Chrysler New Yorker. Manual — part 585

TEST TC-40A

CONTINUED - REPAIRING - NO CRANK REFERENCE SIGNAL AT PCM

FIG. 1

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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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177

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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