Chrysler New Yorker. Manual — part 472

TEST 24A

REPAIRING

(

LEFT HEATED SEAT SWITCH STUCK IN HIGH STATE

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

FIG. 1

M

E

M

O

R

Y

S
Y
S

T

E

M

486

TEST 24A

REPAIRING

(

LEFT HEATED SEAT SWITCH STUCK IN HIGH STATE

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-4A.

**Check connectors - Clean / repair as necessary.

NOTE: FOR LOCATION
OF ALL COMPONENTS

START TEST 24A.

SEE GENERAL INFO 4.0

DISCONNECT THE LEFT

USING THE DRB

SEAT HEATER SWITCH

ERASE THE TROUBLE

HARNESS CONNECTOR.** CODE.

FIG. 1

TURN IGNITION OFF.

TURN IGNITION ON

DOES THE "LEFT

(ENGINE OFF).

HEATED SEAT SWITCH YES

REPLACE THE SEAT

USING THE DRB

OPEN/SHORTED TO

HEATER SWITCH.*

SELECT "READ

GROUND" TROUBLE

DTC’s".

CODE APPEAR?

NO

USING A VOLTMETER, REPAIR

THE LEFT

DISCONNECT THE

MEASURE LEFT SEAT

IS THE VOLTAGE

YES

SEAT HEATER SWITCH

MHSMM "C1" HARNESS

HEATER SW MUX CKT

ABOVE 0.2 VOLTS

MUX CIRCUIT FOR A

CONNECTOR.**

(CAV 6) TO GROUND.

SHORT TO VOLTAGE.*

FIG. 1

NO

REPLACE THE MEMORY
HEATED SEAT/MIRROR

MODULE.*

M

E

M

O

R

Y

S
Y
S

T

E

M

487

TEST 25A

REPAIRING

(

LEFT HEATED SEAT SWITCH OPEN/SHORTED TO GROUND

(

TROUBLE

CODE

Perform TEST 1A Before Proceeding

FIG. 1

FIG. 2

M

E

M

O

R

Y

S
Y
S

T

E

M

488

TEST 25A

REPAIRING

(

LEFT HEATED SEAT SWITCH OPEN/SHORTED TO GROUND

(

TROUBLE

CODE

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-4A.

**Check connectors - Clean / repair as necessary.

NOTE: FOR LOCATION
OF ALL COMPONENTS

START TEST 25A.

SEE GENERAL INFO 4.0

USING A VOLTMETER,

DISCONNECT THE

MEASURE LEFT SEAT

IS THE VOLTAGE

YES

REPLACE THE MEMORY

MHSMM "C1" HARNESS

HEATER SW MUX CKT

ABOVE 10.0 VOLTS?

HEATED SEAT/MIRROR

CONNECTOR.**

(CAV 18) TO GROUND.

MODULE.*

FIG. 1

NO

DISCONNECT THE LEFT

USING AN OHMMETER,

REPAIR THE LEFT

SEAT HEATER SWITCH

MEASURE LEFT SEAT

IS THE RESISTANCE

YES

SEAT HEATER SWITCH

HARNESS CONNECTOR.**

HEATER SWITCH MUX

BELOW 100.0 OHMS?

MUX CKT FOR A

CKT (CAV 3) TO GND.

SHORT TO GROUND.*

FIG. 2

FIG. 2

NO

CONNECT A JUMPER USING AN

OHMMETER,

WIRE FROM THE LEFT

MEASURE LEFT SEAT

IS THE RESISTANCE

NO

REPAIR THE OPEN

SEAT HEATER SW MUX

HEATER SWITCH MUX

BELOW 5.0 OHMS?

LEFT SEAT HEATER

CKT (CAV 18) TO GND.

CKT (CAV 3) TO GND.

SWITCH MUX CKT.*

FIG. 1

FIG. 2

YES

REPLACE THE SEAT
HEATER SWITCH.*

M

E

M

O

R

Y

S
Y
S

T

E

M

489