P0817moderate severityPowertrain
Starter Disable Circuit
on 2015 Ford F-150 3.5L V6 EcoBoost · RWD
What this code means
The PCM detected a fault in the starter disable circuit, which prevents cranking under certain conditions. A malfunction may allow or block engine cranking incorrectly.
Symptoms
- No-start condition
- Starter engages when it shouldn't
- Warning light on
Common causes
- Faulty starter relay
- Damaged wiring or connector
- Faulty neutral safety switch
- Faulty PCM
Diagnostic steps
- Scan for related codes
- Test starter disable relay
- Inspect wiring and connectors
- Verify PCM control signal
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0005
Fuel Shutoff Valve A Control Circuit/Open