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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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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