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