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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