Chrysler New Yorker. Manual — part 580

TEST TC-35A

CONTINUED - REPAIRING - NO VEHICLE SPEED SENSOR SIGNAL

FIG. 1

FIG. 2

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156

TEST TC-35A

CONTINUED - REPAIRING - NO VEHICLE SPEED SENSOR SIGNAL

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-35A

CHECK FOR A SHORT

CONTINUED FROM

IS THE VOLTAGE

YES

TO VOLTAGE ON THE

THE PREVIOUS

ABOVE 6.0 IN THE

VSS SIGNAL CKT. IF

PAGE.

PREVIOUS STEP?

OK, REPLACE THE

PCM.*

NO

KEY OFF. DISCONNECT

WITH AN OHMMETER,

THE PCM HARNESS

MEASURE THE VSS

IS

THE RESISTANCE NO REPAIR

THE OPEN

CONNECTOR.** SIGNAL

CIRCUIT FROM

BELOW 5.0 OHMS?

VSS SIGNAL

THE TCM TO THE PCM.

CIRCUIT.*

SEE GENERAL INFO 4.1

FIG. 1

YES

USING AN OHMMETER,

REPAIR THE SHORT

MEASURE BETWEEN THE

IS THE RESISTANCE

YES

TO GROUND IN THE

THE VSS SIGNAL BELOW 5.0 OHMS?

VSS SIGNAL

CIRCUIT AND GROUND.

CIRCUIT.*

FIG. 2

NO

REPLACE THE

POWERTRAIN CONTROL

MODULE.*

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TEST TC-36A

REPAIRING - MAP SENSOR VOLTAGE TOO LOW

Perform TEST DTC Before Proceeding

2.7L

3.5L

FIG. 1

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TEST TC-36A

REPAIRING - MAP SENSOR VOLTAGE TOO LOW

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

START TEST

WITH THE DRB, READ

IS THE MAP SENSOR

YES

CONTINUE TEST

TC-36A.

THE MAP SENSOR

VOLTAGE BELOW

TC-36A ON THE

VOLTAGE. 0.4 VOLT?

NEXT

PAGE.

NO

START ENGINE, WITH
THE DRB, READ THE

IS THE MAP SENSOR

YES

CONTINUE TEST

MAP SENSOR

VOLTAGE BELOW

TC-36A ON THE

VOLTAGE. 0.4 VOLT?

NEXT

PAGE.

NO

TURN IGNITION ON,

WITH THE DRB, READ

IS THE MAP SENSOR

YES

CONTINUE TEST

(ENGINE OFF)

THE MAP SENSOR

VOLTAGE BELOW

TC-36A ON THE

VOLTAGE. 0.4 VOLT?

NEXT

PAGE.

NO

START ENGINE.

DID MAP VOLTAGE

REPAIR THE HARNESS

WIGGLE MAP SENSOR

MONITOR THE DRB

DROP BELOW 0.2

YES

OR CONNECTOR THAT

CONNECTOR & HARNESS. DISPLAY.

VOLTS WHILE

CAUSED

THE VOLTAGE

WIGGLING?

CHANGE.*

SEE GENERAL INFO 4.4

NO

AT THIS TIME, THE

USING THE

CONDITION REQUIRED SCHEMATIC AS

A

WERE ANY PROBLEMS

YES

REPAIR AS

TO SET THE CODE IS

GUIDE, INSPECT THE

FOUND?

NECESSARY.*

NOT PRESENT. WIRING

AND

FIG. 1

CONNECTORS.

NO

REFER TO GEN INFO

3.3.2 FOR

INFORMATION ON

TEST COMPLETE.*

INACTIVE TROUBLE

CODES.

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