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 MANUALSHYUNDAI2013GENESIS COUPE 2.0T PREMIUMREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALSTARTERBUTTON ENGINE START SYSTEMPDM (POWER DISTRIBUTION MODULE)DTC B1990: ESCL BATTERY SHORT CIRCUIT TO GROUNDPDM GROUND CIRCUIT INSPECTION

2013 Hyundai Genesis Coupe 2.0T Premium

PDM Ground Circuit Inspection

2013 Hyundai Genesis Coupe 2.0T PremiumSECTION PDM Ground Circuit Inspection

Check short at power terminal of PDM
1. IG "ON" & ENG "OFF".
2. Measure voltage between ESCL power terminal of PDM and chassis ground.
  (Measure the voltage while ESCL works.)
  
  Specification: Approx. 12 V
  
  Fig 1: Measuring Voltage Between ESCL Power Terminal Of PDM And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
3. Is the measured voltage within specifications?
  YES
  - Go to "Check short to ground on ESCL power circuit " procedure.
  NO
  - Check open or short on the power circuit between PDM and ESCL.
    Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR "
Check short to ground on ESCL power circuit
1. IG "ON" & ENG "OFF"
2. Disconnect the connectors of IPM, PDM, ESCL.
3. Measure resistance between ESCL power terminal and chassis ground.
  Specification: ∞ Ω
  
  Fig 2: Measuring Voltage Between ESCL Power Terminal And Chassis Ground
  Courtesy of HYUNDAI MOTOR CO.
4. Is the measured voltage within specifications?
  YES
  - Substitute with a known-good ESCL and check for proper operation.
    If the problem is corrected, replace the unit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  - Substitute with a known-good PDM and check for proper operation.
    If the problem is corrected, replace the unit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR ".

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.