GCUS-3-423

15169B - CUSTOMER SATISFACTION PROGRAM (REVISED SERVICE PROCEDURE). VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE VEHICLE ENGINE WILL CRANK BUT NOT START. A REVERSED WIRE IN THE ENGINE EGI HARNESS CAN LEAD TO AN IGNITION SNEAK CIRCUIT, WHICH CAN PREVENT THE ENGINE CONTROL MODULE FROM COMMANDING A SPARK AT START-UP. DURING THE CRANK / NO START EVENT, A MALFUNCTION INDICATOR LAMP WILL BE ILLUMINATED, AND THE VEHICLE WILL STORE THE FOLLOWING CODE: U0100, U1000, AND B2193. DEALERS ARE TO REVISE THE ENGINE EGI HARNESS.