Chrysler New Yorker. Manual — part 596

TEST TC-59A

REPAIRING - KNOCK SENSOR CIRCUIT

Perform TEST DTC Before Proceeding

2.7L

FIG. 1

3.5L

FIG. 2

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TEST TC-59A

REPAIRING - KNOCK SENSOR CIRCUIT

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

DISCONNECT THE KNOCK

START TEST SENSOR

HARNESS

TC-59A.

CONNECTOR.**

SEE GENERAL INFO 4.4

USING A VOLTMETER, REPAIR

THE KNOCK

TURN IGNITION ON.

MEASURE THE KNOCK

IS THE VOLTAGE

YES

SENSOR SIGNAL

(ENGINE OFF) SENSOR

SIGNAL

ABOVE 2.0 VOLT?

CIRCUIT SHORTED TO

CIRCUIT. VOLTAGE.*

FIG. 1 OR 2

NO

KEY OFF, USING AN

REPAIR THE OPEN

OHMMETER, MEASURE

IS THE RESISTANCE

NO

SENSOR

THE SENSOR BELOW 5.0 OHMS?

GROUND/RETURN

GROUND/RETURN CKT TO

CIRCUIT.*

GROUND. FIG. 1 OR 2

YES

CONTINUE TEST

TC-59A ON THE

NEXT PAGE.

T

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TEST TC-59A

CONTINUED - REPAIRING - KNOCK SENSOR CIRCUIT

2.7L

FIG. 1

3.5L

FIG. 2

2.7L

FIG. 3

3.5L

FIG. 4

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C

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D

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TEST TC-59A

CONTINUED - REPAIRING - KNOCK SENSOR CIRCUIT

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-59A

KEY OFF. DISCONNECT

CONTINUED FROM THE POWERTRAIN

THE PREVIOUS CONTROL MODULE

PAGE.

CONNECTOR MODULE.**
SEE GENERAL INFO 4.1

USING AN OHMMETER,

REPAIR THE KNOCK

MEASURE THE KNOCK

IS THE RESISTANCE

YES

SENSOR SIGNAL

SENSOR SIGNAL

BELOW 5.0 OHMS?

CIRCUIT SHORTED TO

CIRCUIT TO GND.

GROUND.*

FIG. 1 OR 2

NO

USING AN OHMMETER,

FROM THE KNOCK

MEASURE THE KNOCK

SENSOR CONNECTOR

IS THE RESISTANCE

NO

REPAIR THE OPEN

SENSOR SIGNAL

TO THE PCM.

BELOW 5.0 OHMS?

KNOCK SENSOR

CIRCUIT...

SIGNAL CIRCUIT.*

FIG. 3 OR 4

YES

USING AN OHMMETER,

THE KNOCK SENSOR

REPAIR THE KNOCK

MEASURE BETWEEN

RETURN/GROUND

IS THE RESISTANCE

YES

SENSOR SIGNAL CKT

THE KNOCK SENSOR CIRCUIT. BELOW 5.0 OHMS.

SHORTED TO

THE KNOCK

SIGNAL AND...

SENSOR RETURN/GROUND

FIG. 1 OR 2

CIRCUIT.*

NO

REPLACE THE KNOCK

TEST DRIVE

DID THE KNOCK

SENSOR.* CLEAR ALL

VEHICLE. WITH THE

SENSOR CIRCUIT

YES

REPLACE THE

TROUBLE CODE

DRB, READ TROUBLE

TROUBLE CODE

POWERTRAIN CONTROL

INFORMATION. CODES.

RETURN?

MODULE.*

NO

TEST COMPLETE.*

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