12 – Subaru 1984 – 1986 Fuel injected models DTC

Subaru 1984 – 1986 Fuel injected models DTC 12 – Starter switch off

DTC 12 meaning on Subaru 1984 – 1986 Fuel injected models

DTC 12 on Subaru 1984 – 1986 Fuel injected models indicates “Starter switch off.” This means that the Engine Control Module (ECM) has detected that the starter switch is in the off position when the engine is running or cranking.

Subaru 1984 – 1986 Fuel injected models DTC 12 symptoms

The symptoms of DTC 12 on Subaru 1984 – 1986 Fuel injected models may include:

• Engine not starting
• Engine stalling
• Difficulty starting the engine

Subaru 1984 – 1986 Fuel injected models DTC 12 causes

The possible causes of DTC 12 on Subaru 1984 – 1986 Fuel injected models are:

• Defective starter switch
• Wiring issues in the starter switch circuit
• Faulty Engine Control Module (ECM)

Subaru 1984 – 1986 Fuel injected models DTC 12 seriousness

DTC 12 on Subaru 1984 – 1986 Fuel injected models is a moderate issue that can cause inconvenience and potential starting problems. It is important to address this code promptly to ensure proper engine operation.

How to diagnose DTC 12 on Subaru 1984 – 1986 Fuel injected models

To diagnose DTC 12 on Subaru 1984 – 1986 Fuel injected models, you can:

1. Check the starter switch for proper operation
2. Inspect the wiring connected to the starter switch for any damage or loose connections
3. Use a diagnostic scanner to retrieve the trouble codes and further pinpoint the issue

How to fix DTC 12 on Subaru 1984 – 1986 Fuel injected models

To fix DTC 12 on Subaru 1984 – 1986 Fuel injected models, you can:

1. Replace the faulty starter switch
2. Repair any damaged wiring in the starter switch circuit
3. If necessary, replace the Engine Control Module (ECM)

How to erase DTC 12 on Subaru 1984 – 1986 Fuel injected models

To erase DTC 12 on Subaru 1984 – 1986 Fuel injected models, you can:

1. Use a diagnostic scanner to clear the trouble codes
2. After fixing the underlying issue, perform a drive cycle to ensure the code does not return

Recommended tools for Subaru 1984 – 1986 Fuel injected 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.