Chrysler New Yorker. Manual — part 456

TEST 9A

REPAIRING INCORRECT BLOWER MOTOR SPEEDS

Perform TEST 1A Before Proceeding

FIG. 1

FIG. 2

FIG. 3

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TEST 9A

REPAIRING INCORRECT BLOWER MOTOR SPEEDS

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

DISCONNECT THE

A/C-HEATER CONTROL

START TEST 9A.

"C2" HARNESS
CONNECTOR.**

FIG. 1

KEY ON. USING A

#2 TN LO BLO MTR DR.

VOLTMETER, MEASURE

#3 LB M2 BLO MTR DR.

IS THE VOLTAGE

YES

REPLACE THE

EACH OF THE BLOWER

#7 LG M1 BLO MTR DR.

ABOVE 10.0 VOLTS

A/C-HEATER CONTROL

MOTOR DRIVER CKTS

#10 BK/TN HI BLO MTR

ON EACH CIRCUIT?

HEAD.*

LISTED... FIG. 1

DRIVER. FIG. 1

NO

KEY OFF. DISCONNECT

THE BLOWER MOTOR

USE AN OHMMETER IN

RESISTOR HARNESS

THE FOLLOWING

CONNECTOR.** STEPS.

FIG. 2

MEASURE THE

RESISTANCE OF THE

ABOVE 10.0 VOLTS

CIRCUIT(S) THAT

IN THE PREVIOUS

DID NOT MEASURE... STEP...

FROM THE

TO THE BLOWER

IS THE RESISTANCE

REPAIR THE OPEN

A/C-HEATER CONTROL

MOTOR RESISTOR

BELOW 5.0 OHMS ON

NO

BLOWER MOTOR

"C2" HARNESS

HARNESS CONNECTOR.

EACH OF THE

DRIVER

CONNECTOR... CIRCUITS

TESTED?

CIRCUIT(S).*

FIG. 3

YES

REPLACE THE BLOWER

MOTOR RESISTOR.*

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423

TEST 10A

REPAIRING CONTROL HEAD ILLUMINATION

Perform TEST 1A Before Proceeding

FIG. 1

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424

TEST 10A

REPAIRING CONTROL HEAD ILLUMINATION

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

KEY OFF. DISCONNECT

THE A/C-HEATER

START TEST 10A.

CONTROL "C1" HARNESS

CONNECTOR.**

FIG. 1

WITH AN OHMMETER,

MEASURE BETWEEN

IS

THE RESISTANCE NO REPAIR

THE OPEN

GROUND AND THE

BELOW 5.0 OHMS?

GROUND CIRCUIT.*

GROUND CIRCUIT

(CAV 3). FIG. 1

YES

USING A VOLTMETER,

TURN THE PARK

MEASURE THE PANEL

LAMPS ON.

LAMPS DRIVER

CIRCUIT.

FIG. 1

ROTATE THE DIMMER

DOES THE VOLTAGE

SWITCH THUMB WHEEL

RANGE FROM BELOW

YES

REPLACE THE BULBS

AND OBSERVE THE

3.5 TO ABOVE 9.0

IN THE A/C-HEATER

VOLTAGE. VOLTS WHEN

THUMB

CONTROL HEAD.*

WHEEL IS ROTATED?

NO

REPAIR THE OPEN

PANEL LAMPS DRIVER

CIRCUIT.*

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