Chrysler New Yorker. Manual — part 509

TEST 4A

CONTINUED- REPAIRING BODY CONTROL MODULE

(

NO RESPONSE

(

FIG. 1

FIG. 2

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TEST 4A

CONTINUED- REPAIRING BODY CONTROL MODULE

(

NO RESPONSE

(

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST 4A

CONTINUED FROM DISCONNECT

THE DRB

THE PREVIOUS

FROM THE DATA LINK

PAGE.

CONNECTOR.

USING A VOLTMETER,

MEASURE THE PCI BUS

IS THE VOLTAGE

YES

PERFORM TEST

CIRCUIT AT THE DATA

ABOVE 8.0 VOLTS?

12A.

LINK CONNECTOR.

FIG. 1

NO

IS THE VOLTAGE

YES

PERFORM TEST

BELOW 0.2 VOLTS? 13A.

NO

REMOVE THE BODY

ENSURE THAT THE

CONTROL MODULE

JUNCTION BLOCK

TURN IGNITION ON

TURN IGNITION OFF.

FROM THE JUNCTION

CONNECTORS ARE

(ENGINE OFF).

BLOCK. CONNECTED.

USING A VOLTMETER, JUNCTION

BLOCK

MEASURE THE FUSED

20-WAY INTERNAL

IS THE VOLTAGE

NO

REPLACE THE

B (+) CIRCUIT AT

CONNECTOR.

ABOVE 10.0 VOLTS?

JUNCTION BLOCK.*

THE...

FIG. 2

YES

CONTINUE TEST
4A ON THE NEXT

PAGE.

NOTE: FOR LOCATION
OF ALL COMPONENTS.

SEE GENERAL INFO 4.0

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635

TEST 4A

CONTINUED- REPAIRING BODY CONTROL MODULE

(

NO RESPONSE

(

FIG. 1

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636

TEST 4A

CONTINUED- REPAIRING BODY CONTROL MODULE

(

NO RESPONSE

(

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST 4A

CONTINUED FROM

THE PREVIOUS

PAGE.

KEY OFF.

AT THE JUNCTION

REPAIR THE OPEN

USING AN OHMMETER,

BLOCK 20-WAY

IS THE RESISTANCE

NO

GROUND CIRCUIT. IF

MEASURE BETWEEN

INTERNAL BELOW 5.0 OHMS?

OK, REPLACE THE

GND AND THE GROUND CONNECTOR.

JUNCTION

BLOCK.*

CKT (CAV 1)...

FIG. 1

YES

USING AN OHMMETER,

AT THE JUNCTION

REPAIR THE OPEN

MEASURE BETWEEN

BLOCK 20-WAY

IS THE RESISTANCE

NO

GROUND CIRCUIT. IF

GND AND THE GROUND INTERNAL BELOW 5.0 OHMS?

OK, REPLACE THE

CKT (CAV 20)...

CONNECTOR.

JUNCTION BLOCK.*

FIG. 1

YES

REPLACE THE BODY
CONTROL MODULE.*

NOTE: FOR LOCATION
OF ALL COMPONENTS.

SEE GENERAL INFO 4.0

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