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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B1AA2, B1AA3, or B272B >> Circuit System Verification

Circuit System Verification

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify the scan tool Seat 2 Cushion Temp parameter is between 0.5-4.73 volts.
    • If not within the specified range, refer to B1AA2 - Seat Cushion Temperature Sensor Test.
  2. Verify the scan tool Seat 2 Back Temp parameter is between 0.5-4.73 volts.
    • If not within the specified range, refer to B1AA3, B272B - Seat Back Temperature Sensor and Blower Test.
  3. If the seat cushion and back temperature parameters displayed correctly on the scan tool, refer to the B1AA3, B272B - Seat Back Temperature Sensor and Blower Test.
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