News Technical Service Bulletins

Cadillac Code Malfunction

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This bulletin applies to 2015-2018 Cadillac Escalade and 2016-2018 CTS-V vehicles. The SES lamp may be on, setting knock sensor DTC P0333 when shifting the transmission from Park. This DTC can be set due to voltage from the transmission park/neutral signal 1 circuit bleeding into the knock sensor system circuits. If routine diagnostics do not isolate the issue, inspect the K20 ECM connector X2, looking for debris, connector and/or terminal concerns.

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