Chrysler New Yorker. Manual - part 474

TEST 27A

CONTINUED - REPAIRING

(

LEFT THERMISTOR OUT OF RANGE HIGH

(

TROUBLE

CODE

FIG. 1

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TEST 27A

CONTINUED - REPAIRING

(

LEFT THERMISTOR OUT OF RANGE HIGH

(

TROUBLE

CODE

*Perform Verification TEST VER-4A.

**Check connectors - Clean / repair as necessary.

TEST 27A

CONTINUED FROM DISCONNECT 

THE

THE PREVIOUS MHSMM "C2" 

HARNESS

PAGE.

CONNECTOR.** 

USING A VOLTMETER, 

REPAIR THE LEFT 

MEASURE THE LEFT 

IS THE VOLTAGE

YES

SEAT TEMPERATURE

SEAT TEMPERATURE 5

ABOVE 0.3 VOLTS? 

SENSOR 5 VOLT 

VOLT SUPPLY CKT. 

SUPPLY CKT FOR A

FIG. 1

SHORT TO BATTERY.*

NO 

REPLACE THE MEMORY 
HEATED SEAT/MIRROR

MODULE.* 

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TEST 28A

REPAIRING

(

RIGHT SEAT HEAT OUTPUT OPEN

(

TROUBLE CODE

Perform TEST 1A Before Proceeding

FIG. 1

FIG. 2

FIG. 3

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TEST 28A

REPAIRING

(

RIGHT SEAT HEAT OUTPUT OPEN

(

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 28A. 

SEE GENERAL INFO 4.0

KEY OFF. USING AN 

OHMMETER,

DISCONNECT THE

MEASURE THE RIGHT

IS THE RESISTANCE 

YES

REPLACE THE MEMORY 

MHSMM "C3" HARNESS

SEAT HEATER B(+) 

BELOW 8.5 OHMS?

HEATED SEAT/MIRROR

CONNECTOR.** 

DRIVER (CAV 6).

MODULE.* 

FIG. 1

NO 

DISCONNECT THE RIGHT

USING AN OHMMETER,

SEAT CUSHION HEATER 

MEASURE THE RIGHT

4-WAY HARNESS

SEAT HEATER B(+) 

CONNECTOR.** DRIVER 

CIRCUIT

FIG. 2

BETWEEN... 

THE MHSMM "C3" CONN 

REPAIR THE OPEN 

AND RIGHT SEAT 

IS THE RESISTANCE 

NO 

RIGHT SEAT HEATER 

CUSHION HEATER 4-WAY

BELOW 5.0 OHMS?

B(+) DRIVER 

CONN (HARNESS SIDE). 

CIRCUIT.*

FIG. 3

YES

USING AN OHMMETER,

AND THE HEATED 

MEASURE BETWEEN

SEAT DRIVER 

IS THE RESISTANCE 

NO 

REPLACE THE SEAT 

THE RIGHT SEAT CIRCUITS 

(CAVITIES

BELOW 2.5 OHMS?

CUSHION.*

HEATER B(+) 

A & B).

DRIVER...

FIG. 2

YES

CONTINUE TEST 
28A ON THE NEXT 

PAGE.

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