Chrysler New Yorker. Manual — part 684

TEST NS-2A

CHECKING FUEL SYSTEM

Perform TEST DTC Before Proceeding

TYPCIAL DRB SCREEN

FIG. 1

N

O

S

T

A
R

T

T

E
S

T

S

572

TEST NS-2A

CHECKING FUEL SYSTEM

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-1A.

**Check connectors - Clean / repair as necessary.

ENSURE THE

REPAIR THE

START TEST

THROTTLE CABLES

IS THE THROTTLE

YES

CONDITION THAT

NS-2A. ARE NOT HOLDING

HELD

OPEN?

HOLDS THE THROTTLE

THE THROTTLE OPEN.

BODY OPEN.*

NO

WITH THE DRB, READ

IS THE VOLTAGE

YES

PERFORM TEST

THROTTLE POSITION

ABOVE 1.2 VOLTS?

NTC-7A.

SENSOR VOLTAGE.

NO

WITH THE DRB, READ
THE VEHICLE THEFT

DOES THE DRB

YES

CONTINUE TEST

SECURITY SYSTEM

DISPLAY "FUEL ON"?

NS-2A ON THE

STATUS.

NEXT PAGE.

FIG. 1

NO

PERFORM VEHICLE

IF BODY

THEFT SECURITY DIAGNOSTICS DO

NOT

REPLACE THE

SYSTEM TEST IN THE

FIND A PROBLEM

POWERTRAIN CONTROL

BODY DIAGNOSTIC

WITH THE THEFT

MODULE.*

PROCEDURES MANUAL.*

ALARM...

N

O

S

T

A
R

T

T

E
S

T

S

573

TEST NS-2A

CONTINUED - CHECKING FUEL SYSTEM

Perform TEST NS-2A Before Proceeding

2.7L

FIG. 1

3.5L

FIG. 2

FIG. 3

N

O

S

T

A
R

T

T

E
S

T

S

574

TEST NS-2A

CONTINUED - CHECKING FUEL SYSTEM

Perform TEST NS-2A Before Proceeding

*Perform Verification TEST VER-1A.

**Check connectors - Clean / repair as necessary.

TEST NS-2A

WITH THE DRB,

CONTINUED FROM

ACTUATE THE ASD

IS THE FUEL PUMP

NO

PERFORM TEST

THE PREVIOUS

FUEL SYSTEM TEST

OPERATING?

NS-5A.

PAGE.

AND CHECK FOR FUEL

PUMP OPERATION.

YES

WARNING: THE FUEL

KEY OFF. USING THE

SYSTEM MUST BE

APPROPRIATE

OPENED AND MAY BE

SERVICE MANUAL

UNDER HIGH PRESSURE.

RELIEVE FUEL

SEE GENERAL INFO 9.1

PRESSURE AND...

CONNECT A FUEL

NOTE: FOR THE 2.7L,

PRESSURE GAUGE

RECOMMENDED TOOL IS

(C-4799-B) TO THE

6539. USE BETWEEN

FUEL RAIL.

THE FUEL RAIL AND

FIG. 1 OR 2

CHASSIS SUPPLY LINE.

NOTE: THE FUEL

TANK MUST BE AT

LEAST 1/4 FULL FOR

THE FOLLOWING

TESTS.

TURN IGNITION ON.

IS THE FUEL

READ THE FUEL

PRESSURE ABOVE

YES

REPLACE THE FUEL

WITH THE DRB,

PRESSURE GAUGE.

SPECIFICATION?

PRESSURE

ACTUATE THE ASD

REGULATOR/FILTER.*

FUEL SYSTEM TEST.

FIG. 3

NO

IS THE FUEL

PRESSURE BELOW

YES

PERFORM TEST

SPECIFICATION? NS-4A.

FIG. 3

NO

ATTEMPT TO START

DID THE VEHICLE

YES

PERFORM TEST

STOP

ACTUATION. VEHICLE. START & STALL

NS-7A.

REPEATEDLY?

NO

THE FUEL SYSTEM

PERFORM TEST

PRESSURE CHECKS OK

NS-3A.

AT THIS TIME.

N

O

S

T

A
R

T

T

E
S

T

S

575