Q: Is it safe to drive with C0099 active?

Check for other symptoms. If warning light is on, get diagnosed soon.

Q: How much does it cost to fix C0099?

Repair costs typically range $Varies by component. DIY diagnosis with a multimeter can save on labor.

Q: Will the warning light go off on its own?

If the fault is intermittent, the light may turn off after several drive cycles. However, the underlying issue should still be addressed. ---

This diagnostic article is an original guide created by AIscanAuto for educational and troubleshooting purposes. The technical information about OBD2 DTC codes is based on publicly available automotive diagnostic standards and industry best practices. External links provided are for additional reading and context only — they do not imply endorsement or ownership of third-party content. All repair procedures should be performed by qualified technicians.

Pricing — subscription tiers:

Free — 0.00 USD
Lite — 5.00 USD / 30 days
Basic — 10.00 USD / 30 days
Pro — 20.00 USD / 30 days

DTC C0099: C0099 — Manufacturer Controlled DTC: Causes, Symptoms & Fix

Home
Pricing
FAQ
Download
Blog
DTC Codes
Contacts
Terms
Privacy

P0420
P0430
P0300
P0171
P0172
P0442
P0455
P0128
P0301
P0135