3022700 - O20 FRONT SEAT HEATING NOT WORKING

With panel on, seat heat pads do not work.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Check whether the heat pads have been deactivated by means of the switches at either side of the seats.
Device operation is automatically shut off at a certain temperature by a thermal contact located inside the device
Continue to Step 1Switch in OFF positionActivate the switch
Switch in ON positionContinue to Step 1
1CHECKING HEAT PAD POWER SUPPLYAll OKProblems metOperation
Check the heat pad connectors are properly supplied with power See   E3075  HEATED SEATS Continue to Step 2No supplyCheck the condition of the specific facia junction unit fuse, and the continuity of leads from the control unit to the heat pads: See   E3075  HEATED SEATS
2CHECKING SWITCH OPERATIONAll OKProblems metOperation
Disconnect the switches and check their efficiency using a TesterContinue to Step 3Switches not working properlyReplace switches Op.   7045A43 
3CHECKING HEAT PAD POWER SUPPLYAll OKProblems metOperation
Remove the seat trim and check the heat pads are in good conditionContinue to Step 4Cushion heat pad damagedReplace the heat pad Op.   7045M22 
Squab heat pad damagedReplace the heat pad Op.   7045M26 
4CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'