Gen 5 Camaro ABS Hub reluctor teeth count - LS1TECH

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Gen 5 Camaro ABS Hub reluctor teeth count

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Old 10-16-2010, 07:56 PM   #1
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Default Gen 5 Camaro ABS Hub reluctor teeth count

Has anyone looked at or counted the number of teeth on the reluctors embedded in a 2010 Camaro, or 2008 to 2010 Cadillac CTS front and rear wheel bearing hubs? I am thinking of using a 2010 Camaro SS ABS system in the car engine swap I am working on and need to determine how many pulses there are per wheel revolution so I can make a comparison to what is presently existing on the car.

Last edited by tijoe; 10-16-2010 at 07:57 PM. Reason: left out word
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Old 10-16-2010, 10:37 PM   #2
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not sure on the count,, but just so you know these newer gm abs sensors do not produce the same type of signal that the older magnetic pick-up coil type sensors:

The EBCM sends a 12 V reference voltage to each wheel speed sensor. As the wheel spins, the wheel speed sensor produces an alternating current square wave signal. The EBCM uses the frequency of the square wave signal to calculate the wheel speed.
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Old 10-17-2010, 08:45 PM   #3
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Thanks for the response. There is not much published out there regarding the newer sensors and reluctors. I have found out that the splined hubs on the 2010 Camaros are the same P/N front and rear These hubs/ABS system were first used on the Cadillac CTS in 2008. (Timken P/N HA590260, SKF BR930674)

There is nothing in the 2010 Camaro manuals regarding theory of operation for the wheel speed sensors and reluctors. (Ring Tones)

It sounds like the Camaro is using a Hall Effect WSS system rather than the the typical magnetic pulse. Hmmm...
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Old 10-20-2010, 02:05 PM   #4
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For future reference, here is some more information on the ABS hubs used on 2010 Camaros and 2008 on, Cadillac CTSs. (GMPD P/N 13500401, Timken P/N HA590260, SKF P/N BR930674)

- Gm uses an inductive pickup sensor (2-wire), rather than a Hall Effect sensor. (3-wire). The sensor is aligned through the knuckle to the back of the hub. The hub assembly has a magnetic seal encoder pressed into the back of the hub assembly that serves as both the bearing seal and a magnetic reluctor. Nobody I've spoken with at several hub manufacturers, knows what the number of magnets/poles is in the seal. I'll have to get a scope and count them myself.

The joys of evolving and ever changing technology...
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