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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398

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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