Chrysler New Yorker. Manual — part 455

TEST 8B

REPAIRING SHORTED BLOWER MOTOR CIRCUIT

Perform TEST 8A Before Proceeding

FIG. 1

M

A
N
U
A

L

T

E

M

P
E

R
A

T

U
R

E

C

O

N

T

R

O

L

S
Y
S

T

E

M

418

TEST 8B

REPAIRING SHORTED BLOWER MOTOR CIRCUIT

Perform TEST 8A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TURN IGNITION OFF.

START TEST 8B.

TURN BLOWER SWITCH

OFF.

NOTE: THE BLOWER

USING AN OHMMETER,

MOTOR AND RESISTOR

BACKPROBE AND

IS THE RESISTANCE

YES

CONTINUE TEST

ARE STILL

MEASURE BETWEEN GND

BELOW 5.0 OHMS?

8B ON THE NEXT

CONNECTED.

THE BLOWER MOTOR

PAGE.

DRIVER CKT. FIG. 1

NO

TURN IGNITION ON

(ENGINE OFF).

DOES THE BLOWER

NO

REPLACE THE BLOWER

REPLACE FUSE #23.

OPERATE WITHOUT

MOTOR.*

TURN BLOWER ON

BLOWING FUSE?

HIGH SPEED.

YES

REPAIR COMPLETE.*

M

A
N
U
A

L

T

E

M

P
E

R
A

T

U
R

E

C

O

N

T

R

O

L

S
Y
S

T

E

M

419

TEST 8B

CONTINUED - REPAIRING SHORTED BLOWER MOTOR CIRCUIT

FIG. 1

M

A
N
U
A

L

T

E

M

P
E

R
A

T

U
R

E

C

O

N

T

R

O

L

S
Y
S

T

E

M

420

TEST 8B

CONTINUED - REPAIRING SHORTED BLOWER MOTOR CIRCUIT

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST 8B

DISCONNECT THE

CONTINUED FROM BLOWER

MOTOR

THE PREVIOUS RESISTOR

HARNESS

PAGE.

CONNECTOR.**

FIG. 1

USING AN OHMMETER,

REPAIR THE FUSED

MEASURE BETWEEN

IS THE RESISTANCE

YES

IGNITION SWITCH

GROUND AND THE FUSED

BELOW 5.0 OHMS?

OUTPUT CIRCUIT FOR

IGNITION SWITCH

A SHORT TO

OUTPUT CKT. FIG. 1

GROUND.*

NO

REPLACE THE BLOWER

MOTOR AND FUSE

#23.*

M

A
N
U
A

L

T

E

M

P
E

R
A

T

U
R

E

C

O

N

T

R

O

L

S
Y
S

T

E

M

421