Troubleshooting (page 2 of 2)
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Troubleshooting
Electrical 22A – Front power windows (one-touch version)Troubleshooting · page 2 of 2
| FRONT RIGHT-HAND POWER WINDOW NOT WORKING | |||
|---|---|---|---|
| TEST PROCEDURE | RESULT | CORRECTIVE ACTION | |
| B1 | CHECK FUSE | OK NOT OK | Carry out step B2 Replace fuse (25A) |
| - Check for damage of wander fuse G310 | |||
| B2 CHECK VOLTAGE - With ignition key engaged and activating switch B21a in one of the two directions, verify 12 V between pins 1 and 2 of switch B21a | OK | Carry out step B3 | |
| NOT OK | Carry out step B4 | ||
| B3 CHECK MOTOR - With ignition key engaged and activating switch B21a in one of the two directions, verify 12 V between pins A and B of motor P14 | OK | Replace motor P14 | |
| NOT OK | Restore wiring between: - pin 1 of B21a and pin A of P14 (WHI-RED) - pin 2 of B21a and pin B of P14 (PPL WHT) | ||
| B4 CHECK VOLTAGE - With ignition key engaged, verify 12 V between pin 3 and 4 of switch B21a, and between pin 5 and 4 of the same switch | OK | Replace switch B21a | |
| NOT OK | Carry out step B5 | ||
| B5 CHECK GROUND - Check that pin 4 of B21a is grounded (0V) | OK | Carry out step B6 | |
| NOT OK | Restore wiring between pin 4 of B21a and ground G148b, across pin B4 of connector G21 (BLK) | ||
| B6 CHECK VOLTAGE - With ignition key engaged and activating switch B21b in one of the two directions, verify 12 V between pins 1 and 2 of switch B21b | OK | Restore wiring between: - pin 1 of B21b and pin 3 of B21a, across pin C1 of connector G23 and pin B1 of connector G21 (GRN-BLK) - pin 2 of B21b and pin 5 of B21a, across pin C2 of connector G23 and pin B2 of connector G21 (LBL) | |
| NOT OK | Carry out step B7 | ||
| B7 CHECK VOLTAGE - With ignition key engaged, verify 12 V between pin 3 and 4 of switch B21b, and between pin 5 and 4 of the same switch | OK | Replace switch B21b | |
| NOT OK | Carry out step B8 | ||
| B8 CHECK GROUND - Check that pin 4 of B21b is grounded (0V) | OK | Restore wiring between: - pin 3 of B21b and fuse G310, across pin C3 of connector G23 (RED) - pin 5 of B21b and pin 3 of B21a (RED) | |
| NOT OK | Restore wiring between pin 4 of B21b and ground G148b, across pin C4 of connector G23 (BLK) | ||
Parts & tools for this job For 1992 Alfa Romeo 155
- TOOLDigital multimeterSearch: automotive digital multimeter
- PARTAssorted fuse kitSearch: car fuse assortment kit
- TOOLWire crimper and connector kitSearch: wire crimper connector kit
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