Chrysler New Yorker. Manual — part 576

TEST TC-30A

REPAIRING - ECT SENSOR VOLTAGE TOO LOW

Perform TEST DTC Before Proceeding

FIG. 1

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TEST TC-30A

REPAIRING - ECT SENSOR VOLTAGE TOO LOW

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE: A SEVERE

START TEST OVERHEATING

TC-30A.

CONDITION COULD

CAUSE THIS CODE TO

APPEAR.

START ENGINE. WITH IS

THE ENGINE

THE DRB, READ THE

COOLANT

YES

CONTINUE TEST

ENGINE COOLANT

TEMPERATURE SENSOR

TC-30A ON THE

TEMPERATURE SENSOR VOLTAGE BELOW

NEXT

PAGE.

(ECT) VOLTAGE. 0.5 VOLT?

NO

USE THE SCHEMATIC AS WAS THERE ANY

REPAIR

THE HARNESS

A GUIDE AND WIGGLE

MONITOR THE DRB

ENGINE COOLANT

YES

OR CONNECTOR THAT

ENGINE COOLANT

DISPLAY.

TEMPERATURE SENSOR

CAUSED THE VOLTAGE

TEMPERATURE SENSOR VOLTAGE CHANGE?

CHANGE.*

CONNECTOR & HARNESS.

NO

AT THIS TIME, THE

USING THE

CONDITION REQUIRED

SCHEMATIC AS A

WERE ANY PROBLEMS

YES

REPAIR AS

TO SET THE CODE IS

GUIDE, INSPECT THE

FOUND?

NECESSARY.*

NOT PRESENT. WIRING

AND

FIG. 1

CONNECTORS.

NO

REFER TO GEN INFO

3.3.2 FOR

INFORMATION ON

TEST COMPLETE.*

INACTIVE TROUBLE

CODES.

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TEST TC-30A

CONTINUED - REPAIRING - ECT SENSOR VOLTAGE TOO LOW

FIG. 1

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TEST TC-30A

CONTINUED - REPAIRING - ECT SENSOR VOLTAGE TOO LOW

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-30A

KEY ON, ENGINE OFF.

CONTINUED FROM DISCONNECT

THE ECT

THE PREVIOUS SENSOR

HARNESS

PAGE.

CONNECTOR.**

SEE GENERAL INFO 4.4

WITH THE DRB, READ

REPLACE THE ENGINE

ENGINE COOLANT

IS THE ECT SENSOR

YES

COOLANT

TEMPERATURE SENSOR VOLTAGE ABOVE 4.0

TEMPERATURE

VOLTAGE. VOLTS?

SENSOR.*

NO

KEY OFF, DISCONNECT

USING AN OHMMETER,

REPAIR THE SENSOR

THE POWERTRAIN

MEASURE THE ECT

IS THE RESISTANCE

YES

SIGNAL CIRCUIT FOR

CONTROL MODULE SENSOR

SIGNAL BELOW 5.0 OHMS?

A SHORT TO

HARNESS CONNECTOR.** CIRCUIT TO

GROUND.

GROUND.*

SEE GENERAL INFO 4.1

FIG. 1

NO

USING AN OHMMETER,

ECT SENSOR SIGNAL

REPAIR THE ECT

MEASURE THE

CIRCUIT AND THE

IS THE RESISTANCE

YES

SENSOR SIGNAL

RESISTANCE BETWEEN

ECT SENSOR GROUND

BELOW 5.0 OHMS?

CIRCUIT SHORTED TO

THE... CIRCUIT.

THE ECT SENSOR

FIG. 1

GROUND CIRCUIT.*

NO

REPLACE THE

POWERTRAIN CONTROL

MODULE.*

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