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.

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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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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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