Chrysler New Yorker. Manual — part 426

TEST 3A

CONTINUED - REPAIRING

(

DIMMING LEVEL SWITCH FAILURE

(

FIG. 1

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TEST 3A

CONTINUED - REPAIRING

(

DIMMING LEVEL SWITCH FAILURE

(

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

TEST 3A

DISCONNECT THE

CONTINUED FROM HEADLAMP

SWITCH

THE PREVIOUS HARNESS

PAGE.

CONNECTOR.**

MAKE SURE ALL

WITH AN OHMMETER,

REPAIR THE OPEN

DOORS ARE CLOSED,

MEASURE BETWEEN

IS

THE RESISTANCE NO HEADLAMP

SWITCH

THE IGNITION IS

GROUND AND THE

BELOW 20.0 OHMS?

RETURN CIRCUIT. IF

OFF AND ALL LAMPS

HEADLAMP SWITCH

OK, REPLACE THE

ARE TURNED OFF.

RETURN CKT. FIG. 1

BCM.*

YES

KEY ON.

REPAIR THE OPEN

WITH A VOLTMETER,

IS THE VOLTAGE

NO

PANEL LAMPS DIMMER

MEASURE THE PANEL

ABOVE 10.0 VOLTS?

SIGNAL CIRCUIT. IF

LAMPS DIMMER SIGNAL

OK, REPLACE THE

CIRCUIT. FIG. 1

BCM.*

YES

WITH A TEST LIGHT

REPAIR THE PANEL

CONNECTED TO GROUND,

IS THE TEST LIGHT

YES

LAMPS DIMMER SIGNAL

PROBE THE PANEL

ILLUMINATED? CIRCUIT FOR A SHORT

LAMPS DIMMER SIGNAL

TO VOLTAGE. IF OK,

CIRCUIT. FIG. 1

REPLACE THE BCM.*

NO

REPLACE THE

HEADLAMP SWITCH.*

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303

TEST 4A

REPAIRING ALL GAUGES NOT OPERATING PROPERLY

Perform TEST 1A Before Proceeding

FIG. 1

FIG. 2

FIG. 3

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TEST 4A

REPAIRING ALL GAUGES NOT OPERATING PROPERLY

Perform TEST 1A Before Proceeding

*Perform Verification TEST VER-2A.

**Check connectors - Clean / repair as necessary.

CAN YOU

PERFORM

WITH THE DRB,

COMMUNICATE WITH

NO

"VEHICLE

START TEST 4A.

ENTER "BODY

THE BODY CONTROL

COMMUNICATION"

COMPUTER". MODULE?

TEST

1A.

YES

KEY ON.

PERFORM

WITH THE DRB ENTER

CAN YOU

NO

"VEHICLE

"ELECTRO/MECH

COMMUNICATE WITH COMMUNICATION"

CLUSTER (MIC)".

THE MIC? TEST

1A.

YES

KEY OFF.

REFER TO WIRING

REMOVE FUSES 7 AND

IS EITHER FUSE

YES

DIAGRAM IN SERVICE

14 FROM THE

OPEN?

MANUAL SECTION 8W

JUNCTION BLOCK.

TO DIAGNOSES A

FIG. 1

SHORTED CIRCUIT.

NO

DISCONNECT THE

WITH AN OHMMETER,

INSTRUMENT CLUSTER

MEASURE BETWEEN

IS THE RESISTANCE

NO

REPAIR THE OPEN

C1 HARNESS

GROUND AND THE

BELOW 5.0 OHMS?

GROUND CIRCUIT.*

CONNECTOR.** GROUND

CIRCUIT.

FIG. 2

YES

DISCONNECT THE

WITH AN OHMMETER,

INSTRUMENT CLUSTER

MEASURE BETWEEN

IS THE RESISTANCE

NO

REPAIR THE OPEN

C2 HARNESS

GROUND AND THE

BELOW 5.0 OHMS?

GROUND CIRCUIT.*

CONNECTOR.** GROUND

CIRCUIT.

FIG. 3

YES

INSTALL FUSE 7 AND

WITH A VOLTMETER,

14 IN THE JUNCTION

MEASURE THE FUSED

IS THE VOLTAGE

NO

REPAIR THE OPEN

BLOCK.

B(+) CIRCUIT

ABOVE 10.0 VOLTS?

FUSED B(+)

(CAVITY 1).

CIRCUIT.*

FIG. 1

FIG. 2

YES

KEY ON.

REPAIR THE OPEN

WITH A VOLTMETER,

IS THE VOLTAGE

NO

FUSED IGNITION

MEASURE THE FUSED

ABOVE 10.0 VOLTS?

SWITCH OUTPUT

IGNITION SWITCH

CIRCUIT.*

OUTPUT CKT. FIG. 3

YES

REPLACE THE

INSTRUMENT
CLUSTER.*

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