Chrysler New Yorker. Manual - part 687

TEST NS-5A

CONTINUED - CHECKING THE FUEL PUMP

FIG. 1

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TEST NS-5A

CONTINUED - CHECKING THE FUEL PUMP

*Perform Verification TEST VER-1A.

**Check connectors - Clean / repair as necessary.

TEST NS-5A

CONTINUED FROM 

THE PREVIOUS 

PAGE.

USING APPROPRIATE

DISCONNECT FUEL PUMP 

SERVICE MANUAL MODULE 

HARNESS

PROCEDURE, REMOVE 

CONNECTOR.** 

FUEL TANK AND... 

SEE GENERAL INFO 4.5

CAUTION: IT IS 

CRITICAL THAT THE

FUEL PUMP CONNECTOR

HAS A CLEAN TIGHT

CONNECTION.**

IGNITION ON.

USING A 12 VOLT TEST 

REPAIR THE OPEN 

LIGHT, CHECK THE

DID THE LIGHT

NO 

FUEL PUMP RELAY

WITH THE DRB, 

FUEL PUMP RELAY

ILLUMINATE?

OUTPUT CIRCUIT IN 

ACTUATE THE FUEL 

OUTPUT CIRCUIT. 

THE FUEL PUMP 

SYSTEM.

FIG. 1

JUMPER HARNESS.*

YES

REPAIR THE HIGH 

NO 

RESISTANCE IN THE

WAS IT BRIGHT?

FUEL PUMP OUTPUT 

CIRCUIT IN JUMPER 

HARNESS.*

YES

CONNECT A 12 VOLT 

REPAIR THE OPEN 

TEST LIGHT FROM THE

DID THE LIGHT

NO 

FUEL PUMP GROUND 

FUEL PUMP RELAY

ILLUMINATE?

CIRCUIT IN JUMPER 

OUTPUT TO THE

HARNESS.*

GROUND.

FIG. 1

YES

REPAIR THE HIGH 

NO 

RESISTANCE IN THE

WAS IT BRIGHT?

GROUND CIRCUIT IN 

JUMPER HARNESS.*

YES

REPLACE THE FUEL 

PUMP MODULE.* 

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TEST NS-6A

REPAIRING A

(

NO RESPONSE

(

CONDITION

Perform TEST DTC Before Proceeding

2.7L

FIG. 1

3.5L

FIG. 2

FIG. 3

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TEST NS-6A

REPAIRING A

(

NO RESPONSE

(

CONDITION

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-1A.

**Check connectors - Clean / repair as necessary.

START TEST 

NOTE: ENSURE PCM

DOES THE VEHICLE

YES

PERFORM TEST 

NS-6A. CONNECTORS 

ARE

START? NS-6B. 

SECURE 

.

NO 

DISCONNECT THE TP 

WITH A VOLTMETER, 

REPAIR THE HIGH 

SENSOR CONNECTOR.** 

MEASURE THE TP 

IS THE VOLTAGE

YES

RESISTANCE IN THE

SENSOR 5-VOLT 

ABOVE 6.0 VOLTS? 

PCM GROUND 

TURN IGNITION ON.

SUPPLY CIRCUIT. 

CIRCUITS.* 

SEE GENERAL INFO 4.4

FIG. 1 OR 2

NO 

KEY OFF. DISCONNECT 

KEY ON. WITH A 12 

REPAIR THE OPEN 

THE POWERTRAIN 

VOLT TEST LIGHT, 

DID THE LIGHT

NO 

FUSED IGN SWITCH 

CONTROL MODULE CHECK THE FUSED

ILLUMINATE?

OUTPUT 

CKT BETWEEN

HARNESS CONNECTOR.** IGN SWITCH 

OUTPUT 

PCM & IGN SWITCH 

SEE GENERAL INFO 4.1

CKT. FIG. 3

(CHECK FUSE).*

YES

REPAIR THE HIGH 

NO 

RESISTANCE IN THE

WAS IT BRIGHT?

IGNITION SWITCH 
OUTPUT CIRCUIT.*

YES

WITH A 12 VOLT TEST 

LIGHT, CHECK THE

DID THE LIGHT

NO 

REPAIR THE OPEN 

FUSED B(+) CIRCUIT. 

ILLUMINATE?

FUSED B(+) 
CIRCUIT.** 

FIG. 3

YES

REPAIR THE HIGH 

NO 

RESISTANCE IN THE

WAS IT BRIGHT?

FUSED B(+) 
CIRCUIT.*

YES

PERFORM TEST 

NS-6B. 

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