Powertrain
generic / SAE
P0817
Starter Disable Circuit/Open
The starter-disable circuit (used by transmission, immobiliser or anti-theft to block cranking unless safety conditions are met — e.g. clutch pedal pressed on manual, brake pedal on auto) is open. The starter cannot be disabled, weakening the safety chain.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 17
Possible causes
- Open disable wire high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 60–300 €
- Estimated time: 0.3–1.5 h
- Component: starter disable circuit
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012