Chrysler New Yorker. Manual — part 574

TEST TC-26A

REPAIRING - THROTTLE POSITION SENSOR VOLTAGE LOW

Perform TEST DTC Before Proceeding

FIG. 1

FIG. 2

FIG. 3

TYPICAL

FIG. 4

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TEST TC-26A

REPAIRING - THROTTLE POSITION SENSOR VOLTAGE LOW

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

IS THE GLOBAL GOOD

START TEST

WITH THE DRB, READ

TRIP DISPLAYED AND

YES

CONTINUE TEST

TC-26A.

THE DTC’S.

EQUAL TO 0?

TC-26A ON THE

NEXT PAGE.

NO

WITH THE DRB, READ

IS THE THROTTLE

THE THROTTLE

POSITION SENSOR

YES

CONTINUE TEST

POSITION SENSOR

VOLTAGE BELOW 0.2

TC-26A ON THE

(TP SENSOR)

VOLT?

NEXT PAGE.

VOLTAGE.

NO

WHILE MONITORING
THE DRB, SLOWLY

IS THE VOLTAGE

NO

REPLACE THE

OPEN AND CLOSE THE

CHANGE SMOOTH?

THROTTLE POSITION

THROTTLE.

SENSOR.*

YES

STOP MOVING

WAS THERE ANY

REPAIR THE HARNESS

LINKAGE. WIGGLE

MONITOR THE DRB

CHANGE IN THROTTLE

YES

OR CONNECTOR THAT

THROTTLE POSITION

DISPLAY.

POSITION SENSOR

CAUSED THE VOLTAGE

SENSOR CONNECTOR

VOLTAGE WHEN

CHANGE.*

AND HARNESS. WIGGLED?

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. 3

CONNECTORS.

NO

USING THE DRB, GO TO

THE CODE ON DTC

REFER TO GENERAL

THE FREEZE FRAME

SCREEN. UTILIZE

INFO 3.3.2 FOR

SCREEN. MAKE SURE

THIS INFO FOR

ADDITIONAL

TEST COMPLETE.*

THE "CAUSED BY DTC"

ADDED DIAGNOSTICS.

INFORMATION ON

HEX CODE MATCHES...

FIG. 4

INTERMITTENT CODES

FIG. 1 AND 2

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TEST TC-26A

CONTINUED - REPAIRING - THROTTLE POSITION SENSOR VOLTAGE LOW

2.7L

FIG. 1

3.5L

FIG. 2

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TEST TC-26A

CONTINUED - REPAIRING - THROTTLE POSITION SENSOR VOLTAGE LOW

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-26A

WHILE MONITORING

CONTINUED FROM

THE DRB, SLOWLY

IS THE VOLTAGE

NO

REPLACE THE

THE PREVIOUS

OPEN AND CLOSE THE

CHANGE SMOOTH?

THROTTLE POSITION

PAGE.

THROTTLE.

SENSOR.*

YES

DISCONNECT THE

USING A VOLTMETER,

THROTTLE POSITION

MEASURE THE 5-VOLT

IS THE VOLTAGE

YES

REPAIR THE OPEN

SENSOR HARNESS

SUPPLY CKT AT THE

BELOW 4.0 VOLTS?

5-VOLT SUPPLY

CONNECTOR.** TPS HARNESS

CIRCUIT.

CONNECTOR.

NO

DISCONNECT THE TP
HARNESS CONNECTOR. IS

THE VOLTAGE

YES

REPLACE THE

WITH THE DRB, READ

ABOVE 4.0 VOLTS?

THROTTLE POSITION

THE TP SENSOR

SENSOR.*

VOLTAGE.

NO

KEY OFF. DISCONNECT

THE TRANSMISSION KEY ON. READ

THE

IS THE VOLTAGE

YES

REPLACE THE

CONTROL MODULE.**

THROTTLE POSITION

ABOVE 4.0 VOLTS?

TRANSMISSION

SENSOR VOLTAGE.

CONTROL MODULE.*

SEE GENERAL INFO 4.1

NO

KEY OFF. DISCONNECT

MEASURE THE

REPAIR THE

THE POWERTRAIN

RESISTANCE BETWEEN

IS THE RESISTANCE

YES

THROTTLE POSITION

CONTROL MODULE

THE TP SENSOR SIGNAL

BELOW 5.0 OHMS?

SENSOR SIGNAL

HARNESS CONNECTOR.** CIRCUIT AND GROUND.

CIRCUIT FOR A

SEE GENERAL INFO 4.1

FIG. 1 OR 2

SHORT TO GROUND.*

NO

MEASURE THE

AND THE SENSOR REPAIR

THE SENSOR

RESISTANCE BETWEEN

GROUND CIRCUIT.

IS THE RESISTANCE

YES

SIGNAL CIRCUIT

THE TP SENSOR

BELOW 5.0 OHMS?

SHORTED TO SENSOR

SIGNAL CIRCUIT...

GROUND CIRCUIT.*

FIG. 1 OR 2

NO

REPLACE THE

POWERTRAIN CONTROL

MODULE.*

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