DTC Descriptor
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P0685
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Engine Controls Ignition Relay Control Circuit
- DTC P0686
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Engine Controls Ignition Relay Control Circuit Low Voltage
- DTC P0687
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Engine Controls Ignition Relay Control Circuit High Voltage
- DTC P0689
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Engine Controls Ignition Relay Feedback Circuit Low Voltage
- DTC P0690
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Engine Controls Ignition Relay Feedback Circuit High Voltage