Water Temperature Gauge - Mazda MX-5 1990 Workshop Manual

T
Standard indication
(km/h)
40
80
120
Standard indication
(mph)
30
50
80
Standard Indication
(rpm)
2.000
3,000
4.000
5,000
INSTRUMENT CLUSTER
Allowable range
(km/h)
40- 43
80- 84
120-126
Allowable range
(mph)
30-32
50-53
80-84
05UOTX-060
Allowable range
(rpm)
1.850-2.150
2,760-3,280
3.700-4.300
4,640-5.360
05UOTX-061
SPEEDOMETER
Inspection
1. Using a speedometer tester, check the speedometer for al-
lowable indication error, and check the operation of the
odometer. Replace if necessary.
2. Check the speedometer for fluctuation and/or abnormal
noise.
Caution
• If significant fluctuation occurs or the speedome-
ter does not move at all, remove the speedometer
cable. If it is normal, replace the speedometer as-
sembly.
• Tire wear and improper inflation will increase
speedometer error.
TACHOMETER
Inspection
1. Connect a test tachometer to the engine, and start the
engine.
2. Check the tachometer for allowable indication error. Replace
if necessary.
Caution
WATER TEMPERATURE GAUGE
Inspection
• When removing or installing the tachometer, do not
drop it or subject it to sharp shocks.
Preparation
SST
49 0839 285
Checker, fuel and
thermometer
= 0
t:=)c::;)c::::JO
::;2;g~-_
g§§
(1830)
1830
(18fl)
200
) ... CANADA MODEL
T-34
For inspection of
gauges
05UOTX-063
9MUOTX-OS9
05UOTX-062
1. Remove the instrument cluster. (Refer to page T -33.)
2. Apply 12V to terminal 2k and ground terminal 2j.
3. Connect the red lead of the SST to terminal 21 and the black
lead to a ground.
4. Set the SST to the resistance values shown in the figure.
5. Turn the ignition switch ON, and verify that the needle indi-
cates the correct values.
Caution
• Continue the above checks for at least two minutes
each to correctly judge the condition.
• The allowable indication error is twice the width of
the needle.