Water Temperature Gauge Does Not Operate - Ford TRADER Workshop Manual

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WITH TACHOMETER
1530
190
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TEMP
.\l1TH TACHOMETER
1530
190
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T-66
INSTRUMENT CLUSTER (METER)
Water temperature gauge does not operate
WITHOUT
TACHOMETER
J,.
TEMP
1530
190
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WITHOUT
TACHOMETER
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TEMP
153n
190
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Step 1
1. Disconnect the connector from the water thermosensor.
2. Connect the red lead of the SST to the connector, and the
black lead to a body ground.
3. Set the SST to the resistance values shown in the figure.
4. Turn the engine switch ON, and check that the needle in-
dicates the
COrrect values.
Gauge displays correct Action
Yes Replace water thermosensor
No Go to Step 2
caution
• Continue the above checks for at the least two
minutes each to correctly judge the condition.
• The allowable indication error is twice the width of
the needle.
Step 2
1 . Remove the instrument cluster.
2. Apply 12V to terminal 1 G and ground terminal 1 H.
3. Connect the red lead of the SST to terminal 1 K and the black
lead to a negative battery terminal.
4. Set the SST to the resistance values shown in the figure.
5. Verify that the needle indicates the correct values.
Indicates correct Action
Yes
Repair wire harness
(Instrument cluster-Water thermosensor)
No Replace water temperature gauge
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.