Chrysler New Yorker. Manual — part 632

TEST TC-129A

REPAIRING - 1/2 O2S STAYS AT CENTER

Perform TEST DTC Before Proceeding

1/2 RIGHT BANK DOWN

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TEST TC-129A

REPAIRING - 1/2 O2S STAYS AT CENTER

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

START TEST

TURN IGNITION ON

TC-129A. (ENGINE OFF).

WITH THE DRB,

WAIT FOR THE

MONITOR THE 1/2 O2 VOLTAGE READING TO
SENSOR VOLTAGE FOR

STABILIZE BETWEEN

A FEW MINUTES. 0.4 AND 0.6 VOLTS.

WITH THE DRB,

IS THE 1/2 O2

ACTUATE THE O2 MONITOR THE 1/2 O2 SENSOR

VOLTAGE

YES

CONTINUE

TEST

SENSOR HEATER

SENSOR VOLTAGE FOR

STILL BETWEEN

TC-129A ON THE

TEST.

UP TO TWO MINUTES.

0.4 AND 0.6 VOLTS?

NEXT PAGE.

NO

DISCONNECT THE

IS ANY TERMINAL

STOP THE O2 HEATER

1/2 O2 SENSOR

CORRODED, DAMAGED,

YES

REPAIR OR REPLACE

TEST AND TURN

HARNESS CONNECTOR.**

PUSHED OUT OR

AS NECESSARY.*

IGNITION OFF.

MISWIRED?

SEE GENERAL INFO 4.4

NO

DISCONNECT THE

IS ANY TERMINAL

POWERTRAIN CONTROL

CORRODED, DAMAGED,

YES

REPAIR OR REPLACE

MODULE HARNESS

PUSHED OUT OR

AS NECESSARY.*

CONNECTORS.**

MISWIRED?

SEE GENERAL INFO 4.1

NO

REPLACE THE 1/2 O2

SENSOR.*

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TEST TC-129A

CONTINUED - REPAIRING - 1/2 O2S STAYS AT CENTER

1/2 RIGHT BANK DOWN

FIG. 1

1/2 RIGHT BANK DOWN

FIG. 2

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TEST TC-129A

CONTINUED - REPAIRING - 1/2 O2S STAYS AT CENTER

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST TC-129A
CONTINUED FROM

STOP THE O2 HEATER

THE PREVIOUS TEST

AND TURN

PAGE.

IGNITION OFF.

DISCONNECT THE 1/2

IS ANY TERMINAL

O2 SENSOR HARNESS

CORRODED, DAMAGED,

YES

REPAIR OR REPLACE

CONNECTOR.**

PUSHED OUT OR

AS NECESSARY.*

MISWIRED?

SEE GENERAL INFO 4.4

NO

USING AN OHMMETER,

GROUND CIRCUIT AT

MEASURE THE

THE O2 CONNECTOR

IS THE RESISTANCE

NO

REPAIR THE OPEN O2

RESISTANCE BETWEEN

AND GROUND.

BELOW 5.0 OHMS?

SENSOR GROUND

THE SENSOR...

FIG. 1

CIRCUIT.*

YES

DISCONNECT THE

IS ANY TERMINAL

POWERTRAIN CONTROL

CORRODED, DAMAGED,

YES

REPAIR OR REPLACE

MODULE HARNESS

PUSHED OUT OR

AS NECESSARY.*

CONNECTORS.**

MISWIRED?

SEE GENERAL INFO 4.1

NO

USING AN OHMMETER,

THE O2 SENSOR

MEASURE THE

CONNECTOR AND THE

IS THE RESISTANCE

NO

REPAIR THE OPEN O2

RESISTANCE OF THE

PCM HARNESS

BELOW 5.0 OHMS?

SENSOR SIGNAL

SENSOR SIGNAL

CONNECTOR.

CIRCUIT.*

CIRCUIT BETWEEN... FIG.

2

YES

RECONNECT THE PCM

THE SENSOR SIGNAL

WITH THE DRB, READ

CONNECTORS, TURN CIRCUIT AND SENSOR

THE 1/2 O2

VOLTS.

YES

REPLACE THE 1/2 O2

IGNITION ON.

GROUND CIRCUIT AT

SENSOR.*

CONNECT A JUMPER

THE O2 CONNECTOR.

IS THE 1/2 O2

WIRE BETWEEN...

FIG. 1

VOLTS BELOW 0.2?

NO

REPLACE THE

POWERTRAIN CONTROL

MODULE.*

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