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 MANUALSHYUNDAI2013EQUUS ULTIMATEREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTDRIVER INFORMATION SYSTEM (DIS) - TUNER/AMPLIFIER DIAGNOSIS
2013 Hyundai Equus Ultimate
Driver Information System (Dis) - Tuner/Amplifier Diagnosis
2013 Hyundai Equus UltimateSECTION Driver Information System (Dis) - Tuner/Amplifier Diagnosis
- Diagnostic Trouble Codes Index
- DTC U1000: Amplifier Unit Error
- DTC U1001: HW Watchdog Executed
- DTC U1004: Temperature Sensor Signal Error in Tunner and Amplifier
- DTC U1010: Low Voltage Detected
- DTC U1011: High Voltage Detected
- DTC U1138: Fan Operation Error (Fan is running although should be off)
- DTC U1139: Fan Operation Error no plug put or line open Fan is not running although it should be on
- DTC U1501: MOST network detects 'critical unlock'
- DTC U1700: DTCP Sink SW error
- DTC U1702: DTCP Sink Decode error
- DTC U1710: Amplifier stage group 1 Error - S/Woofer 1 (+), 1 (-) short circuit
- DTC U1711: Amplifier stage group 3 Error - S/Woofer 2 (+), 2 (-) short circuit
- DTC U1712: Amplifier stage group 3 Error_Front Middle/Tweeter LH_RH short circuit
- DTC U1713: Amplifier stage group 4 Error DECK LH, DECK RH, Center Speaker short circuit
- DTC U1714: Amplifier stage group 5 Error - Front LH & RH short circuit
- DTC U1940: AmFm Antenna circuit Low (shortcut to GND)
- DTC U1941: AmFm Antenna circuit Open (not connected)
- DTC U1942: Fm2 Antenna circuit Low
- DTC U1943: Fm2 Antenna circuit Open
- DTC U1944: XM Antenna circuit Low (UTA US only)
- DTC U1945: XM Antenna circuit Open (UTA US only)
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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.