Speedometer/Odometer Not Working + Related Warning Lights (P0500) - Page 7 - Toyota 4Runner Forum

Madarasskishbosh · 02-25-2023, 12:25 PM

Quote:

Originally Posted by skcolb

Edit: For anybody reading this in the future, this specific problem and solution applies to 2001 and 2002 4Runners and is resolved by replacing the ABS/TRC/VSC module (P/N 89540-35270). Read below and this post for more details.

Sorry for the wordy post, writing this up to both consult the 3rd Gen Brain Trust and also record the troubleshooting and hopefully resolution of this problem.

This afternoon I was driving up to central California at freeway speeds (65-70mph) when all of a sudden I heard a click sound, the speedometer went to 0, and a bunch of warning lights came on. (None were on before this.)

(!) BRAKE
VSC OFF
VSC TRAC
ABS

I still had full control of the throttle so I drove in the slow lane to the next exit to try to figure out what was going on. During that short drive I noticed that the odometer was no longer working, which got me thinking that this was a wheel speed sensor issue....

Once parked, I tried the simplest fix (off and on), no dice. Looked at all the fuses in the driver footwell and the relevant ones in the hood box, all good. The Owner's Manual didn't have anything useful to say except of course to contact the dealer. Eventually I reasoned that it was safe for both the vehicle and me to continue, and to just be mindful that I didn't have ABS.

After taking off, the Check Engine light also came on after a mile or so.

On the way back, I noticed a couple times (could have happened more times unnoticed) that the slip indicator light to the left of the coolant temperature gauge flashed on, accompanied by a brief jump of the speedometer needle. It made it to maybe 20mph and the whole event was less than a second. No action from the throttle or brakes, and no buzzer noise.

Anyway I made it to where I was going and read the codes out. The code is P0500 which is "Vehicle Speed Sensor Malfunction." I'm starting to dig through forum topics and the Factory Service Manual and it looks like I'm in for a fun holiday weekend.

The symptoms are almost identical to this posting on ToyotaNation which sounds like an expensive replacement job. Yikes.
Speedometer and Odometer not working - Toyota Nation Forum : Toyota Car and Truck Forums

Collection of other relevant links:
02 ckengine, brake, abs, vsc trac indicators on - Toyota Nation Forum : Toyota Car and Truck Forums
Please help quick P0500 code question - Toyota 4Runner Forum - Largest 4Runner Forum
another p0500 issue - Toyota 4Runner Forum - Largest 4Runner Forum
P0500 - Can't clear the code
Cel p0500 - YotaTech Forums
speedometer and odometer not working.
http://www.toyota-4runner.org/proble...ml#post1864894
any 01-02 guys replace their skid control modules yet?
ABS-TRC-VSC control module 89540-35270
VSC off, VTC off, ABS and brake lights all on

Attached pic is of the instrument panel after I got home. Hit the cruise button because hey, it's Christmas gotta turn on all the lights.

Hey everyone,

Recently replaced the Skid Control ECU on mine. Almost all the lights went off except the VSC OFF and VSC TRAC light. I drove around more than ten miles and they still remained on. Performed a zero point calibration and got rid of those. However, there is still a brake buzzer coming from the ABS Control Module. Is there any other way I can reset this since the zero point calibration didn’t. Did anyone of you all also experience the brake buzzer along with the other symptoms of a bad ECU?

Madarasskishbosh · 02-25-2023, 12:30 PM

Hey,
I replaced the Skid Control ECU and my vehicle is functioning properly; all the warning light are off and both speedo and odo are working. That brake buzzer still remains though. I did perform a zero point calibration to get rid of both VSC lights so that should have reseted the buzzer right? What’s my next procedure if that didn’t work? There are no warning lights on the cluster.

Turd Fergueson · 04-10-2023, 12:00 AM

As a newbie here had to thank you for solving this problem for me . And showing the work in between that I got to avoid.

RodrickHeffley · 04-10-2023, 12:07 AM

Quote:

Originally Posted by Turd Fergueson

As a newbie here had to thank you for solving this problem for me . And showing the work in between that I got to avoid.

