Toyota OBD1 Codes List (Free Download PDF)
Are you the owner of an early 90s Toyota and struggling with OBD1 codes?
Don’t fret, we’re here to help.
Our comprehensive post provides a list of codes and their meanings, making it easy to troubleshoot your vehicle’s issues.
So, let’s dive into our Toyota OBD1 codes list now!
A Comprehensive Toyota OBD1 Codes List And Their Meanings
Free Download: Full Toyota OBD1 Trouble Codes List PDF
Note: To read the Jeep OBD1 codes list table on your mobile device, swipe left or right to scroll through the codes and their descriptions.
| Code | Definition |
|---|---|
| Code 1 | Normal Condition |
| Code 2 | Air Flow Meter Signal |
| Code 3 | Ignition Signal |
| Code 4 | Engine Coolant Temperature Sensor Signal |
| Code 5 | Oxygen Sensor |
| Code 6 | Rpm Signal (Crank Angle Pulse) |
| Code 7 | Throttle Position Sensor Signal |
| Code 8 | Intake Air Temperature Sensor Signal |
| Code 9 | Vehicle Speed Sensor Signal |
| Code 10 | Starter Signal |
| Code 11 | Switch Signal |
| Code 11 | ECU/ECM |
| Code 12 | Knock Control Sensor Signal/ |
| Code 12 | Rpm Signal |
| Code 13 | Knock Control CPU (ECM) |
| Code 13 | RPM Signal |
| Code 14 | Turbocharger Pressure |
| Code 14 | Ignition Signal |
| Code 16 | Electronic Controlled A/T Signal |
| Code 21 | Oxygen Sensor |
| Code 22 | Engine Coolant Temperature Sensor Signal |
| Code 23 | Intake Air Temperature Sensor Signal |
| Code 24 | Intake Air Temperature Sensor Signal |
| Code 25 | Air-Fuel Ratio Lean |
| Code 26 | Air-Fuel Ratio Rich |
| Code 27 | Sub Oxygen Sensor Signal |
| Code 28 | No. 2 Oxygen Sensor Signal |
| Code 31 | Air Flow Meter Signal (Vacuum Sensor Signal) |
| Code 32 | Air Flow Meter Signal |
| Code 34 | Turbocharger Pressure Signal |
| Code 35 | Turbocharger Pressure Sensor Signal |
| Code 35 | Hac Sensor Signal |
| Code 41 | Throttle Position Sensor Signal |
| Code 42 | Vehicle Speed Sensor Signal |
| Code 43 | Starter Signal |
| Code 51 | Switch Signal |
| Code 52 | Knock Sensor Signal |
| Code 53 | Knock Sensor Signal |
| Code 54 | Inter-Cooler Ecm Signal |
| Code 55 | Right Knock Sensor Signal |
| Code 71 | EGR System |
| Code 72 | Fuel Cut Solenoid Signal |
| Code 78 | Fuel Pump Control Signal |
| Code 81 | TCM Communication |
| Code 83 | TCM Communication |
| Code 84 | TCM Communication |
| Code 85 | TCM Communication |
Final Thoughts
Our Toyota OBD1 codes list makes diagnosing your vehicle’s problems easier than ever, ensuring your Toyota runs smoothly for years to come.
Have you used our codes list to diagnose and repair issues in your vehicle? Share your experiences in the comments below and help others troubleshoot with ease.
We also offer the all Toyota OBD2 codes list for any issues you may encounter with newer models. Explore it HERE!
Tools Recommendation
Whether you’re a DIY mechanic or a professional, having the right Toyota OBD1 codes tools is essential for any automotive project. Our recommended list of must-have tools includes a quality OBD1 scanner that can read Toyota-specific codes, which will help you diagnose and fix the vehicle’s issues with ease and confidence.
>>>Actron CP9690 Elite AutoScanner Kit
>>>KAIWEETS Digital Multimeter
>>>WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
References Sources
We take accuracy seriously at OBDCodex, which is why we rely on trusted reference sources for all of our OBD1 code lists. This is the source we consulted to compile our comprehensive Toyota OBD1 codes list:
- Toyota Diagnostic Trouble Codes Full List – obdii365
- Toyota OBD I Diagnostic Codes – freeautomechanic.com
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