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B221A-HEATED SEAT MODULE INTERNAL For a complete wiring diagram Refer to Section 8W. • When Monitored:Ignition on. • Set Condition:This code is set immediately if the Heated Seat Module internal self test fails. Possible Causes HEATED SEAT MODULE Diagnostic Test 1. VERIFY THAT DTC B221A-HEATED SEAT MODULE INTERNAL IS ACTIVE With the scan tool, record and erase DTC’s Cycle the ignition switch off then back on. With the scan tool, read DTC’s. Does the DTC B221A-HEATED SEAT MODULE INTERNAL reset? Yes >> Replace the Heated Seat Module. Perform BODY VERIFICATION TEST – VER 1. (Refer to No >> The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, Perform BODY VERIFICATION TEST – VER 1. (Refer to 8G - 66 HEATED SEATS - ELECTRICAL DIAGNOSTICS LX |