Front seat heating not working
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Seats › Front seat heating not working
Fault diagnosisFront seat heating not working
FRONT SEAT HEATING NOT WORKING
With panel on, seat heat pads do not work.
| 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' | ||
Parts & tools for this job For 2000 Alfa Romeo 147
- TOOLA/C manifold gauge setSearch: AC manifold gauge set
- TOOLUV leak detection kitSearch: AC UV leak detection kit
- PARTCabin filterSearch: Alfa Romeo 147 2000 cabin filter
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