B0980
Ignition Switch Run/Start Position Circuit
The body control module reports an implausible signal from the ignition switch run/start position circuit.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: medium
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
Ordered by how often each turns out to be the cause.
- Worn ignition switch contactsCommon
- Open wire from switch to BCMPossible
Parts involved
- Ignition Switch
- Body Control Module
B0980 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.