Chrysler New Yorker. Manual — part 664

TEST NTC-10B

CHECKING THE OXYGEN SENSOR SWITCHING

Perform TEST NTC-1A Before Proceeding

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

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.

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

493

TEST NTC-11A

CHECKING THE OXYGEN SENSOR HEATER

Perform TEST NTC-1A Before Proceeding

FIG. 1

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

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.*

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

495