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.
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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISELECTRICALHORNSINFORMATION CENTER [INSTRUMENTATION/DRIVER INFO]INFORMATION DISPLAY INPUT/OUTPUT CHECK MODECHECK CODE INSPECTION
2010 Mazda 5 Sport, 2.3 L, Standard
Check Code Inspection
2010 Mazda 5 Sport, 2.3 L, StandardSECTION Check Code Inspection
Check code 01
INSPECTION REFERENCE
| Check code 01 | CAN system |
|---|---|
| DISPLAY | ACTION |
| OK | CAN system of information display is normal. |
| U2516 | CAN system communication error. (DTC U2516) (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] .) |
Check code 02
INSPECTION REFERENCE
| Check code 02 |
|
|
|---|---|---|
| DISPLAY | ACTION | |
| 02 OK | Communication to all unit (audio unit, climate control unit, instrument cluster) is normal. | |
| Audio unit | OK ACU | Communication to audio unit is normal. |
| U0184 ACU | Communication error to audio unit. (DTC U0184) (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] .) |
|
| None EATC | Vehicle without audio unit. | |
| Climate control unit | OK EATC | Communication to climate control unit is normal. |
| U0164 EATC | Communication error to climate control unit. (DTC U0164) (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] .) |
|
| None EATC | Vehicle without climate control unit. | |
| Instrument cluster | OK HEC | Communication to instrument cluster is normal. |
| U0181 HEC | Communication error to instrument cluster. (DTC U0181) (See DTC TABLE [MULTIPLEX COMMUNICATION SYSTEM] .) |
|
Check code 04
INSPECTION REFERENCE
| Check code 04 | TNS relay ON/OFF signal | ||
|---|---|---|---|
| STEP | INSPECTION CONDITION | DISPLAY | ACTION |
| 1 | Turn the headlight switch to the TNS position. (TNS relay ON) | ON | Go to the next step. |
| OFF | Verify that the voltage of information display terminal C is B+
.
|
||
| 2 | Turn the headlight switch off. (TNS relay OFF) | ON | Verify that the voltage of the information display terminal C is 1.0 V or less.
|
| OFF | Input signal to the information display is normal. | ||
Check code 09
INSPECTION REFERENCE
| Check code 09 | Clock switch signal | ||
|---|---|---|---|
| STEP | INSPECTION CONDITION | DISPLAY | ACTION |
| 1 | Do not operate the clock switch. | 227 | 255 |
Go to the next step. |
| Except above | Go to Step 5. | ||
| 2 | Press the H switch, and hold. | 070 | 084 |
Go to the next step. |
| Except above | Go to Step 5. | ||
| 3 | Press the M switch, and hold. | 102 | 117 |
Go to the next step. |
| Except above | Go to Step 5. | ||
| 4 | Press the:00 switch, and hold. | 000 | 003 |
Clock switch is normal. |
| Except above | Go to the next step. | ||
| 5 | Inspect the clock switch.
|
||
All segments illuminated
SEGMENTS REFERENCE
| - | LCD | |
|---|---|---|
| DISPLAY | ACTION | |
| All segments and dots illuminated. | LCD is normal. | |
| Except above | Replace the information display. | |
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.