Antitheft System - Vehicle Stall/No Start

NUMBER:
08-14-99

GROUP:
Electrical

DATE:
May 21,1999

SUBJECT:
Vehicle Start And Stall or Vehicle No-Start

MODELS:
1999 - 2000 (JA) Breeze/Cirrus/Stratus
1998 - 2000 (JX) Sebring Convertible
1999 - 2000 (LH) Concorde/Intrepid/LHS/300M
2000 - (PL) Neon
1998 - 2000 (TJ) Wrangler
1999 - 2000 (WJ) Grand Cherokee
1999 - 2000 (XJ) Cherokee

NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A SENTRY KEY IMMOBILIZER SYSTEM (SKIS).

DISCUSSION:

A vehicle start and stall or no-start condition may exist from the interaction between a SKIS key and a Mobil Speedpass(R). This condition occurs during cranking, when the Mobil Speedpass(R) cylinder is held immediately adjacent to the key being used to start the vehicle.

NOTE:
THIS CONDITION DOES NOT OCCUR BY THE MOBIL SPEEDPASS(R) CYLINDER SIMPLY BEING ATTACHED TO THE SAME KEY RING.

If a stall or no-start condition exists due to this problem, the Vehicle Theft Security System (VTSS) indicator light will flash and the vehicle will stall after 2 seconds of running. The Sentry key Immobilizer Module (SKIM) will set either the "Transponder Comm Failure", or a "Transponder CRC Failure" fault code. To diagnosis this condition, remove the Mobil Speedpass(R) from the key ring and attempt to start the vehicle. If the vehicle starts and remains running, SKIS key interaction with the Mobil Speedpass(R) was the cause. This condition will not cause a vehicle to stall after it has been running normally. If a start and stall or no-start condition continues once the Mobil Speedpass(R) is removed, continue with the appropriate diagnostic procedures.

In cases where SKIS key interaction with the Mobil Speedpass(R) is causing the condition, instruct the customer to slightly separate the SKIS key and Mobil Speedpass(R) when starting the vehicle. There are no long-term adverse effects on any of the components once the Mobil Speedpass(R) is removed from the SKIS operating area.


POLICY: Information Only