Chrysler New Yorker. Manual - part 585

TEST TC-40A

CONTINUED - REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

FIG. 1

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176

TEST TC-40A

CONTINUED - REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-40A 

TURN IGNITION OFF. 

CONTINUED FROM 

THE PREVIOUS REMOVE 

JUMPER 

PAGE.

WIRE.

USING A 12 VOLT 

REPAIR THE OPEN OR 

TEST LIGHT, 

WITH THE OTHER

DOES THE TEST 

NO 

HIGH RESISTANCE 

CONNECT ONE END TO 

END, TOUCH THE

LIGHT ILLUMINATE 

SENSOR GROUND 

A 12V SOURCE...

SENSOR GROUND.

BRIGHT?

CIRCUIT.*

YES

DISCONNECT THE

USING AN OHMMETER,

POWERTRAIN CONTROL

MEASURE THE CKP

MODULE HARNESS

SENSOR SIGNAL 

CONNECTOR.** CIRCUIT... 

SEE GENERAL INFO 4.1

FROM THE CKP SENSOR 

REPAIR THE SENSOR 

CONNECTOR TO THE PCM

IS THE RESISTANCE 

NO 

SIGNAL CIRCUIT FOR

CONNECTOR. 

BELOW 5.0 OHMS?

AN OPEN OR HIGH 

RESISTANCE 

FIG. 1

CONDITION.*

YES

USING AN OHMMETER,

AND GROUND FROM 

TEST ALL POWER AND

MEASURE BETWEEN

EITHER CONNECTOR. 

IS THE RESISTANCE 

NO 

GROUND CIRCUITS AT 

THE CKP SENSOR BELOW 5.0 OHMS?

THE POWERTRAIN 

SIGNAL CIRCUIT... 

CONTROL MODULE 

FIG. 1

BEFORE NEXT REPAIR.* 

YES

REPLACE THE

POWERTRAIN CONTROL

MODULE.* 

REPAIR THE CKP

SENSOR SIGNAL CKT

FOR A SHORT TO 

GROUND.* 

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TEST TC-40B

REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

Perform TEST TC-40A Before Proceeding

FIG. 1

FIG. 2

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178

TEST TC-40B

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 CMP

TC-40B.

SENSOR HARNESS

CONNECTOR.** 

SEE GENERAL INFO 4.4

TURN IGNITION ON.

CIRCUIT IN THE CKP
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 

YES

SUPPLY CIRCUIT FOR

THE 8-VOLT CONNECTOR. 

BELOW 5.0 OHMS?

A SHORT TO 

SUPPLY...

GROUND.* 

FIG. 1

NO 

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

TEST THE POWER AND
GROUND CIRCUITS AT 

REPLACE THE

THE PCM BEFORE THE

POWERTRAIN CONTROL

NEXT REPAIR.* 

MODULE.* 

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