Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
CCDIC Segment Check
The segment check illuminates the Instrument Panel Cluster (IPC) and CCDIC to ensure that all segments of the vacuum flourescent displays are working. The turn signal indicators do not light during this check. If all segments are not illuminated, diagnosis should NOT be attempted, as a misdiagnosis may occur (Code E034 appears as E031, etc.). For testing with Codes procedures, refer to the DFI ECM TESTS/CODES or DFI BCM TESTS/CODES article in this section. If any portions or segments of the CCDIC display are inoperative, it must be replaced before continuing with diagnosis.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.