Hyundai Tucson: Automatic Transaxle Control System / Inhibitor Switch Repair procedures

Hyundai Tucson (LM) 2010-2015 Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Inhibitor Switch Repair procedures

Inspection

•	Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Inspection flow

Items to check

1.	Inspect DTC code.

Inspect whether N setting matches.

A.	Adjust N setting (refer to automatic transmission system - "inhibitor switch")

Inspect shift cable separation.

A.	Adjust shift cable separation (refer to automatic transmission system - "shift cable")

Inspect whether connector is connected.

A.	Inspect connector thoroughly for looseness, poor connection, bending, corrosion, contamination, deformation, or damage.

Turn ignition key "ON" and engine "OFF" and measure the power supplied to inhibitor switch circuit and voltage between ground.

Specification: approx. 12 V

C.	Fix the pin wiring when connector pin wiring is faulty (refer to ETM - "wiring repair").

Inspect ground condition on reversing light circuit.

A.	Check the ground location of reversing light (refer to ETM - "harness location map").

B.	Reattach reversing light if ground condition is faulty.

Inspect wiring connection on junction box power terminal and fuse lamp.

A.	Check whether fuse holder is separated and holder is holding the fuse tight.

B.	Attach tester fuse to check if it is connected appropriately.

C.	Check whether fuse capacity is appropriate for each circuit.

D.	Check if fuse is damaged.

E.	Check pulling of fuse fixing wiring, inflow of foreign substance, and arrangement condition of terminal.

F.	Relocate the terminal that has been pulled and inspect using the method explained above.

G.	When problem is not solved, refer to the circuit diagram wiring repair instructions to fix or replace the terminal.

Inspect inhibitor switch signal.

A.	Turn ignition key "ON" and engine "OFF".

Measure the voltage between each terminal and chassis ground when shifting lever to "P, R, N, D" range.

Specified value: refer to specification "signal code" table

Removal

1.	Set shift lever to "N" position.

2.	Remove the air duct. (Refer to Engine Mechanical System - "Air cleaner")

3.	Remove the battery and the battery tray. (Refer to Engine Electrical System - "Battery")

4.	Disconnect the inhibitor switch connector (A).

Remove the shift cable mounting nut (B).

Tightening torque :

7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

Remove the manual control lever (B) and the washer after removing a nut (A).

Tightening torque :

17.7 ~ 24.5 N.m (1.8 ~ 2.5 kgf.m, 13.0 ~ 18.1lb-ft)

Use a SST (09480-A3800) or 0.1969in.( 5mm) bolt, fix the inhibitor manual control lever in the N jig hole (A) when you assemble the inhibitor (B).

Remove the inhibitor assembly (A) after removing the bolts (2ea).

Tightening torque :

9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

Installation

1.	Install in the reverse order of removal.

Inhibitor Switch Troubleshooting

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