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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki |
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#1
02-27-2013, 12:14 PM
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EWS Anomaly
Regarding my 1998 E39:
On the first drive home from purchasing the car the CEL popped on. Using a PEAKE Research Scan Tool I got the following codes: - E9 - Catalyst efficiency below threshold (the pre cat O2 sensor appears to be bad) - 12 - EWS Signal (passive security system) - 14 - Check Engine Light - Has anybody experienced this EWS Anomaly? According to the book the car should not start, but it starts and runs fine, so... - Why does the engine start? - Why is this code showing up? - Is this what they call a "Phantom or soft code"? I haven't driven it much since resetting the codes so the ECU hasn't cycled enough for me to know if the new AGM battery helped. The old battery was shot and I'm wondering if low voltage from a bad battery can upset the signals going to the module? Thanks, Peter 
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