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#1
04-05-2018, 11:42 AM
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Does the ABS Module do a Cold Check
Swapped Offending Sensor per Autologic No change in Trifecta ABS sent for rebuild Rebuild Installed Cold Start - No trifecta. 3 minute drive for test. Grab Coffee. Warm Start. No trifecta. 3 minute drive home. Today right off a cold start. Trifecta. 3 Minute Drive. Idle. Ignition Off. Ignition On - Trifecta. Idle Ignition Off Ignition On - No Trifecta. Drive off, ignition off/on no more Trifecta. I guess I'm going to observer more and take it from there. Don't have diag tools so I if the tri-fecta persist, going to need to have the indy run a scan for me Last edited by jsoto; 04-05-2018 at 11:47 AM. 
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#2
04-05-2018, 07:00 PM
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Does the ABS Module do a Cold Check
When I've had intermittent trifecta (orange brake not red), it's ended up being a loose abs sensor or voltage fluctuations.
Use the hidden menu to verify voltage never drops below 13v
__________________
2011 E70 • N55 (me) 2012 E70 • N63 (wife)
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#3
04-06-2018, 10:19 AM
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check your battery voltage at the under hood points, and at the battery.
Tests COLD - engine off after overnight Engine at idle Engine at 1500 RPMs Engine at 2500 RPMs Report back
__________________
 2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green
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#5
04-11-2018, 04:37 PM
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Need some brain consensus.
Voltage looks fine. As coincidental as this may sound, the trifecta came up a day right after replacing the front BJ. Not that I can see how that would correlate to the trifecta, just short of the sensor, in which that was changed per the readings given by the Autologic. I presume if it was the SAS, it would show up in the logs. Under test plan diags, the auto eng. should be able to isolate it if it sees issues with data on the yaw sensor ? Me thinks I might have to drop this off to the Indy to have him diag it out Last edited by jsoto; 04-11-2018 at 06:19 PM.
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#6
04-11-2018, 06:49 PM
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Or you could spend the $30 and get your own chinese cable from ebay that usually comes with the software as well.
Best case scenario this is a failed or dirty wheel speed sensor sending implausible data. Worst case its a bad ecu. No way to tell without a proper diagnostic cable.
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