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Hyundai Equus: Troubleshooting - Power Trunk Module - Body Electrical System - Hyundai Equus VI 2009-2025 Service ManualHyundai Equus: Troubleshooting

Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Body Electrical System / Power Trunk Module / Troubleshooting

Troubleshooting
Diagnosis And Testing - Power Trunk Lid System
The power trunk lid system is a complex system containing many components. In order to perform conclusive testing, or receive outputs the power trunk lid control module must be checked.
The most reliable, efficient, and accurate means to diagnose the power trunk lid system requires the use of a scan tool and the proper Body Diagnostic Procedures manual. The scan tool can be used to observe current switch status recorded in the power trunk lid control module to help the technician diagnose an inoperative switch.
Before any testing of the power trunk lid system is attempted, the battery should be fully charged, all power trunk lid system inhibitors read and understood (Refer to power trunk lid system description for list).
Following are quick reference diagnostic tables to help when diagnosing and testing the power trunk lid system.
NO
Item
Specification description
Output
Form
1
A_VBAT
Bat Voltage on PTM
Voltage(V)
2
Hall SNSR power voltage
Hall sensor voltage PTM input
3
LED ON/OFF
Vbatt Power (between 9.0v and 16v)
ON/OFF
4
Trunk Lid Latch SW
Trunk main Switch
5
P_Striker_SW
Trunk Lid outside Handle switch
6
Trunk_Trim_Close SW
Trunk Inner Push Button
7
Trunk_INR_Push Button
Trunk Trim Close
8
Trunk Lid O/S HDL SW
Power Striker Switch
9
Trunk main SW
Trunk Lid Latch Switch
10
Vbatt Power Voltage in Range
LED On/Off
11
Drive Motor Operating Voltage
Drive motor Open/Close voltage
PTM output
Voltage(V)
12
Power Striker Operating Voltage
Power Striker motor Pop-up/Close
Voltage PTM output
13
Trunk Lid Position
Current Trunk position in counter
%
14
Unknown Trunk Lid Position Flag
Learn ProcessComplete Status
ON/OFF
15
Learn Process Complete Status
Unknown Trunk Lid Position Flag
ON/OFF
16
Most recent close time (P/Strikeer)
Most recent close time
ms
17
2ND Most recent close Time
(P/Strikeer)
2ND Most recent close time

    Repair procedures
    Inspection System Parameterization Parameterization of the system has to be performed to find the amount of pulses needed to open the trunk. Due to tolerances not every car is equal. Therefore ...

    Power Trunk Module Drive Unit Components and Components Location
    Component Location 1. Gear motor2. Drive bracket3. Push rod4. Gear5. Drive arm6. Power trunk module control unit7. Push rod pin ...

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