DTC Detecting Condition and Trouble Area
WARNING: This page is about a different car, the 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTING CONDITION CHART
| DTC detecting condition | Trouble area |
|---|---|
| Circuit voltage of HO2S (bank-1) is within 0.27 V - 0.35 V for more than 120 sec. continuously while A/F (fuel trim) is shifted rich to lean and lean to rich with specified diagnosis frequency under specified running, or circuit voltage of HO2S (bank-1) is out of specified range (0.2 V - 0.45 V) while engine is running with warmed it up from cold start (ECT is less than 40°C). (2 driving cycle detection logic) |
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WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out by 2 persons, a driver and a tester, on a level road.
NOTE:
Check to make sure that following conditions are satisfied when using this "DTC CONFIRMATION PROCEDURE ".
- Engine coolant temperature: 70°C (158°F) or more.
- Engine coolant temperature at engine start: -10°C (14°F) or more.
- Intake air temperature: -10°C (14°F) or more.
- Atmospheric pressure: higher than 75 kPa (560 mmHg) (Altitude: lower than 2790 m (9150 ft).
- The following DTCs are not detected: MAF sensor, ECT sensor, IAT sensor, Fuel system, PCV, A/F sensor, TP sensor, HO2S sensor heater and HO2S sensor (other than DTC P0140).
- With ignition switch turned OFF, connect scan tool.
- Turn ON ignition switch and clear DTC using scan tool.
- Start engine and warm up to normal operating temperature.
- Drive vehicle at 40 mph (60 km/h) or higher. (engine speed: 2500 - 3000 r/min).
- Keep above vehicle speed for 4 min. or more. (Throttle valve opening is kept constant in this step).
- Check if DTC and pending DTC exist by using scan tool. If not, check if oxygen sensor monitoring test has been completed by using scan tool. If not in both of above checks (i.e., no DTC and pending DTC and oxygen sensor monitoring test not completed), check vehicle condition (environmental) and repeat Step 3) through 6).