chatgpt did this cheat sheet for me showing the likely tipm reset/default issues that jScan can fix....
2009 Jeep JK - TIPM & JScan Quick Config Checklist
Quick reference after TIPM replacement or electrical changes.
Applies to 2009 Jeep Wrangler JK. Use JScan app + OBD adapter.
1. Tire Size Calibration
- Menu: Adaptations -> Vehicle Configuration -> Tire Size
- Measure actual tire diameter (inches) from ground to top, ~1/3 tread worn.
- Enter measurement, write configuration, cycle ignition.
2. Disable Factory Locker System (No Lockers)
- Menu: Adaptations -> Vehicle Configuration -> Axle Locker Present
- Set to: Not Present (or No Lockers)
- Write configuration, cycle ignition.
3. Transfer Case Type
- Menu: Adaptations -> Vehicle Configuration -> Transfer Case Type
- Non-Rubicon: NV241J
- Rubicon: NV241OR
- Write configuration, cycle ignition.
4. Cruise Control Present
- Menu: Adaptations -> Vehicle Configuration -> Cruise Control Present
- Set to Yes if equipped.
- Write configuration, cycle ignition.
5. Daytime Running Lights (DRL)
- Menu: Adaptations -> Vehicle Configuration -> Daytime Running Lights Type
- Select desired DRL behavior (None, Low Beam, High Beam, etc.).
- Write configuration.
6. TPMS Settings
- Menu: Adaptations -> Vehicle Configuration -> Tire Pressure Monitoring System
- Adjust PSI threshold to match your setup (e.g., beadlocks/low PSI off-road).
- Or disable if desired.
7. Fog Lights with High Beams
- Menu: Adaptations -> Vehicle Configuration -> Fog Lamp Dropout
- Set to No (fogs stay on with high beams).
- Write configuration.
8. Headlamp Type
- Menu: Adaptations -> Vehicle Configuration -> Headlamp Type
- Select LED if upgraded (prevents bulb-out warnings).
9. LED Hyperflash Fix
- Menu: Adaptations -> Vehicle Configuration -> Lamp Out Detection
- For each LED lamp (front turn, rear turn, parking), set detection to Not Present or Disabled.
- Write configuration, cycle ignition.
Tip: Save a full module scan report in JScan after making changes.