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Toyota Corolla Repair Manual: Oxygen sensor heater control circuit...

Toyota Corolla Repair Manual / Diagnostics / Sfi system / Oxygen sensor heater control circuit...

Dtc p0031 oxygen sensor heater control circuit low (bank 1 sensor 1)

Dtc p0032 oxygen sensor heater control circuit high (bank 1 sensor 1)

Dtc p0037 oxygen sensor heater control circuit low (bank 1 sensor 2)

Dtc p0038 oxygen sensor heater control circuit high (bank 1 sensor 2)

Inspection procedure
Hint: read freeze frame data using the handheld tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is usefu ...

Circuit description
Refer to dtc p0130 Hint: the ecm provides a pulse width modulated control circuit to adjust current through the heater. The heated oxygen sensor heater circuit uses a relay on the b+ side of the ...

Other materials:

Registering a new contact to the contact list
New contact data can be registered. Up to 4 numbers per person can be registered. For PBAP compatible Bluetooth phones, this function is available when Automatic Contact/History Transfer is set to off. 1 Select New Contact. 2 Enter the name and select OK. 3 Enter the phone number and s ...

Circuit description
The intake air temperature (iat) sensor, mounted on the mass air flow (maf) sensor, monitors the intake air temperature. The iat sensor has a thermistor that varies its resistance depending on the temperature of the intake air. When the air temperature is low, the resistance in the thermisto ...

How to use this manual
1. Body panel replacement in this manual 2. Symbols 3. Illustration of weld point symbols ...

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