B2425 0B, B2425 0D or B2425 0E

Ignition OFF, disconnect the harness connector at the E14A Seat Heating Element - Driver Back.
Test for 0.5-2 Ω between control circuit terminal 1 and control circuit terminal 2.
NOTE: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat unoccupied, then with the seat occupied.
- If not between 0.5-2 Ω
  Replace the E14A Seat Heating Element - Driver Back.
- If between 0.5-2 Ω
Connect the harness connector at the E14A Seat Heating Element - Driver Back and disconnect the X2 harness connector at the K29 Seat Heating Control Module.
Test for 1-5 Ω between control circuit terminal 3 and control circuit terminal 1.
NOTE: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat unoccupied, then with the seat occupied.
- If less than 1 Ω
1. Ignition OFF, disconnect the harness connector at the E14B Seat Heating Element - Driver Cushion.
2. Test for infinite resistance between the control circuits.
  - If less than infinite resistance, repair the short between the circuits.
  - If infinite resistance, test or replace the E14B Seat Heating Element - Driver Cushion.
- If greater than 5 Ω
1. Ignition OFF, disconnect the harness connector at the E14B Seat Heating Element - Driver Cushion.
2. Test for less than 2 Ω in each control circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, test or replace the E14B Seat Heating Element - Driver Cushion.
- If between 1-5 Ω
Replace the K29 Seat Heating Control Module.