Exiting Diagnostic Mode
WARNING: This page is about a different car, the 1987 Toyota Cressida. However, it is still accessible from the selected car via links, so may be relevant.
To exit diagnostic mode with Super Monitor Display, turn off ignition or push any button (except "SET") of Super Monitor Display to display time.
For diagnostic mode without Super Monitor Display, remove jumper wire from engine check connector. Turn ignition off. After cancellation, perform a road test to confirm that a normal code is now displayed.
TROUBLE CODE IDENTIFICATION
| Code No. | Circuit Affected |
|---|---|
| No Code | System Normal |
| 11 | ECU (B+) |
| 12 & 13 | RPM Signal |
| 14 | Ignition Signal |
| 21 | Oxygen Sensor Signal |
| 22 | Coolant Temp. Sensor Signal |
| 23 | Intake Air Temp. Sensor Signal |
| 24 | Intake Air Temp. Sensor Signal |
| 31 | Airflow Meter Signal |
| 32 | Airflow Meter Signal, HAC Sensor Signal |
| 41 | Throttle Position Sensor Signal |
| 42 | Vehicle Speed Sensor Signal |
| 43 | Starter Signal |
| 51 | Switch Signal |
| 52 | Knock Sensor Signal |
| 53 | Knock Sensor Control (ECU) |
TROUBLE CODES & PROBABLE CAUSE
| 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 (Water) Temperature Sensor Or Circuit, ECU |
| 23 | Intake Air Temperature Sensor Or Circuit, ECU |
| 24 | Intake Air Temperature Sensor Or Circuit, ECU |
| 31 | Airflow Meter Or Circuit, ECU |
| 32 | Airflow Meter Or Circuit, ECU |
| 34 | Airflow Meter, Turbocharger, ECU |
| 41 | Throttle Position Sensor Or Circuit, ECU |
| 42 | Vehicle Speed Sensor Or Circuit, ECU |
| 43 | Main Relay Circuit, Starter Circuit, Ignition Circuit, ECU |
| 51 | Throttle Position Sensor Or Circuit A/C Switch, Neutral/Start Switch, ECU |
| 52 | Knock Sensor Or Circuit, ECU |
| 53 | ECU |