Chrysler New Yorker. Manual - part 583

TEST TC-39A

REPAIRING - NO CHANGE IN MAP FROM START TO RUN

Perform TEST DTC Before Proceeding

2.7L

3.5L

FIG. 1

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TEST TC-39A

REPAIRING - NO CHANGE IN MAP FROM START TO RUN

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

WITH THE DRB, READ 

START TEST 

TURN IGNITION ON.

CODES. IS MAP

YES

PERFORM TEST 

TC-39A.

(ENGINE OFF) SENSOR 

VOLTAGE TOO

TC-36A 

LOW CODE SET? 

NO 

START ENGINE, AND

DOES THE DRB DISPLAY

ALLOW ENGINE TO 

WITH THE DRB, READ 

"NO CHANGE IN MAP

YES

CONTINUE TEST 

IDLE FOR 30 

CODES. 

FROM START TO RUN" 

TC-39A ON NEXT 

SECONDS. WITH 

A START RUN

PAGE.

COUNT OF ZERO?

NO 

WITH THE ENGINE 

NOTE: THE ENGINE 

WITH THE DRB, SET

RPM AT 1500, READ 

IS STILL RUNNING. 

THE ENGINE SPEED

MAP SENSOR 

TO 1500 RPM. 

VOLTAGE. 

WHILE MONITORING THE

REPAIR THE WIRING 

VOLTAGE, WIGGLE THE

DID THE ENGINE 

YES

OR CONNECTOR

WIRING FROM THE MAP

STALL OR VOLTAGE

DEFECT BETWEEN THE

SENSOR TO PCM. 

BECOME ERRATIC? 

MAP SENSOR AND THE

SEE GENERAL INFO 4.4

PCM.*

NO 

STOP ACTUATION, 

AT THIS TIME, THE

WHILE MONITORING DID THE VACUUM 

YES

CONDITION REQUIRED 

THE DRB DISPLAY, 

DROP RAPIDLY BELOW

TO SET THE CODE IS 

SNAP THE THROTTLE 

3.0? 

NOT PRESENT. TEST 

OPEN AND CLOSED.

COMPLETE.* FIG. 

1

NO 

INSPECT CONDITION OF 

IS THERE A

REPAIR THE

INTAKE MANIFOLD AND

RESTRICTION OR 

YES

RESTRICTED OR 

MAP SENSOR VACUUM 

DEFECT IN THE

DEFECTIVE VACUUM 

PORTS. VACUUM 

PORTS? 

PORTS.*

SEE GENERAL INFO 4.4

NO 

REPLACE THE MAP

SENSOR.* 

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TEST TC-39A

CONTINUED - REPAIRING - NO CHANGE IN MAP FROM START TO RUN

2.7L

FIG. 1

3.5L

FIG. 2

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TEST TC-39A

CONTINUED - REPAIRING - NO CHANGE IN MAP FROM START TO RUN

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-39A 

IGNITION KEY ON.

CONTINUED FROM (ENGINE OFF) 
PREVIOUS PAGE.

REMOVE MAP SENSOR 

REMOVE THE

AND INSPECT

WAS THERE A

YES

RESTRICTION AND

FOR VACUUM RESTRICTION? 

REINSTALL THE MAP

RESTRICTIONS.

SENSOR.* 

SEE GENERAL INFO 4.4

NO 

MAP SENSOR 5-VOLT 

USING A VOLTMETER, 

SUPPLY CIRCUIT AT 

IS THE VOLTAGE

NO 

REPAIR THE OPEN 

MEASURE THE

MAP SENSOR ABOVE 4.0 VOLTS? 

MAP SENSOR 

5-VOLT 

VOLTAGE OF THE... 

CONNECTOR. 

SUPPLY CIRCUIT.*

FIG. 1 OR 2

YES

REPLACE THE MAP

SENSOR.* 

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