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

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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.*

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TEST TC-82A

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

FIG. 1

FIG. 2

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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.*

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