Chrysler New Yorker. Manual — part 564

TEST TC-18A

CONTINUED - REPAIRING - EVAP PURGE SOLENOID CIRCUIT

FIG. 1

FIG. 2

FIG. 3

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TEST TC-18A

CONTINUED - REPAIRING - EVAP PURGE SOLENOID CIRCUIT

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TC-18A DISCONNECT

THE

CONTINUED FROM PROPORTIONAL

PURGE

THE PREVIOUS SOLENOID

HARNESS

PAGE.

CONNECTOR.**

SEE GENERAL INFO 4.1

USING A VOLTMETER, REPAIR

THE

NOTE: PROPORTIONAL

MEASURE THE

DOES THE VOLTAGE

NO

PROPORTIONAL PURGE

PURGE SOLENOID

PROPORTTIONAL PURGE

SWITCH FROM 0 TO

SOLENOID CONTROL

STILL ACTUATING. SOLENOID

CONTROL

7.0 VOLTS?

CIRCUIT.*

CKT. FIG. 1

YES

STOP THE

USING A VOLTMETER,

REPAIR THE SHORT

PROPORTIONAL

MEASURE THE PWM

IS THE VOLTAGE

YES

TO VOLTAGE IN THE

SOLENOID ACTUATING

PURGE SOLENOID

ABOVE 1.0 VOLT?

PWM PURGE SENSE

USING THE DRB, SENSE CIRCUIT.

CIRCUIT.*

ACTUATE ASD RELAY. FIG.

1

NO

KEY OFF. DISCONNECT

USING AN OHMMETER,

THE POWERTRAIN

MEASURE RESISTANCE

IS THE RESISTANCE

NO

REPAIR THE OPEN IN

CONTROL MODULE OF

THE PWM PURGE

BELOW 5.0 OHMS?

THE PWM PURGE

HARNESS CONNECTOR.** SENSE CIRCUIT.

SENSE CIRCUIT.*

SEE GENERAL INFO 4.1

FIG. 2

YES

USING AN OHMMETER,

REPAIR THE SHORT

MEASURE THE PWM

IS THE RESISTANCE

YES

TO GROUND IN THE

PURGE SENSE CKT TO BELOW 5.0 OHMS?

PWM PURGE SENSE

GROUND.

CIRCUIT.

FIG. 1

NO

USING AN OHMMETER,

MEASURE THE

IS THE RESISTANCE

NO

REPLACE THE

RESISTANCE OF THE

14.2 OHMS +/- 1.4?

PROPORTIONAL PURGE

PROPORTIONAL PURGE

SOLENOID.*

SOLENOID CKT. FIG. 3

YES

REPLACE THE

POWERTRAIN CONTROL

MODULE.*

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TEST TC-19A

REPAIRING - INJECTOR #3 CONTROL CIRCUIT

Perform TEST TC-21A Before Proceeding

FIG. 1

FIG. 2

FIG. 3

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TEST TC-19A

REPAIRING - INJECTOR #3 CONTROL CIRCUIT

Perform TEST TC-21A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE: IT MAY BE

DISCONNECT INJECTOR

START TEST

NECESSARY TO

REFER TO SERVICE

#3 HARNESS

TC-19A.

REMOVE THE INTAKE

MANUAL FOR

CONNECTOR.**

PLENUM IN THE

INSTRUCTIONS.

SEE GENERAL INFO 4.1

FOLLOWING STEPS.

USING A VOLTMETER,

USING THE DRB, MEASURE THE ASD

DOES

THE VOLTAGE

NO

PERFORM TEST

ACTUATE THE ASD

RELAY OUTPUT

CYCLE FROM 0 TO 12

TC-19B.

RELAY. CIRCUIT. VOLTS?

FIG. 1

YES

USING AN OHMMETER,

MEASURE THE

IS

THE RESISTANCE NO REPLACE THE FUEL

RESISTANCE ACROSS

BETWEEN 10.0 AND

INJECTOR.*

THE INJECTOR.

16.0 OHMS?

YES

DISCONNNECT THE

RECONNECT THE

POWERTRAIN CONTROL

INJECTOR HARNESS

MODULE HARNESS

CONNECTOR. CONNECTORS.**

SEE GENERAL INFO 4.1

USING A FUSED

USING A 12 VOLT

JUMPER, JUMPER B+ TO

TEST LIGHT, PROBE

DID THE TEST LIGHT

YES

REPLACE THE

THE ASD RELAY OUTPUT

THE INJECTOR #3

ILLUMINATE?

POWERTRAIN CONTROL

CKT AT THE PCM

CIRCUIT TO GROUND.

MODULE.*

HARNESS CONN. FIG. 2

FIG. 2

NO

USING AN OHMMETER,

REPAIR THE SHORT

DISCONNECT THE

MEASURE THE

IS THE RESISTANCE

NO

TO GROUND IN THE

INJECTOR HARNESS

INJECTOR #3 DRIVER

BELOW 5.0 OHMS?

INJECTOR #3 DRIVER

CONNECTOR.** CIRCUIT TO

GROUND.

CIRCUIT.*

FIG. 1

YES

DRIVER CIRCUIT

USING AN OHMMETER,

FROM THE INJECTOR

IS THE RESISTANCE

NO

REPAIR THE OPEN

MEASURE THE

CONNECTOR TO THE

BELOW 5.0 OHMS?

INJECTOR #3 DRIVER

INJECTOR #3 ...

PCM CONN.

CIRCUIT.*

FIG. 3

YES

CONTINUE TEST

TC-19A ON THE

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