|
|
EC-830 [QG (WITHOUT EURO-OBD)] HO2S2 HEATER (M/T MODELS) Specification data are reference values and are measured between each terminal and ground. CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam- Diagnostic Procedure EBS00R1S 1. CHECK OVERALL FUNCTION CHECK 1. Start engine and warm it up to the normal operating temperature. 2. Turn ignition switch “OFF” and wait at least 10 seconds. 3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least one minute under no 4. Let engine idle for one minute. 5. Set the voltmeter probe between ECM terminal 2 (HO2S2 heater signal) and ground. 6. Check the voltage under the following conditions. OK or NG OK >> INSPECTION END. NG >> GO TO 2. TER- MINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage) 2 R/B Heated oxygen sensor 2 [Engine is running] ● Engine speed: Below 3,800 rpm after the follow- – Engine: After warming up – Keeping the engine speed between 3,500 and 0 - 1.0V [Ignition switch “ON”] ● Engine stopped [Engine is running] ● Engine speed is above 3,800 rpm. BATTERY VOLTAGE Conditions Voltage At idle 0 - 1V Engine speed is above 3,800 rpm Battery voltage PBIB0673E |