An improperly functioning key lock module on a 2012 Hyundai Genesis Sedan or Equus may result in not being able to move the shift lever out of Park with ignition ON and the brake pedal depressed; while the shift lever may be moved out of Park using the shift override button.
- Turn the ignition key to the ON position or push the Start/Stop button two times.
- Using a GDS, check for DTC in the “Automatic Transaxle” menu. Record any DTC and description. Repair according to the related shop manual (DTC section). Note: An intermittent brake switch input may result in the same symptoms.
- From the GDS, select the following parameters:
- Vehicle and A/T menu
- “Current Data”
- Shift Lever Switch and Brake Switch
- Move the shift lever into Park. Confirm that the shift lever switch indicates P. If not, go to Step 5. Confirm the “Brake Switch” indicates ON when the brake pedal is depressed. If not, check the brake switch operation according to the related shop manual “Brake Switch” section and “Repair Procedures.” Replace the brake switch if necessary. Go to Step 5.
- Visually check the wiring harness between the PCM and key lock module for a damaged wire or open circuit/short circuit to ground. Check for a damaged pin or pin not fully inserted into the connector. If damage exists, repair or replace the control harness and confirm the repair. If no damage or open/short circuit is found, go to Step 6.
- Remove the undercover panel below the glove box.
- Lower the panel to access the key lock module. Disconnect the connector to the module.
- Turn the ignition switch ON and test the inputs to the key lock control module. Use a voltmeter and a small pin to probe the #4 harness connector. The voltage should be 0V with the brake pedal depressed; and 12V with the brake pedal released. Confirm that the following pins have 12 volts with the ignition ON: #2, #4, #5, #7, #10 and #13. Replace the key lock module if the inputs to the control module are correct.
- Reinstall the undercover.
The key lock module is accessed by removing the undercover below the glovebox.
Check for 12 volts (with ignition ON) at pins 2, 4, 5, 7, 10 and 13.