7-3. HEATER SERVICES
Blower resistor
This resistor is on heater case. Check it for signs
of cracking or breakage and replace as necessary.
If blower motor will not run or when resistor is
replaced, check continuity between Blue/White
and Blue/Black terminals using
a
circuit tester.
I
Blower resistor
specification
Several ohms
Heater hoses
Check heater hoses for the connection con-
dition, breakage, cracks and other damage and
replace if necessary.
Fig. 7-4
Fig. 7-3
Blower switch
Using a circuit tester, check this switch for
circuit continuity:
III
II
I
OFF
Black
Blue/red Blue/Yellow
Blue
7-4
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