Chrysler New Yorker. Manual — part 649

TEST SK-1B

SKIM COMMUNICATION

Perform TEST SK-1A Before Proceeding

FIG. 1

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432

TEST SK-1B

SKIM COMMUNICATION

Perform TEST SK-1A Before Proceeding

*Perform Verification TEST VER-1A.

**Check connectors - Clean / repair as necessary.

USING THE DRB, REFER TO

TEST

ATTEMPT TO CAN YOU

NO

NS-6A TO

START TEST.

COMMUNICATE WITH COMMUNICATE WITH

DIAGNOSE

A NO

THE PCM CONTROL

THE PCM? RESPONSE

MODULE.

CONDITION.

YES

TURN IGNITION OFF.

USING AN OHMMETER,

DISCONNECT THE SKIM

MEASURE BETWEEN

IS THE RESISTANCE

NO

REPAIR THE OPEN

MODULE HARNESS

GROUND AND SKIM

BELOW 5.0 OHMS?

GROUND CIRCUIT.*

CONNECTOR.** HARNESS CONNECTOR

SEE GENERAL INFO 4.1

CAVITY 2. FIG.1

YES

USING A VOLTMETER,

MEASURE THE BATTERY

IS THE VOLTAGE

NO

REPAIR THE OPEN

SUPPLY CIRCUIT.

ABOVE 10.0 VOLTS?

BATTERY SUPPLY

CIRCUIT.*

FIG.1

YES

USING A VOLTMETER,

MEASURE THE IGNITION

IS THE VOLTAGE

NO

REPAIR THE OPEN

TURN IGNITION ON.

SUPPLY CIRCUIT.

ABOVE 10.0 VOLTS?

IGNITION SUPPLY

CIRCUIT.*

FIG.1

YES

WAIT 2 MINUTES

MEASURE THE PCI

BEFORE CONTINUING.

BUS CIRCUIT AT THE

DOES THE VOLTAGE

NO

REPAIR THE OPEN

SKIM MODULE

MODULATE ABOVE 0.3

PCI BUS CIRCUIT.*

WITH THE IGNITION

HARNESS CONNECTOR.

VOLTS?

STILL ON...

FIG.1

YES

TURN IGNITION OFF.

KEY ON.

CAN YOU

NO REPLACE THE SKIM

RECONNECT THE SKIM ATTEMPT TO COMMUNICATE WITH

MODULE.*

HARNESS CONNECTOR. COMMUNICATE WITH THE SKIM

MODULE?

THE SKIM MODULE.

YES

TEST COMPLETE.*

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433

TEST SK-2A

REPAIRING - EMS STATUS FAILURE

Perform TEST DTC Before Proceeding

FIG. 1

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434

TEST SK-2A

REPAIRING - EMS STATUS FAILURE

Perform TEST DTC Before Proceeding

*Perform Verification TEST VER-1A.

**Check connectors - Clean / repair as necessary.

START TEST USING THE DRB,

SK-2A. ERASE CODES.

TURN IGNITION OFF.

USING THE DRB,

DOES THE DRB

YES

CONTINUE TEST

WAIT 10 SECONDS.

READ CODES.

DISPLAY THIS CODE?

SK-2A ON THE

TURN IGNITION ON.

NEXT PAGE.

NO

AT THIS TIME THE

USING THE

CONDITION REQUIRED

SCHEMATIC AS A

WERE ANY PROBLEMS

YES

REPAIR AS

TO SET THE CODE IS

GUIDE, INSPECT THE

FOUND?

NECESSARY.*

NOT PRESENT. WIRING

AND

FIG.1

CONNECTORS.

NO

REFER TO GENERAL

INFORMATION 3.3.2

FOR ADDITIONAL TEST

COMPLETE.*

INFORMATION ON

INTERMITTENT CODES.

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435