Hyundai Tucson: General Information / Troubleshooting
Features a fail-safe mechanism that provides "limp-home" 4th
gear hold to enable the vehicle to be driven to the owner's home or
dealer shop.
Fail-Safe: The TCM provides 4th gear hold and Reverse gear in the event of a malfunction.
Limp Home: Maintains minimal functionality (Drive(4th gear
hold), Reverse) in the event of a malfunction, making it possible for
the vehicle to reach the dealer shop.
Self-diagnosis
Transaxle Control Module (TCM) is in constant communication with the control system's components (sensors and solenoids).
If an abnormal signal is received for longer than the
predefined duration, TCM recognizes a fault, stores the fault code in
memory, and then sends out a fault signal through the self-diagnosis
terminal. Such fault codes are independently backed up and will not be
cleared even if the ignition switch is turned off, the battery is
disconnected, or the TCM connector is disconnected.
• |
Disconnecting a sensor or an actuator connector while the
ignition switch is in the "On" position generates a Diagnostic Trouble
Code (DTC) and commits the code to memory. In such event, disconnecting
the battery will not clear the fault diagnosis memory. The diagnosis
tool must be used to clear the fault diagnosis memory. |
• |
Before removing or installing any part, read the diagnostic trouble codes and then disconnect the battery negative (-) terminal. |
• |
Before disconnecting the cable from battery terminal, turn
the ignition switch to OFF. Removal or connection of the battery cable
during engine operation or while the ignition switch is ON could cause
damage to the Transaxle Control Module (TCM). |
• |
When checking the generator for the charging state, do not
disconnect the battery '+' terminal to prevent the Engine Control Module
(ECM) from damage due to the voltage. |
• |
When charging the battery with the external charger,
disconnect the vehicle side battery terminals to prevent damage to the
TCM.
|
|
Checking Procedure (Self-diagnosis)
• |
When battery voltage is excessively low, diagnostic trouble
codes can not be read. Be sure to check the battery for voltage and the
charging system before starting the test.
|
|
Inspection Procedure (Using the GDS) |
1. |
Turn OFF the ignition switch. |
2. |
Connect the GDS to the data link connector on the lower crash pad. |
3. |
Turn ON the ignition switch. |
4. |
Use the GDS to check the diagnostic trouble code. |
5. |
Repair the faulty part from the diagnosis chart. |
6. |
Erase the diagnostic trouble code. |
• |
After replacing the automatic transaxle, use the GDS to reset
(erase the TCM learning values). Then perform Transaxle Control Module
(TCM) learning to provide optimum shift quality.
(Refer to Automatic Transaxle Control System - "Repair procedures") |
• |
Adding automatic transaxle fluid.
(Refer to Hydraulic System - "Fluid") |
• |
After servicing the automatic transaxle or TCM, clear the
Diagnostic Trouble Code (DTC) using the GDS tool. Diagnostic Trouble
Codes (DTC) cannot be cleared by disconnecting the battery. |
|
Symptom Troubleshooting
Trouble symptom
| Suspect area
| Remedy
|
Shift delay
| Breakdown of clutch or brake Faulty hydraulic control Faulty hydraulic supply x x x
| Clutch, Brake Solenoid valve, Valve body Electric oil pump Mechanical oil pump Cleanliness of automatic transaxle fluid (foreign material) Automatic transaxle fluid level
|
Vibration of the vehicle, when the shifting Shift shock x x x x x x
| Damaged of clutch or brake Faulty hydraulic control Faulty hydraulic supply Faulty transaxle mounting Faulty speed sensor Faulty Harness Damaged connector & wiring
| Clutch, Brake Solenoid valve, Valve body Electric oil pump Mechanical oil pump Cleanliness of automatic transaxle fluid (foreign material) Automatic transaxle fluid level Speed sensor and connector Harness & connector of transaxle Connector & wiring of vehicle
|
Fixed gear (shift impossible)
| Faulty solenoid valve Faulty TCM software program x x x x x x x
| Clutch, Brake Solenoid valve, Valve body Electric oil pump Mechanical oil pump Cleanliness of automatic transaxle fluid (foreign material) Automatic transaxle fluid level Speed sensor and connector Harness & connector of transaxle Connector & wiring of vehicle
|
limited gear (shift possible)
| Faulty inhibitor switch Faulty hydraulic supply x
| Inhibitor switch & connector Connector & wiring of vehicle Power
|
Driving impossible
| Faulty CAN Communication
| CAN Communication line TCM, ECM Power
|
Poor acceleration
| Faulty hydraulic control Faulty hydraulic supply x x x x x
| Solenoid valve, Valve body Electric oil pump Mechanical oil pump Cleanliness of automatic transaxle fluid (foreign material) Automatic transaxle fluid level Connector & wiring of vehicle Power
|
Special Service Tools
Tools (Number and name)IllustrationUse09200-3N000Engine support fixture(Beam)Removal and installation of the transaxle.Use this beam (SST No. : 09200-38001/09200-3N000) with ...
Other information:
Hyundai Tucson (LM) 2010-2015 Owners Manual: Phone Menu Screen
Phone Menus
With a Bluetooth® Wireless Technology device connected, press the
key to display the Phone menu screen.
1) Favorite : Up to 20 frequently used contacts saved for easy access
2) Call History : Displays call history list screen
3) Contacts : Displays the Contacts list
4) Setup : ...
Hyundai Tucson (LM) 2010-2015 Service Manual: 4WD ECU Repair procedures
Replacement
1.
Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with the GDS tool.
(Refer to 4WD Control System - "Adjustment")
2.
Disconnect the battery negative cable from the battery
3.
Disconnect the 4WD ECU connector (A).
4.
Loosen the nust (A) and then remo ...