Check code 25

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Check code 25
WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
CHECK CODE 25 DIAGNOSTIC PROCEDURES

Check code 25 Water temperature gauge operation signal
INSPECTION CONDITION DISPLAY ACTION
After selecting check code 25, wait approx. 2s. oo The water temperature gauge indicates status in the following order approx. every
  • H --> Center --> C --> H (fixed)
The water temperature gauge is normal.
Except above Replace the instrument cluster.
Err Replace the instrument cluster.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.