1. Disconnect wire connectors at warm-up regulator.
2. Disconnect electrical connector at air flow sensor. Turn on ignition.
3. Check power supply with voltmeter at disconnected plug. Voltage min. 11.5 V.
Printed in Germany Removing and Installing Warm-Up 25 - 21
Regulator - Checking Warm-Up Regulator
4. Check heating coil, resistance of heating coil approx. 20 Ohm.
If heating coil has open circuit, replace warm-up regulator.
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