Recent content by CALAN

Does anyone have an old ABS Pump Motor and Actuator Assembly that they have removed from their '97 LX450 and are not going to use and would part with? I would like to do some research on one before I pull mine apart. Thanks in advance!

The best place to start is by using the uploaded diagnostic pages made available by *izzyandsue on page 1 of this thread. That procedure will work for the 1997 LX450. The uploaded pdf wiring diagram supplied later will not work.

Just as a further followup: While checking out the above-mentioned circuitry, I had ordered a spare ABS Relay assembly and decided to take my old one apart just to check out what type of aging and wear I might find on the inside, especially to the relay contacts. I first noticed it was very...

Now that's a possibility I had not considered. I will investigate further. It does have a receiver hitch setup, so that would make sense. No controller is present but it could have been removed prior to my ownership. I had planned on removing the hitch anyway.

Just got this one running, but during the troubleshooting process I had to remove an old PRESTIGE APS-3 security system. This has been over a period of several weeks, waiting for parts, etc., etc.., but today everything came together and so did the Cruiser. As the title indicates, I ended up...

Okay, as a follow-up, you cannot use a 1996 Toyota Land Cruiser ABS wiring diagram verbatim on a 1997 Lexus LX450; there are subtle but confusing differences (such as the ABS connector nomenclature is different). The bottom line is: Get the correct FSM for the variant FJ80 you are working on. It...

Perhaps if your ABS pump motor has seized (code 51) it could be bringing the available battery voltage down, setting off the code 41 which may indicate a low battery condition. Check you voltage available at the battery; if low, pull the 60 amp ABS fuse to confirm and recheck. Or I suppose it...

That was the first thing I checked before anything else. Yes, it has a fluid level switch and the fluid level is at max. However, a defective switch or low fluid level would give an ABS light, but not give a DTC code 51 during diagnostics. That code is reserved for the ABS Pump Motor circuit.

9v transistor battery (assuming that's what you mean) will not stand a chance at moving a motor in a circuit that employs a 60 amp fuse; certainly not with hydraulic pressure to contend with. Those batteries are rated in milliamps. You will need something with the available amps of an automotive...

I would love to see a theory of operation on the ABS system, especially in regard to page DI-224, specifically the Circuit Description, DTC No. 51, Fail Safe Function: "If trouble occurs in the ABS pump motor, the ECU cuts off current to the ABS control (solenoid) relay and prohibits ABS...

I will put that diagram to good use. Thanks again for the help!

Okay, that worked. Getting a fault code 51 so that is the ABS pump motor circuit. Any thoughts on that?

I will investigate further tomorrow and provide an update. Thanks for the information; it will help!

Wouldn't an open sensor send a code, such as a P1569, P1575, P1578, or something else ABS related? I am familiar with the jumper wire procedure but have not tried it yet. I was relying on my scan tool. Will give it a shot tomorrow.

No axle or knuckle work, nor brake service. Again, no fault codes indicating a bad sensor. In fact, no fault codes at all. It's clean.