20-ST-001H
Service Bulletin Details
Public Details for: 20-ST-001H
This bulletin provides information regarding replacement of the column-mounted motor driven power steering (mdps) system as separate components.
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Models from 2020
| 2020 HYUNDAI ACCENT |
| 2020 HYUNDAI ELANTRA |
| 2020 HYUNDAI ELANTRA GT |
| 2020 HYUNDAI KONA |
| 2020 HYUNDAI PALISADE |
| 2020 HYUNDAI SANTA FE |
| 2020 HYUNDAI SONATA |
| 2020 HYUNDAI TUCSON |
| 2020 HYUNDAI VELOSTER |
Models from 2019
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Models from 2014
Models from 2013
Models from 2012
| 2012 HYUNDAI ACCENT |
| 2012 HYUNDAI AZERA |
| 2012 HYUNDAI ELANTRA |
| 2012 HYUNDAI SONATA |
| 2012 HYUNDAI SONATA HYBRID |
| 2012 HYUNDAI TUCSON |
Models from 2011
| 2011 HYUNDAI ELANTRA |
| 2011 HYUNDAI SONATA |
| 2011 HYUNDAI SONATA HYBRID |
| 2011 HYUNDAI TUCSON |
Models from 2010
| 2010 HYUNDAI TUCSON |
GROUP STEERING Technical Service Bulletin SUBJECT: DATE JANUARY, 2020 NUMBER 20-ST-001H MODEL(S) See Below COLUMN-MOUNTED MDPS REPAIR INFORMATION THIS TSB SUPERSEDES 19-ST-001H TO INCLUDE NEW MODELS AND COLUMN & HOUSING ASSY NOISE REPAIR RECOMMENDATION. Description: This bulletin provides information regarding replacement of the column-mounted Motor Driven Power Steering (MDPS) system as separate components. Applicable Vehicles: Accent (RB/HC), Azera (HG), Elantra (MD/UD/AD), Elantra Coupe (JK), Elantra GT (GD/PD), Ioniq Hybrid/Plug-In/Electric Vehicle (AE HEV/AE PHEV/AE EV), Kona (OS), Kona EV (OS EV), Palisade (LX2), Santa Fe (TMA), Santa Fe/XL (NC), Santa Fe Sport (AN), Sonata (YF/LF), Sonata Hybrid/Plug-In (YF HEV/ LF HEV/LF PHEV), Tucson (LM/TL), Tucson Fuel Cell (LM FCEV), Veloster (FS/JS) NOTICE Refer to the applicable model shop manual for the detailed diagnostic and repair service procedures. Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service Advisors, Technicians, Body Shop Manager, Fleet Repair SUBJECT: MDPS MOTOR AND ECU REPLACEMENT INFORMATION Parts Information: Partial Parts of MDPS System 1 2 4 6 3 5 1. Column & Shaft Assembly (MDPS full assembly) 2. Column & Housing Assembly 3. MDPS Motor 4. MDPS ECU 5. Universal Joint Assembly 6. Electric Power Pack (MDPS Motor and MDPS ECU assembly. Applicable to Palisade (LX2) and Santa Fe (TMa). NOTICE Refer to the applicable parts catalog for specific application part numbers. Grease for Mando Systems Remarks For Mando MDPS vehicles below: Santa Fe Sport (AN) Accent (RB/HC) Tucson (LM/TL) Tucson Fuel Cell (LM FCEV) The proper amount of grease is equivalent to a 50mm bead. *Each tube of grease can be used on approximately 15 vehicles. Part Number: YSBB0-91105-FFF TSB #: 20-ST-001H Page 2 of 6 SUBJECT: SUBJECT: MDPS MOTOR AND ECU REPLACEMENT INFORMATION Warranty Information: MODEL OP CODE OPERATION OP TIME CAUSAL NATURE CAUSE PART CODE CODE Accent (RB/HC) Azera (HG) Elantra (MD/UD/AD) Elantra Coupe (JK) Elantra GT (GD/PD) Ioniq (AE HEV/PHEV/EV) Kona (OS/OS EV) Santa Fe / XL (NC) MDPS (EPS) 56330R00 Santa Fe Sport (AN) Motor Sonata (YF/LF) Sonata Hybrid (YF HEV/LF HEV/LF PHEV) Tucson (LM/TL) Tucson Fuel Cell (LM FCEV) Veloster (FS/JS) Please see WEB LTS for current LTS time 56330* I11 ZZ3 Accent (RB/HC) Elantra (MD/UD/AD) Elantra Coupe (JK) Elantra GT (GD/PD) Ioniq (AE HEV/PHEV/EV) Kona (OS/OS EV) Santa Fe / XL (NC) Santa Fe Sport (AN) 56345R00 Sonata (YF/LF) Sonata Hybrid (YF HEV/LF HEV/LF PHEV) Tucson (TL) Tucson Fuel Cell (LM FCEV) Veloster (FS/JS) MDPS-ECU Assy Please see WEB LTS for current LTS time 56340* I11 ZZ3 MDPS-ECU Assy Please see WEB LTS for current LTS time 56345* I11 ZZ3 I11 ZZ3 Azera (HG) Tucson (LM) 56345R00 Please see Palisade (LX2) WEB LTS for 56370R00 56370* Santa Fe (TMa) current LTS time NOTE: Dealers may claim $0.10 on sublet for reimbursement of grease. * Refer to applicable parts catalog for full causal part numbers. Electronic Power Pack Assy TSB #: 20-ST-001H Page 3 of 6 SUBJECT: SUBJECT: MDPS MOTOR AND ECU REPLACEMENT INFORMATION MODEL OP CODE OPERATION OP TIME Accent (RB/HC) Steering Azera (HG) Column Shaft 56300R0S Elantra (MD/UD/AD) Assembly Elantra Coupe (JK) (MDPS) Elantra GT (GD/PD) Steering Ioniq (AE HEV/PHEV/EV) Column & Kona (OS/OS EV) 56390R00 Housing Assy Palisade (LX2) Please see (C-MDPS) Santa Fe (TMa) WEB LTS for Santa Fe / XL (NC) current LTS Santa Fe Sport (AN) time Sonata (YF/LF) Joint And/Or Sonata Hybrid (YF HEV/LF Coupling HEV/LF PHEV) 56400R00 AssyTucson (LM/TL) Universal Tucson Fuel Cell (LM FCEV) Veloster (FS/JS) CAUSAL NATURE CAUSE PART CODE CODE 56310* 56390* I11 ZZ3 56400* NOTE: Dealers may claim $0.10 on sublet for reimbursement of grease. * Refer to applicable parts catalog for full causal part numbers. Service Procedure: NOTICE MDPS Repair Flowchart is meant to be used as reference guide only. See MDPS DTC table for more details. It is recommended to replace the column & housing assembly, o In cases of no DTC(s) with symptoms of binding/sticking steering feel. o Noise diagnosed to be coming from column & housing assembly. Refer to the shop manual for other common MDPS noise repairs. If an MDPS component is replaced, but the concern is not resolved, please contact the Hyundai Technical Assistance Hotline at 1-800-325-6604 for further assistance. Note that some DTCs may be found in systems other than EPS (electric power steering) in GDS. They may be found in the Brake/ABS/ESC system. Check all systems for DTCs. Always refer to the applicable model shop manual for detailed information regarding DTC diagnosis and component replacement procedures. TSB #: 20-ST-001H Page 4 of 6 SUBJECT: SUBJECT: MDPS MOTOR AND ECU REPLACEMENT INFORMATION MDPS Repair Flowchart Vehicle in dealer for MDPS-related complaint. Noise – Refer to shop manual for common MDPS noise repairs. Warning Lamp Illuminated – DTC(s) present / CAN Line Error No DTC(s), Sticking / Binding – Replace column & housing assy. Scraping/growling noise when turning steering wheel – Replace column & housing assy. 1. Check MDPS connectors and wiring. 2. Erase DTC(s) and re-check. 