PTH 522019.04 – ELX2 State Voltage Below Normal, or Shorted to Low Source
PTH 522019.04 (PTH )
Code: 522019.04
Shortcode:
Description:
This fault code indicates that the ELX transmission enable pin is incorrectly in a low state, which can be caused by a voltage drop or a short to ground.
Reaction:
When this error is detected, the transmission may not engage properly, leading to potential issues with vehicle mobility and performance. The system may log the fault and take corrective actions to prevent damage.
Recommendations:
Fuse Test:
- Inspect the fuse related to the ELX transmission enable pin.
- Ensure the fuse is intact and not blown.
- Replace the fuse if necessary.
Inspect Key Switch (S01) or S01 Key Switch—EEC:
- Check the key switch for proper operation.
- Ensure the switch is not damaged and is functioning correctly.
- Verify all electrical connections are secure and free from corrosion.
Test Power Train Hydrostatic Control Unit (PTH):
- Perform diagnostic tests on the PTH control unit to identify any faults.
- Ensure all electrical connections to the control unit are secure and free from corrosion.
Check Wiring and Connections:
- Inspect the wiring harness connected to the ELX transmission enable pin for any signs of damage, wear, or loose connections.
- Repair or replace any damaged wiring as necessary.
Update Control Software:
- Ensure the control unit software is up-to-date with the latest fixes and improvements.
Consult Technical Support:
- If the issue persists, contact technical support for further diagnostics and assistance.
Monitor System Performance:
- After addressing the issue, monitor the transmission system to ensure normal operation and that the fault does not reappear.
Note:
Regular inspection and maintenance of the key switch and associated wiring can prevent this fault. Consider environmental factors such as moisture or corrosion that can impact electrical components.