LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Seat System -- F250-F550 Super Duty) >> Diagnosis And Testing >> Seats >> Pinpoint Tests >> Pinpoint Test K: All Climate Controlled Seats Are Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The Dual Climate Controlled Seat Module (DCSM) is supplied voltage at all times but the climate controlled seat system only operates with the engine running. The system can be operated with the ignition ON by using a scan tool to bypass the climate controlled seat switches on the HVAC module. When commanding a heat or cool mode operation in this manner only operates in 15-second intervals. Both voltage supply circuits are spliced together internal to the DCSM, so if one circuit becomes open, both seats can still be operated. However, if a fault occurs setting a DTC specific to either climate controlled seat, only the affected seat is disabled by the DCSM and the other seat remains operational.

The DCSM receives all control commands over the Controller Area Network (CAN) communication circuits from the HVAC module which contains the climate controlled seat switches. The climate controlled seat system can only operate if both the HVAC module and DCSM are communicating correctly on the CAN circuits.

This pinpoint test is intended to diagnose the following: 

scientia non olet · About LEMON Manuals