Chrysler New Yorker. Manual - part 664

TEST NTC-10B

CHECKING THE OXYGEN SENSOR SWITCHING

Perform TEST NTC-1A Before Proceeding

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492

TEST NTC-10B

CHECKING THE OXYGEN SENSOR SWITCHING

Perform TEST NTC-1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST NTC-10B

NOTE: ENGINE MUST 

CONTINUED FROM 

WITH THE DRB, 

BE RUNNING AND AT 

THE PREVIOUS RESET THE ADAPTIVE 

NORMAL 

OPERATING

PAGE.

FUEL MEMORY.

TEMPERATURE. 

NOTE: THE 1/2,2/2

WITH THE DRB, READ 

O2 SENSOR(S)

O2 SENSOR 

THE O2 SENSOR 

ARE THE O2 SENSOR 

YES

CHECK OKAY AT 

DO NOT SWITCH 

VOLTAGES FOR 10 

VOLTAGES SWITCHING

THIS TIME.

LIKE THE 1/1,2/1

SECONDS OR MORE.

NORMALLY?

O2 SENSOR.

TEST PASSED.

NO 

PERFORM TEST 

NTC-13A. 

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493

TEST NTC-11A

CHECKING THE OXYGEN SENSOR HEATER

Perform TEST NTC-1A Before Proceeding

FIG. 1

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494

TEST NTC-11A

CHECKING THE OXYGEN SENSOR HEATER

Perform TEST NTC-1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE: USE

START TEST APPROPRIATE

NTC-11A. CONNECTOR FOR THE

O2 SENSOR THAT YOU

ARE TESTING. 

TURN IGNITION ON.

WITH THE DRB, 
ACTUATE THE O2 
SENSOR HEATER 

TEST.

WAIT TWO MINUTES

ARE THE 1/1, 2/1

FOR O2 SENSOR 

WITH THE DRB, READ 

O2 SENSOR 

NO 

CONTINUE TEST 

VOLTAGES TO 

THE 1/1, 2/1 O2 

VOLTAGE(S) BETWEEN

NTC-11A ON THE

STABILIZE. 

SENSOR VOLTAGE(S).

0.4 AND 0.6 VOLT?

NEXT PAGE.

YES

NOTE: THE O2 SENSOR 

NOTE: THE DRB IS 

VOLTAGE STAYING

STILL ACTUATING

BETWEEN 0.4V & 0.6V 

THE O2 SENSOR 

INDICATES A PROBLEM

HEATER TEST.

WITH THAT SENSOR CKT

DISCONNECT THE

USING A VOLTMETER, 

CHECK FUSES OR 

UPSTREAM OXYGEN 

MEASURE THE ASD

IS THE VOLTAGE

NO 

REPAIR THE OPEN 

SENSOR HARNESS

RELAY OUTPUT CIRCUIT

ABOVE 10.0 VOLTS? 

ASD RELAY OUTPUT 

CONNECTOR.** 

AT SENSOR CONNECTOR. 

CIRCUIT.*

SEE GENERAL INFO 4.4

FIG. 1

YES

WITH THE DRB, STOP 
THE ACTUATOR TEST.

USING AN OHMMETER,

GROUND CIRCUIT AND

REPAIR THE OPEN 

MEASURE THE

GROUND.

IS THE RESISTANCE 

NO 

HEATER GROUND 

RESISTANCE BETWEEN

BELOW 5.0 OHMS?

CIRCUIT TO THE

THE HEATER...

APPROPRIATE OXYGEN 

FIG. 1

SENSOR.* 

YES

REPLACE THE

APPROPRIATE 1/1 OR 

2/1 O2 SENSOR.* 

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495