Chrysler Conquest 1988 Service Manual page 334

19.
Defogger Switch Input Circuit
ECU
Sub fusible
link 2
B-a
B
Q
(Glove compartment harness side) (ECU connector terminals)
Step
Check method Judqement
Condition
B-a connec-
tor:
separation
Defogger
switch:
ON ++ OFF
ECU connec-
tor:
separation
Defogger
switch:
ON -OFF-
and ground
(30-Ground)
connected wir-
ing of B-a con-
nector B line or
LR line between
ECU-and B-a
Remains
OR.
Short-circuit of
LR line between
ECUand B-a
ECU: Electronic Control Unit