Front seat heating not working
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Seats › Front seat heating not working
Fault diagnosisFront seat heating not working
FRONT SEAT HEATING NOT WORKING
The seat cushion and front backrest heater pad is not working / not working properly.
| 1 | SEAT CONNECTION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
| Check the connection between the seat connection and the floor connection | Move on to Step 2 | Heater pad supply connector detached from the connection on the vehicle floor. | Fit the seat heater pad connector correctly with the vehicle floor connector. | |
| 2 | HEATER PAD WIRING CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check for any breaks/tears in the heater pad wiring | Move on to Step 3 | 1. Presence of cuts/tears in the heater pad supply leads. | 1. Replacement of cushion heater pad | |
| 2. Backrest heater pad resistance broken. | 2. Replacement of backrest heater pad Op. 7045M26 L/H OR R/H FRONT SEAT SQUAB HEAT PAD - R+R FOLLOWING ELECTRICAL WIRING CHECK | |||
| 3 | CHECK ON CONDITION OF HEATER PAD ON SWITCH | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check the condition/operation of the heater pad on switch and temperature adjustment (3 positions). | Move on to Step 4 | Switch rockers broken, temperature position switch broken, oxidation of button/switch contacts. | Replacement of heater pad on button/position switch Op. 7045M10 FRONT SEAT HEATING SYSTEM SWITCH, LEFT OR RIGHT - R+R | |
| 4 | CHECK ON ATTACHMENT OF HEATER PAD CONNECTION WITH TEMPERATURE ADJUSTMENT CONTROL UNIT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the heater pad connection is correctly attached to the temperature adjustment control unit. | Move on to Step 5 | Heater pad wiring connector detached from adjustment control unit. | Fit the heater pad wiring connector correctly in the control unit. | |
| 5 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present. | End of diagnosis | The fault persists. | Replace the heater pad control unit Op. 7045M32 ELECTRONIC THERMOSTAT FOR HEATING CIRCUIT OF ONE FRONT SEAT, LH OR RH R R |
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