Chrysler New Yorker. Manual — part 648
TEST SK
IDENTIFYING SKIM PROBLEMS
NOTES
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TEST SK-1A
IDENTIFYING SENTRY KEY IMMOBILIZER SYSTEM PROBLEMS
NOTE: The Sentry Key Immobilizer System (SKIS) diagnosis may require usage of the customer’s
additional keys to verify the cause of the system failure. In the event that the Sentry Key Immobilizer
Module (SKIM) needs replacing, all of the keys previously programmed into the SKIM’s memory
must be programmed into the new SKIM. THEREFORE IT IS IMPORTANT THAT ALL OF THE
CUSTOMER’S KEYS PROGRAMMED FOR THE VEHICLE BE OBTAINED PRIOR TO BEGIN-
NING VEHICLE DIAGNOSIS.
NOTE: It is necessary to obtain the four-digit Personal Identification Number (PIN) from the
customer or the vehicle invoice. The PIN is required to perform certain SKIM tasks using the DRB.
NOTE: It is very important that the PCM is programmed with the correct Vehicle Identification
Number (VIN). Incorrect VIN programming may result in incorrect diagnosis and unnecessary
component replacement. Use the DRB to verify the correct VIN and country code in the SKIM.
1. The battery must be fully charged for any test in this manual.
2. Attempt to start the engine. Crank for up to 10 seconds if necessary.
3. Connect the DRB to the diagnostic connector and select “Theft Alarm” then “SKIM”. If the DRB
displays “No Response”. . . . . . . . . . . . . . . . . . . . . ..perform test 1B.
NOTE: If the DRB screen is blank or has a DRB error message displayed, go to General
Information Section 3.5 in this manual.
4. With the DRB, read and record SKIM trouble codes.
5. If diagnostic trouble code(s) are displayed, refer to the diagnostic trouble code list on the next
page for the appropriate test.
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TEST SK-1A
IDENTIFYING SENTRY KEY IMMOBILIZER SYSTEM PROBLEMS
DIAGNOSTIC TROUBLE CODE (DTC) DISPLAYED
DIAGNOSTIC TEST
ANTENNA FAILURE
**
COP FAILURE
**
EEPROM FAILURE
**
EMS STATUS FAILURE
SK-2A
INTERNAL FAULT
**
RAM FAILURE
**
ROLLING CODE FAILURE
SK-3A
SERIAL LINK EXTERNAL FAULT
SK-4A
SERIAL LINK INTERNAL
**
STACK OVERFLOW FAILURE
**
TRANSPONDER COMMUNICATION FAILURE
SK-5A
TRANSPONDER CRC (CYCLIC REDUNDANCY
CHECK) FAILURE
SK-6A
TRANSPONDER ID MISMATCH
SK-7A
TRANSPONDER RESPONSE MISMATCH
SK-8A
VIN MISMATCH
SK-9A
** These trouble codes indicate an internal SKIM fault. Using the DRB, clear SKIM trouble code(s).
Perform several key cycles, leaving the key on for a minimum of 30 seconds per cycle. Using the
DRB, read SKIM trouble codes. If the trouble code is present, replace the SKIM.
NOTE: An intermittent start and stall condition accompanied with a transponder DTC can be caused
by the presence of a non-programmed key or key programmed to another vehicle, near the SKIM
antenna (ignition halo). This can occur if the customer has a key holder (ring) that contains more
than one key equipped with a transponder chip.
After replacement of the Sentry Key Immobilizer Module (SKIM) see GENERAL INFORMATION
SECTION 8.0 for SKIM initialization.
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TEST SK-1A
IDENTIFYING SENTRY KEY IMMOBILIZER SYSTEM PROBLEMS
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