Fuel quantity controlled by ECM is different as vehicle condition. Therefore, Fuel quantity at idle (Load is not applied) is different from fuel quantity at driving (vehicle speed is input). If Neutral signal is input to ECM by clutch switch (neutral switch) malfunction while driving, Poor power occurs because of lack of fuel quantity.
If poor power occurs, Inspect the gear position (switch signal).
IG KEY "ON", ENGINE "ON"
Connect GDS(scantool) to Data Link Connector (DLC).
Allow the engine to warm up to normal operating temperature.
Electrical system and A/CON "OFF".
Select "Clutch switch (M/T)", "Neutral or 1st gear switch (M/T)", "Brake switch", "Redunat brake switch".
1) Clutch switch (M/T)
☞ A/T vehicle : Shift lever "P", "N" → "ON", shift lever "D", "R" → "OFF"
☞ M/T vehicle : Release the clutch pedal → "OFF", step on the clutch pedal → "ON"
2) Neutral or 1st gear switch (M/T)
☞ A/T vehicle : Always "OFF"
☞ M/T vehicle : "ON ↔ OFF" when shift lever is changed.
3) "Brake switch", "Redunat brake switch"
Release the brake pedal → "OFF", step on the clutch pedal → "ON"
Symptom | Inspection procedure | |
Case1 | ● In case of abnormal "Clutch switch", | ● Repair the trouble causing part refer to DTC troubleshooting procedures "P0830 Clutch pedal switch "A" circuit". |
Case2 | ● In case of abnormal "Neutral or 1st gear switch", | ● Repair the trouble causing part refer to DTC troubleshooting procedures "P0820 Gear lever x-y position sensor circuit". |
Case3 | ● In case of abnormal "Brake switch" or "Redunat brake switch", | ● Repair the trouble causing part refer to DTC troubleshooting procedures "P0504 Brake pedal position A/B correlation". |
