Hyundai Ioniq: Inhibitor Switch / Troubleshooting
| Fault Diagnosis |
| Fault Diagnosis for Symptom |
|
Major Symptom
|
Expected Cause
|
Items to Check and Measures
|
| Shift lever not operating Gear not marked on cluster Shock occurs while shifting lever Warning lamp ON Engine OFF while vehicle is parked | Inhibitor switch circuit abnormal Inhibitor switch function abnormal | Check the inspection FLOW and replace the inhibitor switch |
| Inhibitor switch "N" setting faulty | Adjust "N" setting using "N" setting jig (Refer to Dual Clutch Transmission Control System - "Inhibitor Switch") | |
| Shift cable separation faulty | Adjust shift cable separation (Refer to Dual Clutch Transmission Control System - "Inhibitor Switch") | |
| Poor ground condition on reversing light circuit | Check the ground condition on reversing light and retighten it | |
| Inhibitor switch vehicle side circuit abnormal | Check the connection of junction box power terminal, fuse (TCU) terminal and replace the junction box or adjust the gap | |
| Check inside the inhibitor switch connector for foreign substance and whether terminal is bent | ||
| Poor ground condition on inhibitor switch wire | Check the ground condition of wire and retighten it | |
| Poor inhibitor unit (disconnection/short-circuit) | Replace inhibitor switch (refer to inhibitor switch inspection) |
Repair procedures
Inspection
•
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage...
Other information:
Hyundai Ioniq (AE) 2017-2024 Service Manual: High voltage shut-off procedures
High Voltage Shut-off Procedures • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries...
Hyundai Ioniq (AE) 2017-2024 Service Manual: Reservoir. Components and components location
C..
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