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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 635 (INSTRUMENTATION/DRIVER INFO)INSTRUMENT CLUSTER INPUT/OUTPUT CHECK MODECHECK CODE INSPECTIONCHECK CODE 31
2008 Mazda 6 s Sport, 4D Hatchback, Standard

Check code 31

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Check code 31
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
CHECK CODE 31 INSPECTION

Check code 31 Key reminder switch ON/OFF signal
STEP INSPECTION CONDITION DISPLAY ACTION
1 Remove the key from the steering lock, then reinsert the key into the steering lock after selecting check code 31. (The key reminder switch is on.)
G04564698Courtesy of MAZDA MOTORS CORP.
 Go to the next step.
G04564699Courtesy of MAZDA MOTORS CORP.
 Verify that the voltage of instrument cluster terminal 2W is B+. 
  • If the voltage is as specified, replace the instrument cluster.
  • If the voltage is not as specified, inspect the following parts:
    • Key reminder switch
    • Wiring harness (Battery-key reminder switch- instrument cluster)
2 Remove the key from the steering lock. (The key reminder switch is off.)
G04564700Courtesy of MAZDA MOTORS CORP.
 Verify that the voltage of the instrument cluster terminal 2W is 1.0V or less. 
  • If the voltage is as specified, replace the instrument cluster.
  • If the voltage is not as specified, inspect the following parts:
    • Key reminder switch
    • Wiring harness (Key reminder switch-instrument cluster)
G04564701Courtesy of MAZDA MOTORS CORP.
 Input signal to the instrument cluster is normal.
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:

  • • 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.