Chrysler New Yorker. Manual — part 640

TEST TC-154B

REPAIRING - AMBIENT/BATTERY TEMP SENSOR VOLTAGE TOO HIGH

Perform TEST TC-154A Before Proceeding

FIG. 1

FIG. 2

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TEST TC-154B

REPAIRING - AMBIENT/BATTERY TEMP SENSOR VOLTAGE TOO HIGH

Perform TEST TC-154A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

DISCONNECT THE BODY

START TEST CONTROL MODULE

(C-3)

TC-154B. HARNESS CONNECTOR.**

SEE GENERAL INFO 4.1

AMBIENT TEMPERATURE

REPAIR THE SENSOR

USING AN OHMMETER,

SENSOR GROUND CIRC

IS THE RESISTANCE

YES

GROUND CIRCUIT FOR

MEASURE THE... . (CAV

10)

BELOW 500K

A PARTIAL SHORT TO

(500,000) OHMS?

GROUND.*

NO

AMBIENT TEMPERATURE

REPAIR THE AMBIENT

USING AN OHMMETER

SENSOR SIGNAL CIRC.,

IS THE RESISTANCE

YES

TEMPERATURE SENSOR

MEASURE THE...

TO GROUND .(CAV 5)

BELOW 50K (50,000)

SIGNAL CKT FOR A

OHMS?

PARTIAL SHORT TO

FIG. 1

GROUND.*

NO

MEASURE THE AMBIENT

REPAIR THE AMBIENT

USING AN OHMMETER

TEMPERATURE SENSOR

IS THE RESISTANCE

YES

TEMP SENSOR SIGNAL

IN

THE FOLLOWING

SIGNAL, AND GROUND BELOW 50K (50,000) CKT FOR A SHORT TO

STEPS...

CIRCUITS (CAV 10)TO

OHMS?

THE SENSOR GROUND

(CAV 5) FIG. 1

CIRCUIT.*

NO

MEASURE THE TEMP

SENSOR SIGNAL

IS THE RESISTANCE

NO

REPAIR THE OPEN

CIRCUIT FROM BCM TO

BELOW 5.0 OHMS?

TEMP SENSOR SIGNAL

TEMP SENSOR CONN.

CIRCUIT.*

FIG. 1 AND 2

YES

REPLACE THE BODY
CONTROL MODULE.*

.,

TO GROUND

FIG. 1

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TEST TC-155A

REPAIRING - 1/1 O2S VOLTAGE SHORTED TO GROUND

Perform TEST DTC Before Proceeding

1/1 RIGHT BANK UP

FIG. 1

1/1 RIGHT BANK UP

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TEST TC-155A

REPAIRING - 1/1 O2S VOLTAGE SHORTED TO GROUND

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE:

START TEST

REFER TO FIGURE 1

TC-155A. FOR POSSIBLE

TROUBLE CODE

CAUSES.

WITH THE DRB IN

IS THE

THE CONDITION

SENSORS, MONITOR

SUSPECT O2

SENSOR NO REQUIRED

TO

SET

START ENGINE.

THE

VOLTAGE BELOW

THIS TROUBLE CODE

SUSPECT O2 SENSOR

0.16 VOLTS?

IS NOT PRESENT AT

VOLTAGE. THIS

TIME.*

YES

KEY OFF.

WITH THE DRB IN

IS THE

DISCONNECT THE

SENSORS, MONITOR

SUSPECT O2 SENSOR

NO

REPLACE THE

SUSPECT O2 SENSOR

THE

VOLTAGE BELOW

SUSPECT O2

CONNECTOR.**

SUSPECT O2 SENSOR

0.16 VOLTS?

SENSOR.*

SEE GENERAL INFO 4.4

VOLTAGE.

YES

KEY OFF. DISCONNECT

THE POWERTRAIN
CONTROL MODULE

HARNESS CONNECTOR.**
SEE GENERAL INFO 4.1

USING AN OHMMETER,

SIGNAL CIRCUIT AND

REPAIR THE

MEASURE THE

THE SENSOR

IS THE RESISTANCE

YES

SUSPECT O2 SENSOR

RESISTANCE BETWEEN

SIGNAL/O2S RETURN

BELOW 5.0 OHMS?

SIGNAL CIRCUIT FOR A

THE SUSPECT O2 CIRCUIT.

SHORT TO

SIGNAL/O2S

SENSOR...

RETURN.*

NO

USING AN OHMMETER,

REPAIR THE

MEASURE THE

SENSOR SIGNAL

IS THE RESISTANCE

YES

SUSPECT O2 SENSOR

RESISTANCE BETWEEN

CIRCUIT AND ENGINE

BELOW 5.0 OHMS?

SIGNAL CIRCUIT FOR

THE SUSPECT O2...

GROUND.

A SHORT TO ENGINE

GROUND.*

NO

REPLACE THE

POWERTRAIN CONTROL

MODULE.*

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