P1730
Automatic Transmission Interlock
P1730 is an OBD-II diagnostic trouble code meaning: Automatic Transmission Interlock. Common causes: selector lever position sensor malfunction, problems with the automatic transmission locking chain. Estimated repair cost: $17–89.
Symptoms
- The car does not change gears
- The gearbox is locked in one position
- Check Engine Light Is On
- Problems starting the engine (in some models)
- Inability to move selector out of Park position
Causes
- Selector lever position sensor malfunction
- Problems with the automatic transmission locking chain
- Interlock solenoid malfunction
- Mechanical damage in the gearbox
- Problems with the automatic transmission control module
How to Fix
- Check fuses associated with the automatic transmission system
- Diagnose the gear selector position sensor
- Check the integrity of the locking circuit
- Test Interlock Solenoid
- If necessary, replace faulty components
Related codes
Error P1730 by Vehicle Brand
FAQ
What does the P1730 code mean?
P1730 is an OBD-II diagnostic trouble code that indicates: Automatic Transmission Interlock
What causes a P1730 error code?
The most common causes of P1730 include: Selector lever position sensor malfunction; Problems with the automatic transmission locking chain; Interlock solenoid malfunction; Mechanical damage in the gearbox.
How do I fix a P1730 diagnostic trouble code?
To fix P1730: Check fuses associated with the automatic transmission system. Diagnose the gear selector position sensor. Check the integrity of the locking circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1730?
Limited driving only, diagnose soon
How much does it cost to fix P1730?
The estimated repair cost for P1730 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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