Measures the voltage between the front axle feed circuit and ground. Tests the front axle switch circuit for an open or high resistance. Helps determine if the transfer case shift control module is able to monitor the front axle switch. Tests the operation of the front axle control circuit. Tests for proper power and ground at the front axle actuator. Helps determine between mechanical and electrical malfunctions. Tests the electrical function of the front axle actuator. The numbers below refer to the step numbers on the diagnostic table. Whenever a shift to AUTO 4WD, 4HI, or 4LO is requested, the transfer case shift control module engages the front axle by grounding the front axle control circuit through a current limiting driver. The front axle actuator has four circuits connected to it, a front axle feed circuit, front axle ground circuit, front axle control circuit and a front axle switch circuit. The front axle actuator motor consists of a Permanent Magnetic (PM) motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit all within the actuator assembly. The front axle control circuit consists of an electric motor actuator which engages and disengages the front axle. ![]() If there are problems with electronic part of the systems the shift control switch light will flash warning of a problem, If no lights you have a mechanical problem in the transfer case itself. Once the new mode/gear position is fully active, the switch indicator lamp for the new position will remain ON constantly. The lamp will continue to flash until all shifting criteria has been met and the new mode/gear position has been reached, or has been engaged. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/gear position. When the vehicle has the ignition key in the RUN position, the transfer case shift control module starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/gear position. The NVG 236/246 transfer case features a 4 button shift control switch located on the instrument panel. The NVG 263 transfer case provides the driver with 3 manual mode/gear positions: Your vehicle had option of two different 4x4 systems , The lamp will continue to flash until all shifting criteria has been met and the new mode/gear position has been reached (or has been engaged). The NVG 263 transfer case features a three button shift control switch located on the instrument panel. New Venture Gear 263 Selectable Two Speed Transfer Case ![]() you really shouldn't be trying anything, take it to a qualified repair shop. Without a professional scan tool an factory service repair info. This DTC detects a shorted actuator, or a short to 12 V on the Front Axle Control Circuit. Whenever a shift to AUTO 4WD, 4HI, or 4LO is requested, the automatic transfer case control module engages the front axle by grounding the front axle control circuit through a current limiting driver. The front axle actuator has four circuits connected to it, a front axle feed circuit, front axle ground circuit, front axle control circuit, and a front axle switch circuit. The front axle actuator's motor consists of a Permanent Magnetic (PM) motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit all within the actuator assembly. Which transfer case does it have ? How many buttons on the instrument panel 4X4 switch ? Did you check to see if any DTC'S - diagnostic trouble code's are stored in the transfercase control module. ![]() ![]() Your best bet, take it to a qualified repair shop, before you replace more part's that arn't needed.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |