Chrysler New Yorker. Manual — part 515

TEST 11A

REPAIRING MEMORY HEATED SEAT/MIRROR MODULE

(

NO RESPONSE

(

OR

(

MHSMM MESSAGES NOT RECEIVED

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

FIG. 1

FIG. 2

FIG. 3

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TEST 11A

REPAIRING MEMORY HEATED SEAT/MIRROR MODULE

(

NO RESPONSE

(

OR

(

MHSMM MESSAGES NOT RECEIVED

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-5A.

**Check connectors - Clean / repair as necessary.

NOTE: FOR LOCATION
OF ALL COMPONENTS.

START TEST 11A.

SEE GENERAL INFO 4.0

USING A VOLTMETER,
MEASURE THE FUSED

IS THE VOLTAGE

NO

REPAIR THE OPEN

B(+) CIRCUIT.

ABOVE 10.0 VOLTS?

FUSED B(+)
CIRCUIT.*

FIG. 1

YES

TURN ALL

USING AN OHMMETER,

ACCESSORIES AND

MEASURE BETWEEN

IS

THE RESISTANCE NO REPAIR

THE OPEN

THE COURTESY LAMPS

GROUND AND THE

BELOW 5.0 OHMS?

GROUND CIRCUIT.*

OFF. GROUND

CIRCUIT

(CAVITY 1). FIG. 1

YES

DISCONNECT THE

MHSMM C1 HARNESS

TURN THE IGNITION,

CONNECTOR.** HEADLAMPS AND

COURTESY LAMPS ON.

FIG. 2

USING A VOLTMETER,

MEASURE THE PCI

DOES THE VOLTAGE

YES

REPLACE THE MEMORY

BUS CIRCUIT.

MODULATE ABOVE 0.3

HEATED SEAT/MIRROR

VOLTS? MODULE.*

FIG. 2

NO

KEY OFF. CONNECT A JUMPER

DISCONNECT THE BCM

WIRE BETWEEN

C4 HARNESS

GROUND AND THE PCI

CONNECTOR.** BUS CIRCUIT

(CAVITY 9). FIG. 3

WITH AN OHMMETER,

MEASURE BETWEEN

IS

THE RESISTANCE NO REPAIR

THE OPEN

GROUND AND THE PCI

BELOW 5.0 OHMS?

PCI BUS CIRCUIT.*

BUS CIRCUIT.

FIG. 2

YES

REPLACE THE BODY
CONTROL MODULE.*

KEY OFF. DISCONNECT
THE MHSMM C4 HARNESS

CONNECTOR.**

FIG. 1

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659

TEST 12A

REPAIRING PCI BUS CIRCUIT SHORTED TO BATTERY

Perform TEST 1A Before Proceeding

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660

TEST 12A

REPAIRING PCI BUS CIRCUIT SHORTED TO BATTERY

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

NOTE: ANSWER THE

NOTE: PRIOR TO ASSOCIATED

WITH

QUESTION WHETHER A

REPLACING A MODULE

SUSPECTED MODULE

START TEST 12A.

MODULE IS PRESENT

IN THIS TEST,

FOR A SHORT TO ANY

OR NOT.

CHECK WIRING AND

PCI BUS CIRCUIT.

CONNECTORS...

NOTE: ENSURE THAT

THE IGNITION KEY

IS IN THE RUN

POSITION.

DISCONNECT THE

DOES THE DRB

REPLACE THE

TRANSMISSION DISPLAY

NO

TRANSMISSION

CONTROLE MODULE

"BUS SHORT TO

CONTROL MODULE

(TCM) HARNESS

BATTERY"?

(TCM).*

CONNECTOR.**

YES

DISCONNECT THE

DOES THE DRB

POWERTRAIN CONTROL

DISPLAY

NO

REPLACE THE

MODULE (PCM)

"BUS SHORT TO

POWERTRAIN CONTROL

HARNESS

BATTERY"?

MODULE (PCM).*

CONNECTORS.**

YES

DISCONNECT THE

DOES THE DRB

REPLACE THE

CONTROLLER DISPLAY

NO

CONTROLLER

ANTILOCK BRAKE

"BUS SHORT TO

ANTILOCK BRAKE

(CAB) HARNESS

BATTERY"?

(CAB).*

CONNECTOR.**

YES

DISCONNECT THE

DOES THE DRB

REPLACE THE

OVERHEAD TRAVEL

DISPLAY

NO

OVERHEAD TRAVEL

INFORMATION MODULE "BUS

SHORT TO

INFORMATION MODULE

(OTIS) HARNESS CONN.

BATTERY"?

(OTIS).*

IF EQUIPPED.**

YES

DISCONNECT THE

DOES THE DRB

REPLACE THE

AUTO TEMP CONTROL

DISPLAY

NO

AUTOMATIC

HEAD (ATC) HARNESS

"BUS SHORT TO

TEMPERATURE

CONNECTOR. BATTERY"?

CONTROL HEAD

IF EQUIPPED.**

(ATC).*

YES

CONTINUE TEST
12A ON THE NEXT

PAGE.

NOTE: FOR LOCATIONS

OF ALL COMPONENTS.

SEE GENERAL INFO 4.0

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