Completely off topic but I love that SNL skit and that name.
RIP Norm McDonald

96RedRunner · 04-10-2023, 03:35 PM

@Madarasskishbosh
There are two procedures that need to be performed from time to time.
Check post #9 deceleration sensor calibration.

01-02 4Runner How to Zero Point Calibrate your VSC system. - YotaTech Forums

FarmerPete · 06-02-2023, 11:01 AM

Quote:

Originally Posted by skcolb

Finally scored a ABS/TRC/VSC module (P/N 89540-35270) on eBay for a decent price ($119 shipped). It was from a rollover and had some surface rust, see below. For anybody looking for these, on junkyard search engines they are listed as "Computer Box Not Engine" and go for around $200-300. On eBay the Buy It Now listings are usually $240-300.

Bolted it in and hooked up all the harnessing, and all the lights went off except Check Engine, VSC OFF, and VSC TRAC. Drove it around the block to confirm that the speedometer and odometer were working again. I then used my OBDLink MX and my phone to clear the codes, and all the lights were off. I was a little surprised that the VSC lights went off because I thought I might have to recalibrate the vehicle yaw sensor with this new module, but apparently not.

Anyway, figured I'd update this with the resolution for anybody who has this issue in the future. I might tear open the old module later to see if I can figure out what went bad with it.

Hello everyone. I have 2002 with the same issue (speedo not working, check engine light, various brake and stability control lights). I purchased a used module (part no 89540-35270) and installed it. The speedo worked and check engine light went off, for about 1/4 mile. Then the speedo stopped working again and CEL came back on. I assume that either (i) the used module I bought was bad, or (ii) something else is causing the issue. Any thoughts?

heat · 06-02-2023, 12:19 PM

Pulled codes to see what the CEL is about?

FarmerPete · 06-02-2023, 08:07 PM

The only code is P0500.

heat · 06-02-2023, 09:53 PM

Might wanna follow up on that.

What are the Possible Causes of the Code P0500 Toyota?
Faulty Vehicle Speed Sensor
Vehicle speed sensor harness or connectors is open or shorted
Vehicle speed sensor circuit poor electrical connection
Faulty Combination Meter Assembly
Faulty Engine Control Module (ECM)

96RedRunner · 06-03-2023, 09:58 AM

Quote:

Originally Posted by FarmerPete

Any thoughts?

Your first with 01-02 Brake Sys?
Trac module part number same as was in use? 89540-35270 is for 16" wheels as built other is for 15" wheels.
Could of received a bad one contact seller ASAP.
Fixed same problem on a as is 01 purchase simple plug n play module swap in the end.
New to me brake system FSM troubleshooting flow chart layed it out (P0500) is the generic CEL.

brillo_76 · 06-03-2023, 10:37 AM

I didn't think they did any 15 inch wheels on the 01 and 02. Just like no manuals, no 4 cylinder. With everything 2 cat California's emmisions too.

Sent from my SM-A536V using Tapatalk

96RedRunner · 06-03-2023, 01:12 PM

@brillo_76 Details Description - 2001-2002 Toyota 4Runner Control Module 89540-35260 | Toyota Parts Center
01 Base & SR5, 02 SR5.

brillo_76 · 06-03-2023, 01:53 PM

Quote:

Originally Posted by 96RedRunner

@brillo_76 Details Description - 2001-2002 Toyota 4Runner Control Module 89540-35260 | Toyota Parts Center
01 Base & SR5, 02 SR5.

Says without 16 inch. Ok. I be wrong...

Sent from my SM-A536V using Tapatalk

96RedRunner · 06-04-2023, 01:01 AM

@brillo_76 not wrong just unknowing.
When I needed a module I was running across 15" @ $60 looking local, 16" web price +-$300
wondered what difference was.

FarmerPete · 06-11-2023, 07:36 PM

So it appears the used module I got was bad. I bought another one on EBay, and now the check engine light is off, the speedo works, and no codes. That’s the good news. The bad news is that the ABS, brake, and VSC lights are still on. Any suggestions?

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