Ventilated Seats
Vehicles equipped with the ventilated seat option utilize a low voltage cut-off feature. This feature turns off power to the ventilated seat system anytime vehicle voltage is below 9.0 volts or above 16.0 volts. Be certain to check the vehicle electrical system for proper voltage anytime the ventilated seat system appears inoperative.
If a Diagnostic Trouble Code (DTC) can not be verified, it is a good indication that an INTERMITTENT fault condition may be present. To help find an intermittent problem, sit in the seat in question and move around within the seat while testing continuity. Also wiggle the ventilated seat wire harness and electrical connectors while testing continuity.
For complete circuit diagrams, see Appropriate Wiring Information. Wiring Information includes wiring diagrams, connector pin-out and location views, details of wire harness routing and retention, splice and ground locations.
Before testing any individual components in the ventilated seat system, check the following:
- Check the ignition fuse in the Power Distribution Center (PDC). Repair as necessary.
- Using a scan tool, check for any Diagnostic Trouble Codes (DTCs) related to the Heated Seat Module (HSM) and the U-Connect Touch ™ screen module. If any DTCs are found, repair as necessary.
- Check the vehicles battery open-circuit voltage and charging system performance. If the vehicle's electrical system is defective or weak it may not be suppling sufficient energy to operate the front vented seat system.
- If there are no DTCs and the front vented seat system functions properly, but a vented seat indicator does not illuminate, the entire U-Connect Touch ™ screen module must be replaced.