Chrysler New Yorker. Manual - part 609

TEST TC-82A

REPAIRING - SPEED CONTROL POWER RELAY OR 12V DRIVER CIRCUIT

Perform TEST DTC Before Proceeding

FIG. 1

FIG. 2

FIG. 3

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

272

TEST TC-82A

REPAIRING - SPEED CONTROL POWER RELAY OR 12V DRIVER CIRCUIT

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-4A.

**Check connectors - Clean / repair as necessary.

DISCONNECT THE SPEED

NOTE: ENSURE THE

START TEST CONTROL SERVO

USE A VOLTMETER IN 

BRAKE PEDAL IS 

NOT

TC-82A.

HARNESS CONNECTOR.** THE FOLLOWING

DEPRESSED DURING 

THE

STEPS. FOLLOWING STEPS. 

SEE GENERAL INFO 4.2

KEY ON, ENGINE MEASURE THE S/C

OFF. WITH THE DRB, 

BRAKE SWITCH 

IS THE VOLTAGE

YES

CONTINUE TEST 

ACTUATE THE S/C

OUTPUT CIRCUIT AT 

ABOVE 10.0 VOLTS? 

TC-82A ON THE

RELAY. 4-WAY CONNECTOR. 

NEXT 

PAGE.

FIG. 1

NO 

TURN IGNITION OFF. 

REPAIR THE

MEASURE RESISTANCE 

FROM SERVO CONNECTOR

IS THE RESISTANCE 

YES

SWITCHED S/C BRAKE

OF THE S/C BRAKE

TO GROUND.

BELOW 5.0 OHMS?

SWITCH OUTPUT 

SWITCH OUTPUT 

CIRCUIT SHORTED TO 

CIRCUIT... FIG. 

1

GROUND.* 

NO 

DISCONNECT THE BRAKE

MEASURE VOLTAGE OF 

SWITCH CONN. TURN 

THE S/C POWER

IS THE VOLTAGE

YES

PERFORM TEST 

KEY ON, ENGINE OFF. 

SUPPLY CIRCUIT AT 

ABOVE 10.0 VOLTS? 

TC-82B.

ACTUATE THE S/C

BRAKE SWITCH CONN.

SOLENOID.**

FIG. 2

NO 

KEY OFF, DISCONNECT 

MEASURE RESISTANCE 

THE POWERTRAIN 

OF S/C POWER SUPPLY 

IS THE RESISTANCE 

YES

REPLACE THE

CONTROL MODULE CIRCUIT, 

PCM TO BELOW 5.0 OHMS?

POWERTRAIN 

CONTROL

HARNESS CONNECTOR.** BRAKE SWITCH 

CONN.

MODULE.* 

SEE GENERAL INFO 4.1

FIG. 3

NO 

REPAIR THE OPEN 
S/C POWER SUPPLY 

CIRCUIT.*

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

273

TEST TC-82A

CONTINUED - REPAIRING - SPEED CONTROL POWER RELAY OR 12V DRIVER
CIRCUIT

FIG. 1

FIG. 2

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

274

TEST TC-82A

CONTINUED - REPAIRING - SPEED CONTROL POWER RELAY OR 12V DRIVER
CIRCUIT

*Perform Verification TEST VER-4A.

**Check connectors - Clean / repair as necessary.

START TEST 

TC-82A.

TURN IGNITION OFF. 

THE SERVO 4-WAY

USING AN OHMMETER,

HARNESS CONNECTOR. 

IS THE RESISTANCE 

NO 

REPAIR THE OPEN 

MEASURE THE GROUND BELOW 5.0 OHMS?

SERVO GROUND 

CIRCUIT AT...

CIRCUIT.*

FIG. 1

YES

WITH AN OHMMETER,

SPEED CONTROL VENT 

IS THE RESISTANCE 

REPAIR THE

PERFORM THE

SOL CKT AND SPEED

BELOW 5.0 OHMS FOR

YES

CIRCUIT(S) THAT 

FOLLOWING

CONTROL VACUUM SOL

EITHER 

MEASURED BELOW 5.0

MEASUREMENTS TO 

CKT. 

MEASUREMENT? 

OHMS FOR A SHORT

GROUND.. 

TO GROUND.* 

NO 

DISCONNECT THE PCM

RECONNECT THE S/C

HARNESS CONNECTOR. 

SERVO HARNESS

CONNECTOR. 

SEE GENERAL INFO 4.1

MEASURE BETWEEN

IS THE RESISTANCE 

USE AN OHMMETER IN 

PCM HARNESS

BETWEEN

NO 

CONTINUE TEST 

THE FOLLOWING

CONNECTOR CAVITIES 

TC-82A ON THE

STEPS. 

5 AND 80.

35.0 AND 55.0 

NEXT PAGE.

FIG. 2

OHMS?

YES

MEASURE BETWEEN

IS THE RESISTANCE 

PCM HARNESS

BETWEEN

NO CONTINUE 

TEST 

CONNECTOR CAVITIES 

TC-82A ON THE

5 AND 56.

35.0 AND 55.0 

NEXT PAGE.

FIG. 2

OHMS?

YES

REPALCE THE

POWERTRAIN CONTROL

MODULE.* 

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

275