Chrysler New Yorker. Manual — part 471

TEST 22A

CONTINUED - REPAIRING

(

LEFT SEAT HEAT OUTPUT SHORTED TO GROUND

(

TROUBLE CODE

FIG. 1

M

E

M

O

R

Y

S
Y
S

T

E

M

482

TEST 22A

CONTINUED - REPAIRING

(

LEFT SEAT HEAT OUTPUT SHORTED TO GROUND

(

TROUBLE CODE

*Perform Verification TEST VER-4A.

**Check connectors - Clean / repair as necessary.

TEST 22A

TURN IGNITION OFF.

CONTINUED FROM

THE PREVIOUS USING AN

PAGE.

OHMMETER...

MEASURE THE LEFT
SEAT HEATER B(+)

IS THE RESISTANCE

NO

REPLACE THE MEMORY

DRIVER CKT (CAV A)

BELOW 1000.0 (1K)

HEATED SEAT/MIRROR

TO GROUND.

OHMS?

MODULE.*

FIG. 1

YES

REPAIR THE LEFT
SEAT HEATER B(+)
DRIVER CKT FOR A

SHORT TO GROUND.*

M

E

M

O

R

Y

S
Y
S

T

E

M

483

TEST 23A

REPAIRING

(

LEFT HEATED SEAT SWITCH STUCK IN LOW STATE

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

FIG. 1

M

E

M

O

R

Y

S
Y
S

T

E

M

484

TEST 23A

REPAIRING

(

LEFT HEATED SEAT SWITCH STUCK IN LOW 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 23A.

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

485