89 560SEL Trouble code on/off ratio

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89 560SEL Trouble code on/off ratio

10-29-2005, 10:42 AM

Mino Erhan Mino Erhan is offline

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Location: Dallas, TX

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89 560SEL Trouble code on/off ratio

I have 30% reading on my '89 560SEL. I know its regarding the coolant temp sensor or wiring. I have replaced sensor, and the resistance values both come to the EZL and ECU, meaning the wiring is ok. But the code still remains.

How do I clear the 30% reading? I have disconnected the ECU, Battery, OVP relay but the I still have the code.

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Mino Erhan Dallas, TX
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