Chrysler New Yorker. Manual — part 665

TEST NTC-11A

CONTINUED - CHECKING THE OXYGEN SENSOR HEATER

FIG. 1

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O

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E

C

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496

TEST NTC-11A

CONTINUED - CHECKING THE OXYGEN SENSOR HEATER

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST NTC-11A

NOTE: USE

CONTINUED FROM APPROPRIATE

THE PREVIOUS CONNECTOR FOR THE

PAGE.

O2 SENSOR THAT YOU

ARE TESTING.

NOTE: THE DRB IS

ARE THE 1/2, 2/2

WITH THE DRB,

STILL ACTUATING

WITH THE DRB, READ

O2 SENSOR VOLTAGES

NO

STOP THE

THE O2 SENSOR

THE 1/2, 2/2 O2 BETWEEN

ACTUATION TEST.

HEATER TEST.

SENSOR VOLTAGE(S).

0.4 AND 0.6 VOLT?

TEST PASSED.

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 1/2,

USING A VOLTMETER,

CHECK FUSES OR

2/2 O2 SENSOR

MEASURE THE ASD

IS THE VOLTAGE

NO

REPAIR THE OPEN

HARNESS CONNECTOR.**

RELAY OUTPUT CIRCUIT

ABOVE 10.0 VOLTS?

ASD RELAY OUTPUT

IN SENSOR CONNECTOR.

CIRCUIT.*

SEE GENERAL INFO 4.4

FIG. 1

YES

WITH THE DRB, STOP
THE ACTUATOR TEST.

USING AN OHMMETER,

REPAIR THE OPEN

MEASURE THE

GROUND CIRCUIT AND

IS THE RESISTANCE

NO

HEATER GROUND

RESISTANCE BETWEEN

GROUND.

BELOW 5.0 OHMS?

CIRCUIT TO THE

THE HEATER...

APPROPRIATE O2

FIG. 1

SENSOR.*

YES

REPLACE THE

APPROPRIATE 1/2 OR

2/2 O2 SENSOR.*

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

497

TEST NTC-12A

CHECKING IDLE AIR CONTROL MOTOR

Perform TEST NTC-1A Before Proceeding

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

498

TEST NTC-12A

CHECKING IDLE AIR CONTROL MOTOR

Perform TEST NTC-1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

WITH THE DRB IN

WITH THE DRB,

START TEST

ACTUATOR TESTS,

IS THE ENGINE

YES

STOP ALL TESTS.

NTC-12A.

SET ENGINE SPEED

SPEED 1400 RPM

IAC MOTOR IS

TO 1400 RPM.

100 RPM?

OPERATING OK.
TEST PASSED.

NO

WITH THE DRB, STOP

INSPECT THE ENGINE

IS THERE ANY

YES

REPAIR VACUUM

ALL TESTS. FOR ANY VACUUM

VACUUM

LEAKS? LEAK(S) AS

LEAK(S). NECESSARY.*

NO

TURN KEY OFF.

DISCONNECT THE

DISCONNECT THE IDLE

POWERTRAIN CONTROL

AIR CONTROL MOTOR

MODULE HARNESS

CONNECTOR.** CONNECTOR (C2).**

SEE GENERAL INFO 4.2

SEE GENERAL INFO 4.1

IAC CONNECTOR

DOES AN

DETERMINE IF AN

#1 DRIVER

YES

REPAIR THE

OPEN CIRCUIT

&

OPEN CIRCUIT

EXISTS BETWEEN...

PCM CONNECTOR

OPEN CIRCUIT.

#1 DRIVER.

EXIST?

NO

IAC CONNECTOR

DOES AN

DETERMINE IF AN

#2 DRIVER

YES

REPAIR THE

OPEN CIRCUIT

&

OPEN CIRCUIT

EXISTS BETWEEN...

PCM CONNECTOR

OPEN CIRCUIT.

#2 DRIVER.

EXIST?

NO

IAC CONNECTOR

DOES AN

DETERMINE IF AN

#3 DRIVER

YES

REPAIR THE

OPEN CIRCUIT

&

OPEN CIRCUIT

EXISTS BETWEEN...

PCM CONNECTOR

OPEN CIRCUIT.

#3 DRIVER.

EXIST?

NO

IAC CONNECTOR

DOES AN

DETERMINE IF AN

#4 DRIVER

YES

REPAIR THE

OPEN CIRCUIT

&

OPEN CIRCUIT

EXISTS BETWEEN...

PCM CONNECTOR

OPEN CIRCUIT.

#4 DRIVER.

EXIST?

NO

REPLACE THE IDLE

AIR CONTROL

MOTOR.*

N

O

T

R

O

U
B

L

E

C

O

D

E

T

E
S

T

S

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