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

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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.* 

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TEST 25A

REPAIRING

(

LEFT HEATED SEAT SWITCH OPEN/SHORTED TO GROUND

(

TROUBLE

CODE

Perform TEST 1A Before Proceeding

FIG. 1

FIG. 2

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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.* 

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