DTC 66 - ABS Motor

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Jul 18, 2007 | 03:41 PM

Pdiminico

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From: Hillsborough NJ

DTC 66 - ABS Motor

Where is the ABS motor located? I know where the pump is located.

Jul 18, 2007 | 05:38 PM

Injuneer

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From: Hell was full so they sent me to NJ

What year, model, engine, etc? For the LT1, for example:

DTC 66 = A/C refrigerant pressure sensor circuit (open or shorted)

Jul 19, 2007 | 07:34 PM

Pdiminico

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From: Hillsborough NJ

Quote:

Originally Posted by Injuneer

What year, model, engine, etc? For the LT1, for example:

DTC 66 = A/C refrigerant pressure sensor circuit (open or shorted)

According to the GM shop manual DTC 66 = Rear ABS motor circuit shorted to battery.

It's a 94 Z28 LT1. My shop pulled the code for me.

Jul 19, 2007 | 10:14 PM

Injuneer

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From: Hell was full so they sent me to NJ

Then you were reading the codes from the EBCM, and not the PCM, correct?

The ABS unit sitting on the drivers side fender includes the ABS solenoid valves, the ABS modulator/motor pack assembly, the brake combination switch and the ABS bleeder valves. The shop manual shows the details.

Last edited by Injuneer; Jul 19, 2007 at 10:21 PM.

Jul 20, 2007 | 08:54 PM

Pdiminico

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From: Hillsborough NJ

Quote:

Originally Posted by Injuneer

You are correct regarding the EBCM. The shop manual does not discuss overhauling or replacing the motor pack. Is it possible to replacing the motor pack instead of the whole unit?