Subaru 1983 – 1988 Carbureted models DTC 33 – Main system in feedback (1983 to 1988)/Vehicle speed sensor or circuit (1983 to 1985)
DTC 33 meaning on Subaru 1983 – 1988 Carbureted models
DTC 33 in the Main system in feedback (1983 to 1988) or Vehicle speed sensor or circuit (1983 to 1985) for Subaru 1983 – 1988 Carbureted models indicates an issue with the vehicle speed sensor or its circuit.
Subaru 1983 – 1988 Carbureted models DTC 33 symptoms
Common symptoms of DTC 33 in Subaru 1983 – 1988 Carbureted models may include:
- Speedometer not working or erratic speedometer readings
- Harsh shifting or transmission issues
- Check Engine Light (CEL) illuminated
Subaru 1983 – 1988 Carbureted models DTC 33 causes
The potential causes of DTC 33 in Subaru 1983 – 1988 Carbureted models are:
- Defective vehicle speed sensor
- Wiring or connector issues in the speed sensor circuit
- Faulty speedometer head unit
Subaru 1983 – 1988 Carbureted models DTC 33 seriousness
DTC 33 in Subaru 1983 – 1988 Carbureted models should be addressed promptly to prevent potential transmission issues and ensure accurate speed readings.
How to diagnose DTC 33 on Subaru 1983 – 1988 Carbureted models
To diagnose DTC 33 in Subaru 1983 – 1988 Carbureted models, you can perform the following steps:
- Use a scan tool to retrieve the trouble codes
- Inspect the vehicle speed sensor and its wiring for any visible damage
- Test the speed sensor using a multimeter
How to fix DTC 33 on Subaru 1983 – 1988 Carbureted models
To fix DTC 33 in Subaru 1983 – 1988 Carbureted models, you can try the following solutions:
- Replace the faulty vehicle speed sensor
- Repair any damaged wiring or connectors in the speed sensor circuit
- If needed, replace the speedometer head unit
How to erase DTC 33 on Subaru 1983 – 1988 Carbureted models
To erase DTC 33 in Subaru 1983 – 1988 Carbureted models, you can clear the trouble codes using a scan tool or by disconnecting the battery for a few minutes to reset the system.
Recommended tools for Subaru 1983 – 1988 Carbureted models diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.