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 MANUALSMAZDA2013MX-5 MIATA GRAND TOURING, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXPOWER RETRACTABLE HARDTOP DTCS
2013 Mazda MX-5 Miata Grand Touring, Automatic Trans
Power Retractable Hardtop DTCS
2013 Mazda MX-5 Miata Grand Touring, Automatic TransSECTION Power Retractable Hardtop DTCS
POWER RETRACTABLE HARDTOP DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B1317 | Battery power supply voltage increases (17.5 V or more) | (See DTC B1317/B1318 [POWER RETRACTABLE HARDTOP] ) |
| B1318 | Battery power supply voltage decreases (less than 7.5 V) | |
| B1342 | Power retractable hardtop control module internal malfunction | (See DTC B1342 [POWER RETRACTABLE HARDTOP] ) |
| B293B | Deck panel motor pulse signal error (LH) | (See DTC B296A/B294B/B293C/B293B [POWER RETRACTABLE HARDTOP] ) |
| B293C | Deck panel motor pulse signal error (RH) | |
| B293D | Roof motor circuit malfunction (LH) | (See DTC B293E/B293D/B294C/B293F [POWER RETRACTABLE HARDTOP] ) |
| B293E | Roof motor circuit malfunction (RH) | |
| B293F | Deck panel motor circuit malfunction (LH) | |
| B294B | Roof motor pulse signal error (LH) | (See DTC B296A/B294B/B293C/B293B [POWER RETRACTABLE HARDTOP] ) |
| B294C | Deck panel motor circuit malfunction (RH) | (See DTC B293E/B293D/B294C/B293F [POWER RETRACTABLE HARDTOP] ) |
| B294D | Roof motor opening angle does not match (Pulse count number do not match) | (See DTC B294D/B294E [POWER RETRACTABLE HARDTOP] ) |
| B294E | Deck panel motor opening angle does not match (Pulse count number do not match) | |
| B294F | Power retractable hardtop/deck panel limit switch malfunction | (See DTC B294F [POWER RETRACTABLE HARDTOP] ) |
| B296A | Roof motor pulse signal error (RH) | (See DTC B296A/B294B/B293C/B293B [POWER RETRACTABLE HARDTOP] ) |
| B296B | Top lock switch malfunction | (See DTC B296B [POWER RETRACTABLE HARDTOP] ) |
| B296C | Power retractable hardtop switch malfunction | (See DTC B296C [POWER RETRACTABLE HARDTOP] ) |
| B296D | Hall sensor low power supply voltage | (See DTC B296D [POWER RETRACTABLE HARDTOP] ) |
| U0073 | CAN system communication error | (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM] ) |
| U0030 | Power window communication error (during power retractable hardtop operation) | |
| U0031 | Power window communication error (during power retractable hardtop not operation) | |
| U0100 | Communication error to PCM | |
| U0101 | Communication error to TCM | |
| U2197 | Vehicle speed signal communication error |
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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.