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.
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HOMESERVICE MANUALSTOYOTA1984CRESSIDA 4D WAGONREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMTCCS ENGINE CONTROL SYSTEMTESTINGTROUBLE CODE DEFINITIONS
1984 Toyota Cressida 4D Wagon
Trouble Code Definitions
1984 Toyota Cressida 4D WagonSECTION Trouble Code Definitions
TROUBLE CODES & PROBABLE CAUSE FOR CODES
| Code No. | Probable Cause |
|---|---|
| 11 | Main Relay or Circuit, ECU |
| 12 & 13 | Distributor or Circuit, Starter Signal Circuit, ECU |
| 14 | Ignitor or Circuit, ECU |
| 21 | Oxygen Sensor or Circuit, ECU |
| 22 | Coolant Temp. Sensor or Circuit, ECU |
| 23 | Intake Air Temp. Sensor or Circuit, ECU |
| 31 & 32 | Air Flow Meter or Circuit, ECU |
| 41 | Throttle Position Sensor or Circuit, ECU |
| 42 | Vehicle Speed Sensor or Ckt, Slipping Torque Converter, ECU |
| 43 | Main Relay Circuit, Starter Circuit, Ignition Circuit, ECU |
| 51 | Neutral/Start Switch, A/C Switch, ECU |
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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.