Page text (OCR transcript)
2. INSPECT RELAY OPERATION
(a) Apply battery voltage across terminals 1 and 3.
(b) Check that there is continuity between terminals 4 and 5.
(c) Check that there is no continuity between terminals 2 and 4.
If operation is not as specified, replace the relay.
Heater Blower Resistor
INSPECTION OF HEATER BLOWER RESISTOR
INSPECT RESISTOR CONTINUITY
Check that there is continuity between terminals 1 and 3.
If there is no continuity, replace the resistor.
Heater Control
ADJUSTMENT OF HEATER CONTROL
SET AIR INLET DAMPER
Set the air inlet damper and control lever to "FRESH".
SET MODE SELECTOR DAMPER
Set the mode selector damper and control lever to "VENT".
SET BALANCE DAMPER
Set the balance damper and control lever to the center position.
TEST CONTROL CABLE OPERATION
Move the control levers left and right and check for stiffness and binding through full range of the levers.
