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 MANUALSSUZUKI2013SX4 CROSSOVER, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEGLASS/WINDOWS/MIRRORSDIAGNOSTIC INFORMATION AND PROCEDURESDOOR MIRROR HEATER SYMPTOM DIAGNOSIS (IF EQUIPPED)
2013 Suzuki SX4 Crossover, Automatic CVT Trans
Door Mirror Heater Symptom Diagnosis (If Equipped)
2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION Door Mirror Heater Symptom Diagnosis (If Equipped)
NOTE:
- Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or output side of BCM. For checking procedure, refer to "DIAGNOSIS USING OUTPUT TEST FUNCTION OF SUZUKI SCAN TOOL " under Scan Tool Data.
- Check each part in the order from the top of the following list.
DOOR MIRROR HEATER SYMPTOM DIAGNOSIS
| Condition | Possible Cause | Action |
|---|---|---|
| All door mirror heaters does not operate | Circuit fuse blown | Replace fuse and check for short circuit . |
| Rear end door window/back window defogger switch faulty | Check rear end door window/back window defogger switch referring to REAR END DOOR WINDOW/BACK WINDOW DEFOGGER SWITCH INSPECTION . | |
| Rear end door window/back window defogger relay faulty | Check rear end door window/back window defogger relay referring to REAR END DOOR WINDOW/BACK WINDOW DEFOGGER RELAY INSPECTION . | |
| Wiring or grounding faulty | Repair wiring . | |
| BCM faulty | Replace after making sure that none of above parts is faulty . | |
| Only one door mirror heater does not operate | Door mirror heater faulty | Check door mirror heater refiring to DOOR MIRROR HEATER INSPECTION (IF EQUIPPED) . |
| Wiring or grounding faulty | Repair wiring . |
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.