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.
Check Communication Circuit Of Fuel Economy System
- CHECK FUEL ECONOMY DISPLAY OFF MODE
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Check that the mode display changes when the MFD (INFO) switch is operated. (Display changes in the following order: cruising distance → average fuel economy → instantaneous fuel economy → continuous driving time → average vehicle speed → blank display)
Is fuel economy displayed?
Yes: MFD is normal.
No: Go to 2.
- CHECK MFD
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- Remove the MFD.
- Attach the fuel economy display to another vehicle on which the fuel economy display operates normally to check its operation.
Is the fuel economy display correct?
Yes: Replace the meter - main assembly. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER .
No: Replace MFD.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.