Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA1994TERCEL DX, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES
1994 Toyota Tercel DX, 4D Sedan, Standard
Engine Controls - Tests W/Codes
1994 Toyota Tercel DX, 4D Sedan, StandardSECTION Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Trouble Code Diagnostic Hints
- Trouble Code Identification
- Trouble Code Charts
- ECM Terminal Identification
- Diagnostic Circuit Check
- Test No. 1 ECM Power Source
- Test No. 2 - ECM (+B) Circuit Check
- DTC 12, 13 - Rpm Signal
- DTC 14 - Ignition Signal
- DTC 21 - Oxygen Sensor Signal
- DTC 22 - Engine Coolant Temperature Sensor Signal
- DTC 24 - Intake Air Temperature Sensor Signal
- DTC 25, 26 - Lean Or Rich Air/Fuel Mixture
- DTC 31 - Vacuum Sensor Signal
- DTC 41 - Throttle Position Sensor Signal
- DTC 42 - Vehicle Speed Sensor Signal
- DTC 43 - Starter Signal
- DTC 51 - Switch Signal
- DTC 71 - EGR System Malfunction
- Summary
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.