3. If DTC(s) still present, follow these recommended repairs. ECU-Related C1112 C1604 C1623 C1687 C1688 C1704 C1705 C2412 C2413 Replace the MDPS ECU (or MDPS Power Pack Assy). Motor-Related C2400 C2401 Replace the MDPS motor (or MDPS Power Pack Assy). Column & HousingRelated C1259 C1290 Replace the column & housing assy. Connectors / Wiring Related C1260, C1261, C1611, C1612, C1616, C1622, C1628, C1646, C1656, C1692, C1693, C1696, C1697 Check DTC(s) and Wiring at HECU / MDPS / EMS • Check connectors for poor connection. • Check for connector corrosion. • Check for connector damage or deformation. • Check the DTC Diagnostic Guide on HyundaiTechInfo.com NOTICE For cases with multiple DTCs: o If the DTCs relate to more than a single MDPS component, it is recommended to replace the full MDPS assembly (56310). o If the DTCs relate only to a single MDPS component, it is recommended to replace only the suspect component. DTCs shown are based on the 5-digit DTC system. For vehicles showing 7-digit DTCs, refer to the DTC that matches only the first 5-digits. TSB #: 20-ST-001H Page 5 of 6 SUBJECT: SUBJECT: MDPS MOTOR AND ECU REPLACEMENT INFORMATION MDPS DTC Table DTC Issue First Inspection Method C1102 Battery voltage problem C1603 MDPS thermal protection C1611 C1616 CAN time out EMS CAN BUS OFF C1622 Vehicle speed signal error Check battery voltage condition. Investigate driving conditions DTC is set. This DTC protects motor from overheating. 1. Check GDS condition. 2. Check wiring and connector condition. 3. Check ECU CAN line. 4. Check MDPS ground. Check SPAS and associated wiring. Check TCU and associated wiring. Check instrument cluster and associated wiring. Check VSM and associated wiring. Reset steering angle sensor calibration and erase DTC(s). Check wiring and connector condition. Reset steering angle sensor calibration. First erase DTC, then check wiring and connector condition. Check wiring and connector condition between torque sensor and ECU. C1696, C1697 C1612, C1646 C1628, C1656 C1692, C1693 SPAS signal error TCU signal error Instrument cluster signal error VSM signal error C1259 Steering angle sensor signal error C1260 C1261 Steering angle sensor signal error Zero-setting error C1290 Torque sensor signal error C1112 Torque sensor voltage error C1704 C1705 C1604 C2413 C2400 C2401 ECU fail-safe relay fault ECU hardware error ECU over/discharge error ECU hardware error Motor signal error Motor circuit error First erase DTC, then check wiring and connector at ECU. C2412 Motor voltage supply error First erase DTC, check wiring and connector between ECU and motor. C1623 C1687 CAN time out SAS CAN time out VSM C1688 VSM signal error 1. Check MDPS power connector and fuse. 2. Check MDPS ground line. 3. Check MDPS ECU / VSM CAN line. 4. Communication status with GDS. 5. Check for C1259 -> if present with these DTCs, replace column and housing assembly. TSB #: 20-ST-001H Repair Recommendations Recharge battery voltage. No replacement necessary. Check EMS CAN line. Check the chassis CAN line. Check the EMS (Engine ECU). Repair as necessary. Erase DTC(s). MDPS assembly is not to be replaced. If DTC returns, replace column & housing assembly. If DTC returns, inspect wiring and connector condition. If DTC returns, replace column & housing assembly. If DTC returns, replace MDPS ECU (or Power Pack Assy). If DTC returns, replace MDPS motor (or Power Pack Assy). First replace MDPS ECU (or Power Pack Assy). If DTC returns, replace MDPS motor (if applicable). If DTC returns, replace MDPS ECU (or Power Pack Assy). If DTC returns and MDPS is inoperable, replace MDPS ECU (or Power Pack Assy). If DTC returns and MDPS operation is normal, continue investigation into wiring issues. Page 6 of 6 SUBJECT: