NTB23-048A

DTC P17F4 STORED IN THE TCM IF YOU CONFIRM The customer reports transmission vibration when accelerating, HINT: Vibration occurs during quick reacceleration after braking, during a 2-1 downshift of the auxiliary gearbox. AND DTC P17F4 for “AUXILIARY GEARBOX (CL JUDDER)” is stored in the TCM. · If DTCs other than P17F4 are stored, this bulletin does not apply. Refer to the ESM for further diagnostic information. ACTION Refer to the Repair Overview on page 2 to determine if this bulletin applies. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.