Hyundai Elantra AD Quiz
Automatic Transmission

Inhibitor Switch Troubleshooting

In this manual: Automatic Transmission
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
~2min read

Diagnostic Trouble Code Troubleshooting

Symptom Troubleshooting

Main Symptom Possible Cause Components to Inspect and Remedy
Shift lever does not operate Incorrect shift cable tension Adjust the shift cable tension
(Refer to "Automatic Transaxle System - Inhibitor Switch")
Faulty shift cable assembly/connection Check the manual control lever assembly and reassemble if necessary.
Incorrect shift cable bracket installation Check the cable installation on the shift lever assembly and repair if necessary.
Shock when shifting into D/R and back

Engine races when shifting into D/R		 Incorrect "N" position adjustment of the inhibitor switch Use the special tool to adjust the "N" position setting.
(Refer to "Automatic Transaxle System - Inhibitor Switch")
Incorrect oil pressure in the valve body. Replace the valve body assembly or inspect/replace the transaxle assembly.
Engine starts incorrectly

Current gear not displayed in cluster

Warning lamp illuminated

Engine stalls when stopping

Creep function not possible

Automatic parking release disabled		 Faulty CAN termination resistor/circuit Check the PCU/battery control module.
Check the PCU wiring connector connection.
Faulty power supply (Fig. 1) to the inhibitor switch circuit. Check for looseness at the power terminal of the junction box in the engine compartment, the connection, and the fuse (TCU2). Repair the terminal or replace the junction box if necessary.
Faulty fuse in the inhibitor switch circuit Check the fuse and the junction box terminal and repair.
Faulty inhibitor switch wiring connector Check the wiring connector for foreign material and check the terminal for looseness.
Check the seal on the unused pin and make sure there is no corrosion on the terminal.
Faulty reverse lamp circuit Check the reverse lamp ground and reassemble if necessary.
Faulty ground of the inhibitor switch wiring Check the wiring ground and reassemble if necessary.
Faulty inhibitor switch circuit
(unused code)		 Inspect according to the inspection procedure, then replace the inhibitor switch if necessary.
Faulty inhibitor switch operation
(incorrect middle range)		 Inspect according to the inspection procedure, then replace the inhibitor switch if necessary.

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