Fault-finding table
- Make
- Alfa Romeo
- Model
- 145/146 Electrical System Diagnosis Manual, Volume 3
- Year
- 1994–2001
- Section
- Heater › Fault-finding table
145 electrical system diagnosisFault-finding table
FAULT-FINDING TABLE
NOTE: air distribution to the passenger compartment and air heating/cooling are controlled mechanically. Therefore for failures such as the lack of heating/ventilation, incorrect air distribution, etc...., see Group 50 "HEATING AND VENTILATION"
| F1 Fault |
Component to be checked | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| F13 | G255 (B) | Q1 | I78 (B) | Q5 | Q4 | Q27 | B98 | F8a (2) | F8b (2) |
| Fan engagement | ● | ● | ● | ● | ● | ||||
| Fan engagement at different speeds | ● | ● | |||||||
| Recirculation function (1) | ● | ● | ● | ||||||
| Control panel lighting | ● | ● | |||||||
(1) only for certain Markets: in other versions this function is controlled mechanically.
(2) it is possible to change individual bulbs with their bulb holder.
(B) only for fusebox "B"
CHECKING COMPONENTS
Heater fan Q1
| F2 SPECIFICATIONS |
|
|---|---|
| Nominal voltage | 12V |
| Speed at 12V/25°C in free air with impeller and support | 3400 +200/-100 rpm |
| Power yielded at 12V/25°C at above-mentioned speed | 110 W |
| Motor direction of rotation | leftwards impeller side |
Parts & tools for this job For 1994 Alfa Romeo 145/146
- TOOLA/C manifold gauge setSearch: AC manifold gauge set
- TOOLUV leak detection kitSearch: AC UV leak detection kit
- PARTCabin filterSearch: Alfa Romeo 145/146 1994 cabin filter
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