Chrysler New Yorker. Manual - part 586

TEST TC-40C

REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

FIG. 1

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

180

TEST TC-40C

REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

REMOVE THE

START TEST CRANKSHAFT 

POSITION 

TC-40C.

(CKP) SENSOR HARNESS

CONNECTOR. 

FIG. 1

INSPECT THE

IS THE FLYWHEEL 

YES

REPAIR AS 

FLYWHEEL FOR

DAMAGED? 

NECESSARY.*

DAMAGE.

NO 

REPLACE THE

CRANKSHAFT 

POSITION SENSOR.* 

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

181

TEST TC-40D

REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

Perform TEST TC-40A Before Proceeding

FIG. 1

FIG. 2

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

182

TEST TC-40D

REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

Perform TEST TC-40A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TURN IGNITION OFF. 

START TEST DISCONNECT 

THE CKP

TC-40D.

SENSOR HARNESS

CONNECTOR.** 

SEE GENERAL INFO 4.4

KEY ON. USING A

VOLTMETER, MEASURE

IS THE VOLTAGE

NO 

REPAIR THE OPEN IN 

VOLTAGE OF THE

ABOVE 7.0 VOLTS? 

THE 8-VOLT SUPPLY 

8-VOLT SUPPLY 

CIRCUIT.*

CIRCUIT. FIG. 1

YES

DISCONNECT THE CMP

CIRCUIT IN THE CKP

SENSOR.

SENSOR CONNECTOR. 

IS THE VOLTAGE

YES

REPLACE THE

USING A VOLTMETER, ABOVE 7.0 VOLTS? 

CAMSHAFT 

POSITION 

MEASURE THE 8-VOLT 

SENSOR.* 

SUPPLY...

FIG. 1

NO 

DISCONNECT THE

POWERTRAIN CONTROL

TURN IGNITION OFF. 

MODULE HARNESS

CONNECTOR.** 

SEE GENERAL INFO 4.1

USING AN OHMMETER,

CIRCUIT AND GROUND 

REPAIR THE 8-VOLT 

MEASURE BETWEEN

AT THE CKP SENSOR 

IS THE RESISTANCE 

NO 

SUPPLY CIRCUIT FOR

THE 8-VOLT CONNECTOR. 

BELOW 5.0 OHMS?

A SHORT TO 

SUPPLY...

GROUND.* 

FIG. 1

YES

FROM THE CKP

USING AN OHMMETER 

SENSOR CONNECTOR

IS THE RESISTANCE 

NO 

REPAIR THE OPEN 

MEASURE THE 8-VOLT 

TO THE PCM

BELOW 5.0 OHMS?

8-VOLT SUPPLY 

SUPPLY CIRCUIT... 

CONNECTOR. 

CIRCUIT.*

FIG. 2

YES

TURN IGNITION OFF. 

USING AN OHMMETER,

CKP AND CMP SENSOR MEASURE THE SENSOR IS 

THE RESISTANCE 

NO 

REPAIR 

THE OPEN 

HARNESS CONNECTORS 

GROUND CIRCUIT TO 

BELOW 5.0 OHMS?

SENSOR GROUND 

STILL

GROUND.

CIRCUIT. 

DISCONNECTED.

FIG. 1

YES

TEST THE POWER AND
GROUND CIRCUITS AT 

REPLACE THE

THE PCM BEFORE THE

POWERTRAIN CONTROL

NEXT REPAIR.* 

MODULE.* 

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

183