|  |  | Results of the tests | 
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation | 
|---|
|  | 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 1 | Switch in OFF position | Activate the switch | 
| Switch in ON position | Continue to Step  1 | 
| 1 | CHECKING HEAT PAD POWER SUPPLY | All OK | Problems met | Operation | 
|---|
|  | Check
the heat pad connectors are properly supplied with power  See   E3075  HEATED SEATS | Continue to Step 2 | No supply | Check 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 | 
| 2 | CHECKING SWITCH OPERATION | All OK | Problems met | Operation | 
|---|
|  | Disconnect
the switches and check their efficiency using a Tester | Continue to Step 3 | Switches not working properly | Replace switches  Op.   7045A43 | 
| 3 | CHECKING HEAT PAD POWER SUPPLY | All OK | Problems met | Operation | 
|---|
|  | Remove
the seat trim and check the heat pads are in good condition | Continue to Step 4 | Cushion heat pad damaged | Replace the heat pad  Op.   7045M22 | 
| Squab heat pad damaged | Replace the heat pad  Op.   7045M26 | 
| 4 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present |  | Fault persists | Search for the fault starting from another symptom' |