B03 The starter motor does not work
- Make
- Fiat
- Model
- Seicento Factory Service Manual
- Year
- 1998–2010
- Section
- Starting › B03 The starter motor does not work
DiagnosisB03 The starter motor does not work · page 1 of 5
B03 The starter motor does not work
When the vehicle is stationary, the gear in neutral and the key is turned to MAR, the instruments light up but the starter motor does not work.
First check:
– fuse B35, B50 and B52 intactness (wiring diagram: E7040 “ELECTRONIC CLUTCH”
NOTE: When the key is turned to MAR, relay J81 should be triggered. When the key is turned to STOP the relay should be triggered after a few seconds delay.
| Step | Validity | Operation to be performed | Test results | ||
|---|---|---|---|---|---|
| OK | |||||
| 1 | CHECK ECU M85 OPERATION | All OK | Problems found | Intervention | |
| Remove connector M85 and turn the key to MAR. Connect a digital multimeter (set to read Volts) as follows: – red probe to connector M85 pin 28 – black probe to earth Check presence of battery voltage |
Perform the next check | If no battery voltage is found, there is no continuity in the power wire. | Check and, if required, restore battery power circuit. (wiring diagram: E7040 “ELECTRONIC CLUTCH” and ECU pin-out: DESCRIPTION AND OPERATION 1820) | ||
| Connect a digital multimeter (set to read Volts) as follows: – red probe to connector M85 pin 54 – black probe to earth Check presence of battery voltage |
Go to Step 2 | If not battery voltage is found, there is no continuity in the ignition switch power line. | Check and, if required, restore ignition switch power circuit. (wiring diagram: E7040 “ELECTRONIC CLUTCH”) | ||
(Cont..)
Parts & tools for this job For 1998 Fiat Seicento
- TOOLBattery testerSearch: car battery tester
- TOOLDigital multimeterSearch: automotive digital multimeter
- TOOLBattery terminal cleanerSearch: battery terminal cleaner
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