Hyundai Equus: 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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