Chrysler New Yorker. Manual — part 601

TEST TC-65A

REPAIRING - 2/1 O2S STAYS AT CENTER

Perform TEST DTC Before Proceeding

2/1 LEFT BANK UP

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TEST TC-65A

REPAIRING - 2/1 O2S STAYS AT CENTER

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

START THE ENGINE

START TEST AND ALLOW IT

TO

TC-65A.

REACH NORMAL

OPERATING

TEMPERATURE.

USING THE DRB IN
ACTUATOR TESTS,

WITH THE DRB, READ

IS THE 2/1 OXYGEN

NO

CONTINUE TEST

SET THE ENGINE RPM

THE 2/1 OXYGEN

SENSOR STATE

TC-65A ON THE

TO 1500.

SENSOR STATE.

SWITCHING?

NEXT PAGE.

YES

WIGGLE THE 2/1

AT ANY TIME DOES

REPAIR THE OPEN

OXYGEN SENSOR

WHILE WIGGLING THE

THE 2/1 OXYGEN

YES HARNESS OR CONNECTOR

CONNECTOR AND

HARNESS, MONITOR

SENSOR STATE STAY

THAT CAUSED THE

HARNESS.

THE DRB DISPLAY.

LOCKED AT CENTER?

OXYGEN SENSOR STATE
TO STAY AT CENTER.*

NO

AT THIS TIME, THE

USING THE

CONDITION REQUIRED

SCHEMATIC AS A

WERE ANY PROBLEMS

YES

REPAIR AS

TO SET THE TROUBLE

GUIDE, INSPECT THE

FOUND?

NECESSARY.*

CODE IS NOT PRESENT.

WIRING AND

CONNECTORS.

NO

TEST COMPLETE.*

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TEST TC-65A

CONTINUED - REPAIRING - 2/1 O2S STAYS AT CENTER

2/1 LEFT BANK UP

FIG. 1

2/1 LEFT BANK UP

FIG. 2

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TEST TC-65A

CONTINUED - REPAIRING - 2/1 O2S STAYS AT CENTER

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-65A

CONTINUED FROM

THE PREVIOUS

TURN IGNITION OFF.

PAGE.

DISCONNECT THE

IS ANY TERMINAL

2/1 O2 SENSOR

CORRODED, DAMAGED,

YES

REPAIR OR REPLACE

HARNESS CONNECTOR.**

PUSHED OUT OR

AS NECESSARY.*

MISWIRED?

SEE GENERAL INFO 4.4

NO

REPAIR THE 2/1 O2

USING AN OHMMETER,

...GROUND CIRCUIT

IS THE RESISTANCE

YES

SENSOR GROUND

MEASURE BETWEEN THE

AND GROUND.

ABOVE 5.0 OHMS?

CIRCUIT FOR AN

2/1 O2 SENSOR...

OPEN.*

FIG. 1

NO

KEY ON, CONNECT A

WITH THE DRB IN

JUMPER WIRE BETWEEN

SENSORS, READ THE

IS THE VOLTAGE

YES

REPLACE THE 2/1 O2

THE 2/1 O2 SENSOR

2/1 O2 SENSOR

ABOVE 1.0 VOLT?

SENSOR.*

SIGNAL CKT AND B(+).

VOLTAGE.

FIG. 1

NO

KEY OFF, DISCONNECT

THE POWERTRAIN DISCONNECT

THE

CONTROL MODULE JUMPER

WIRE.

HARNESS CONNECTOR.**
SEE GENERAL INFO 4.1

USING AN OHMMETER,

..FROM THE 2/1 O2

MEASURE THE 2/1 O2

SENSOR CONNECTOR TO

IS THE RESISTANCE

YES

REPLACE THE

SENSOR SIGNAL

THE PCM CONNECTOR.

BELOW 5.0 OHMS?

POWERTRAIN CONTROL

CIRCUIT...

MODULE.*

FIG. 2

NO

REPAIR THE OPEN

2/1 O2 SENSOR

SIGNAL CIRCUIT.*

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