Chrysler New Yorker. Manual — part 508

TEST 3A

CONTINUED - REPAIRING AUTOMATIC TEMPERATURE CONTROL MODULE

(

NO

RESPONSE

(

OR

(

ATC MESSAGES NOT RECEIVED

(

TROUBLE CODE

FIG. 1

FIG. 2

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TEST 3A

CONTINUED - REPAIRING AUTOMATIC TEMPERATURE CONTROL MODULE

(

NO

RESPONSE

(

OR

(

ATC MESSAGES NOT RECEIVED

(

TROUBLE CODE

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST 3A

CONTINUED FROM

TURN IGNITION ON

THE PREVIOUS (ENGINE OFF).

PAGE.

USING A VOLTMETER,

REPAIR THE OPEN

MEASURE THE IGNITION

IS THE VOLTAGE

NO

IGNITION SWITCH

SWITCH OUTPUT CKT AT

ABOVE 10.0 VOLTS?

OUTPUT CKT FROM

FUSE #17.

IGNITION SWITCH TO

FIG. 1

JUNCTION BLOCK.*

YES

TURN THE IGNITION

OFF.

REINSTALL THE

FUSE.

DISCONNECT THE

KEY ON. USING A

REPAIR THE OPEN

AUTOMATIC

VOLTMETER, MEASURE

IS THE VOLTAGE

NO

FUSED IGNITION

TEMPERATURE CONTROL

THE FUSED IGNITION

ABOVE 10.0 VOLTS?

SWITCH OUTPUT

(ATC) HEAD HARNESS

SWITCH OUTPUT CKT.

BETWEEN THE FUSE

CONNECTOR.** FIG.

2

AND THE ATC HEAD.*

YES

KEY OFF. USING AN

OHMMETER,

CLOSE ALL DOORS

MEASURE BETWEEN

IS

THE RESISTANCE NO REPAIR

THE OPEN

AND MAKE SURE

GROUND AND BOTH

BELOW 5.0 OHMS FOR

GROUND

COURTESY LAMPS ARE

GROUND CIRCUITS.

BOTH CIRCUITS?

CIRCUIT(S).*

OFF. FIG.

2

YES

USING A VOLTMETER,

MEASURE THE PCI

TURN THE HEADLAMPS

DOES THE VOLTAGE

NO

REPAIR THE OPEN

BUS CIRCUIT.

ON AND OBSERVE THE

MODULATE ABOVE 0.3

PCI BUS CIRCUIT.*

VOLTMETER. VOLTS?

FIG. 2

YES

REPLACE THE

AUTOMATIC

TEMPERATURE

CONTROL (ATC)

HEAD.*

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TEST 4A

REPAIRING BODY CONTROL MODULE

(

NO RESPONSE

(

OR

(

BATTERY POWER TO

MODULE DISCONNECTED

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

FIG. 1

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632

TEST 4A

REPAIRING BODY CONTROL MODULE

(

NO RESPONSE

(

OR

(

BATTERY POWER TO

MODULE DISCONNECTED

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TURN THE IGNITION

DOES THE DRB

ON.

DISPLAY

NO CONTINUE

TEST

START TEST 4A.

READ THE BCM

"BATTERY POWER TO

4A ON THE NEXT

DTC’S. MODULE PAGE.

DISCONNECTED" DTC?

YES

KEY OFF.

REMOVE THE BODY

CONTROL MODULE

FROM THE JUNCTION

BLOCK.

KEY ON.

JUNCTION BLOCK

USING A VOLTMETER,

20-WAY INTERNAL

IS THE VOLTAGE

NO

REPLACE THE

MEASURE THE FUSED

CONNECTOR.

ABOVE 10.0 VOLTS?

JUNCTION BLOCK.*

B (+) CIRCUIT AT

THE ...

FIG. 1

YES

REPLACE THE BODY
CONTROL MODULE.*

NOTE: FOR LOCATION
OF ALL COMPONENTS.

SEE GENERAL INFO 4.0

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