Страница 22: ...Special Tools Individual tool lists are located at the front of each section ...
Страница 23: ...Specifications Standards and Service Limits 3 2 Design Specifications 3 l 1 ...
Страница 39: ...Body Specifications m I 1 175 46 3 Unit mm in ...
Страница 40: ...Maintenance Lubrication Points 4 2 Maintenance Schedule 4 4 ...
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Страница 193: ... PGM FI 1 IDLE CONTROL 1 FUEL SUPPLY 1 EMISSION CONTROL II 17 ...
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