Inspection of Diagnostic Trouble Codes (DTC)
WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
DTC 01 - DIAGNOSTIC TROUBLE CODES INSPECTION CHART
| DTC 01 | Seat belt switch on/off signal | ||
|---|---|---|---|
| STEP | INSPECTION | INDICATION | ACTION |
| 1 | Pull the driver's side seat belt. | on | Check the seat belt switch. Check the wiring harness. (Instrument cluster - seat belt switch) |
| oFF | Go to next step. | ||
| 2 | Release the driver's side seat belt. | on | Input signal to instrument cluster is okay. |
| oFF | Check the seat belt switch. Check the wiring harness. (Instrument cluster - seat belt switch) | ||
DTC 04 - DIAGNOSTIC TROUBLE CODES INSPECTION CHART
| DTC 04 | Door switch on/off signal | ||
|---|---|---|---|
| STEP | INSPECTION | INDICATION | ACTION |
| 1 | Open the driver's side door. | on | Close the driver's side door, then go to next step. |
| oFF | Check the door switch. Check the wiring harness. (Instrument cluster - door switch) | ||
| 2 | Open the passenger's side door. | on | Close the passenger's side door, then go to next step. |
| oFF | Check the door switch. Check the wiring harness. (Instrument cluster - door switch) | ||
| 3 | Close all doors. | on | Check the door switch. Check the wiring harness. (Instrument cluster - door switch) |
| oFF | Input signal to instrument cluster is okay. | ||
DTC 08 - DIAGNOSTIC TROUBLE CODES INSPECTION CHART
| DTC 08 | TNS relay on/off signal | ||
|---|---|---|---|
| STEP | INSPECTION | INDICATION | ACTION |
| 1 | Turn the headlight switch to TNS position. | on | Go to next step. |
| oFF | Check the TNS relay. Check the wiring harness. (Battery - TNS relay - instrument cluster) | ||
| 2 | Turn the headlight switch to OFF. | on | Check the TNS relay. Check the wiring harness. (Battery - TNS relay - instrument cluster) |
| oFF | Input signal to instrument cluster is okay. | ||
DTC 14 - DIAGNOSTIC TROUBLE CODES INSPECTION CHART
| DTC 14 | Operation signal to buzzer | ||
|---|---|---|---|
| INSPECTION | INDICATION | SITUATION | ACTION |
| Wait for 2 seconds after selecting DTC 14. | (No indication) | Buzzer continuously sounds. | Buzzer is okay. |
| Buzzer does not continuously sound. | Replace the odometer/tripmeter. | ||
DTC 31 - DIAGNOSTIC TROUBLE CODES INSPECTION CHART
| DTC 31 | Key reminder switch on/off, signal | ||
|---|---|---|---|
| STEP | INSPECTION | INDICATION | ACTION |
| 1 | Insert the key into steering lock. | on | Go to next step. |
| oFF | Check the key reminder switch. Check the wiring harness. (Battery - key reminder switch - instrument cluster) | ||
| 2 | Remove the key from steering lock. | on | Check the key reminder switch. Check the wiring harness. (Battery - key reminder switch - instrument cluster) |
| oFF | Input signal to instrument cluster is okay. | ||