Ford Corsar Repair Manual page 803

TROUBLE DIAGNOSES
- -
Trou ble-shooting (Cont'd)
I
Thermo control amp.
(
Thermo control amp. check
connector
a m
Voltmeter
I
Thermo control amp.
connector
Ohmmeter
I
Continuity exists: O.K.
-
l
Check power supply circuit for thermo control amp. with ignition
switch ON.
1. Disconnect thermo control amp. harness connector.
2. Connect voltmeter from harness side.
3. Measure voltage across terminal No.
@
and body
ground.
Voltmeter terminal
Voltage
Body ground
Approx.
12V
I Check body ground circuit for therm0 control amp. with ignition
switch OFF, AIC switch ON and fan switch ON.
1. Disconnect thermo control amp. harness connector.
2. Connect ohmmeter from harness side.
3
Check for continuity between terminal N o @and body
ground.
Ohmmeter terminal
Continuity
Body
ground
Yes