Fail-Safe Chart
HINT:
If any of the following codes are recorded, the ECM enters the fail-safe mode.
FAIL-SAFE CHART
| DTC No. | Fail-Safe Operation | Fail-Safe Deactivation Conditions |
|---|---|---|
| P0031, P0032, P0037, P0038, P0051, P0052, P0057 and P0058 | The heater circuit in which an abnormality is detected is turned off | Ignition switch OFF |
| P0100, P0102 and P0103 | Ignition timing is calculated from engine RPM and TP (Throttle Position) | "Pass" condition detected |
| P0110, P0112 and P0113 | IAT (Intake Air Temperature) is fixed at 20°C (68°F) | "Pass" condition detected |
| P0115, P0117 and P0118 | ECT (Engine Coolant Temperature) is fixed at 80°C (176°F) | "Pass" condition detected |
| P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2102, P2103, P2111, P2112, P2118, P2119 and P2135 | If the Electronic Throttle Control System (ETCS) has a malfunction, the ECM cuts off current to the throttle control motor The throttle control valve returns to a predetermined opening angle (approximately 7°) by the force of the return spring The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the accelerator pedal opening angle to enable the vehicle to continue at a minimal speed If the accelerator pedal is depressed firmly and slowly, the vehicle can be driven slowly If the accelerator pedal is depressed quickly, the vehicle may speed up and slow down erratically |
"Pass" condition detected and then the ignition switch turned OFF |
| P0327, P0328, P0332 and P0333 | Maximum ignition timing retardation | Ignition switch OFF |
| P0351, P0352, P0353, P0354, P0355, P0356, P0357 and P0358 | Fuel is cut | "Pass" condition detected |
| P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138 | The accelerator pedal position sensor has two (main and sub) sensor circuits If a malfunction occurs in either of the sensor circuits, the ECM detects the abnormal signal voltage difference between the two sensor circuits and switches to limp mode In limp mode, the functioning circuit is used to calculate the accelerator pedal opening angle to allow the vehicle to continue driving If both circuits malfunction, the ECM regards the opening angle of the accelerator pedal to be fully closed In this case, the throttle valve will remain closed as if the engine is idling | "Pass" condition detected and then the ignition switch turned OFF |
| P2440 and P1441 and/or P1444 | Restrict the throttle opening angle Ga <= 30 g/sec | "Pass" condition detected |
| P1441 and P1444 | Restrict the throttle opening angle Ga <= 50 g/sec | "Pass" condition detected |
| P1441 and P1444 | Restrict the throttle opening angle Ga <= 100 g/sec | "Pass" condition detected |
| P2430, P2431, P2432 and P2433 | Restrict the throttle opening angle Ga <= 50 g/sec | "Pass" condition detected |