Ford Focus Intermittent Sensor Activation

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Intermittent Sensor Activation

2016 Ford Focus Estate 1.0L Ecoboost Automatic 49000 miles

Hill Start warning light on/off intermittent
ABS warning light on/off intermittent
Parking Control warning light on/off intermittent
Traction Control warning light on/off intermittent
Stability Control warning light on/off intermittent
Warning lights on/off periodically and go off after a couple of minutes

FrodoPJ from Great Britain a year ago

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Same issue here

3 reports

Best answer (according to FrodoPJ)

FrodoPJ from Great Britain a year ago

Problem solved :) It was low battery charge. After disconnecting and charging the battery, and driving about 5 miles all sensors reset and all warning lights went off and have stated off ever since. Even the stop-start feature works correctly now.

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FrodoPJ from Great Britain a year ago

I thought the problem was solved :( However warning lights as above started going on then off intermittently again this week! Checked Battery, ok at 12.4V, Alternator ok at 14.1v. Two options now before resorting to not cheap diagnostics test:
1. Disconnect Battery - leave ± 1 hr. Reconnect BUT Positive first then Negative (normally Negative first) check results after driving a few days. 2. Remove ECU 30A fuse in Engine Compartment fuse box. Leave out 1 hr for residual warning light data to be deleted. Replace fuse, check results after driving a few days. I'll report back if issues are solved

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FrodoPJ from Great Britain a year ago

Well, bit the bullet, paid for Ford Diagnostic, found faulty wheel sensors lhs, replaced them, problem gon. ALL sensors now reporting correctly.

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