Chrysler New Yorker. Manual — part 671

TEST NTC-26A

CHECKING THE A/C SYSTEM

Perform TEST NTC-1A Before Proceeding

FIG. 1

FIG. 2

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

520

TEST NTC-26A

CHECKING THE A/C SYSTEM

Perform TEST NTC-1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE: THE TRANS

START TEST

TEMPERATURE MAY TURN

IS THERE AN A/C

YES

PERFORM TEST

NTC-26A.

ON THE COOLING FANS

CLUTCH RELAY FAULT

TC-16A.

REGARDLESS OF ENGINE

CODE?

TEMPERATURE.

NO

VERIFY THAT THE

PROPERLY CHARGE

REFRIGERANT SYSTEM IS

THE REFRIGERANT

NO

THE REFRIGERANT

IS PROPERLY CHARGED,

SYSTEM PROPERLY

SYSTEM PER THE

PER SERVICE MANUAL CHARGED?

SERVICE MANUAL

SECTION 24.

SECTION 24.

YES

WITH THE DRB,

DID THE A/C CLUTCH

YES

THE A/C CLUTCH

ACTUATE THE A/C

ACTUATE?

CHECKS OK AT

CLUTCH RELAY.

THIS TIME.

NO

DISCONNECT THE A/C

CLUTCH RELAY OUTPUT

CLUTCH CONNECTOR.

AT THE A/C CLUTCH.

DOES THE VOLTAGE

YES

CONTINUE TEST

WITH A VOLTMETER,

NOTE: ACTUATION

SWITCH FROM 0 TO

NTC-26A ON THE

MEASURE THE A/C...

SHOULD STILL BE

12 VOLTS?

NEXT PAGE.

FIG. 1

RUNNING.

NO

REMOVE THE A/C

CLUTCH RELAY. WITH A

IS THE VOLTAGE

NO

REPAIR THE OPEN

VOLTMETER, MEASURE

ABOVE 11.0 VOLTS?

FUSED B(+)

THE FUSED B(+) AT

CIRCUIT.*

THE RELAY. FIG.

2

YES

WITH AN OHMMETER,

MEASURE THE A/C

TO THE A/C

IS THE RESISTANCE

NO

REPAIR THE OPEN

CLUTCH RELAY

CLUTCH COIL

BELOW 5.0 OHMS?

A/C CLUTCH RELAY

OUTPUT FROM THE

CONNECTOR.

OUTPUT CIRCUIT.*

RELAY...

YES

REPLACE THE A/C

CLUTCH RELAY.*

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

521

TEST NTC-26A

CONTINUED - CHECKING THE A/C SYSTEM

FIG. 1

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

522

TEST NTC-26A

CONTINUED - CHECKING THE A/C SYSTEM

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST NTC-26A

WITH AN OHMMETER,

CONTINUED FROM MEASURE THE GROUND

IS

THE RESISTANCE

YES

REPLACE THE A/C

THE PREVIOUS

CIRCUIT TO GROUND.

BELOW 5.0 OHMS?

CLUTCH COIL.*

PAGE.

FIG. 1

NO

REPAIR THE OPEN
GROUND CIRCUIT.*

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

523