P32 AUTO PARK BRAKE

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P32 AUTO PARK BRAKE

Home > Discussion Forum > Mechanic's Corner - Brakes

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All Messages in Thread	Author	Date
P32 AUTO PARK BRAKE	Ben Bibb	9-8-07
AUTO PARKED – Please help. 2002 R-Vision Condor, 8.1 Vortec engine. Auto Park system uses Relay Logic, not the TYCO ECM module. I am at home 130 miles from my M/H facing the unnecessary cost of dropping the drive shaft and towing – somewhere I can pay the mechanic to learn about this system. PROBLEM: Fuse 11 (15A fuse in Chassis Fuse Block at drivers left knee) blows the instant ignition is turned on. Brake buzzer sounds for 5 seconds then goes off. Brake Warning light stays on. Yellow Pull to Apply Switch does nothing. Gear selector will not shift the transmission into any gear. With the engine running and shifting through the gears, the vehicle will not move. WHAT I KNOW: The pump motor runs when I remove connector and apply 12 V to the motor. The D-III reservoir looks low to me, about 1/2 full – I see no full mark. The W/H Chassis Guide does not reflect this model accurately. The electrical information is incomplete at best. I clearly understand the concept and intent of this ‘safety’ system. It is rather simple in concept, obtuse in mechanization. MY DELEMA: As a retired EE and a Ham Radio operator for over 50 years I am baffled by the locations of components and routing of wiring. I cannot find the physical location of the ‘Park/Neutral Position Relay’ although W/H assures me it is on the wall left of the left valve cover. I see no frayed or burnt wiring and with 36K miles on the odometer it is not dirty. MY QUESTION: If I can find this actuator emergency ‘pin’ and remove it, will some sensor in or around the actuator tell the transmission all is well? I understand why the normal transmission Park Pall is not present. If releasing the actuator by removing the pin will not restore gear shifting, what will? I will post an accurate schematic and part location for this model on my website when my M/H comes back home. Thanks in advance, Ben, NO5K ben@4x4nmore.com
Re: P32 AUTO PARK BRAKE	Ben Bibb	9-11-07
Thanks rich. All fixed now. Are you a Workhorse Technician? Ben
Re: P32 AUTO PARK BRAKE	rich	9-11-07
First off fill the tank with dextron 3 trans fluid shifter actuator on steering colume is operated by brake padal switch,Yes they stick GM knows that- rich
Re: P32 AUTO PARK BRAKE	rich	9-11-07
Hello Ben; not a tech---but fixed a lot of them---I have a Bounder---it's leaked out twice and fixed many via the net --i have all the diagrams and part no.'s the green switch is the one that normally leaks the oil out GM part no. 15961566 cost close to $50.oo rich
Re: P32 AUTO PARK BRAKE	Bob Bender	10-3-07
Maybe a bit late with this but, I hope it helps you or someone else. My sister and brother-in-law have a 2002 Condor also. They had the same problem with the Autopark brake not releasing. I know you were told the Autopark relay was on the left wall of the engine compartment. If you were looking for some kind of panel or box you'd be out of luck, same as me. If you look forward, to the left of the valve cover (under the inside engine cover), there is a wire loom running vertically just within reach. I found the relay on the end of a set of 4 wires TAPED to the wire loom. Its a pretty very small relay but it will probably be taped to the plug on the end of those 4 wires. It looks like it was added as an afterthought. I simply untaped it, unplugged the relay and used some emery cloth to clean the contacts (they were extremely corroded as it hangs out in the open to water and road grime), sprayed some electric motor cleaner (with corrosion preventative) in the female receptacle. Plugged it back in, reinstalled the pin in the parking brake and no more problems. I also taped a plastic bag over the relay to prevent further problems. A friend of mine in Colorado who has 3 RV dealerships said they used to rent rent out a ton of Condors and that was very common problem.
Re: P32 AUTO PARK BRAKE	Troy	1-12-08
I have a 99 Georgetown with 454 chevy, on a recent trip to Florida the autopark leaked out all fluid and the shoes completely burned out of it. when i put in trans fluid, i here it trying to engaged and disengage. i finally got tired of buying trans fluid and just finished my trip even though i have no park at all. I just chock the wheels everytime i stop. how do i fix this and where do i get parts?
Re: P32 AUTO PARK BRAKE	Al Carbonneau	5-16-08
I would like to know if anyone has a diagram for the p30 Auto brake system with the Electric pump not the power st pump model. Thanks Al
Re: P32 AUTO PARK BRAKE	Keith	10-19-07
2002 Winnebago Brave Workhorse 8.1 I had an auto park problem. I pulled the pin and drove it home. I bought the green, gray switch and the relay. My gray switch located next to the hydrolic pump was busted so I replaced it and everything seemed to work fine until I decided to go on a trip. I went about five miles and the engine (without warning) shut off. I shorted accross the starter solenoid and cranked it back up. Returned home. I am now trying to find the green switch location. I found abrown pressure switch outside of the reservoir. Should it be green? If not where is the green switch and the relay also? Keith
Re: P32 AUTO PARK BRAKE	Ben bibb	10-8-07
Bob Bender, thank you for your most informative reply. Actually my problem was a failed pressure switch at the brake actuator, it shorted to ground blowing F-11. This was an unusual failure however with the technical information supplied by oldusedbear, it took 3 hours to blueprint the entire system and diagnose the problem. - Of course the last thing I checked was the problem. It took an hour to drive into the city for the part and exactly 10 minutes to change it and clean up. It is really a simple system and quite reliable if properly maintained. I do read of many problems with the system however they are mostly exasperated by a lack of familiarity with the vehicle’s systems. I have facilitated repairing two other A/P problems for others since my repair. Thanks again, De NO5K
Re: P32 AUTO PARK BRAKE	Mike Turner	2-3-08
Ric, How can I get a diagram/info on this auto part system for my workhorse 2001 Southwind Chassis?