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VSC, check engine light and traction

Tiny
NASER NASER
  • MEMBER
  • 2008 TOYOTA TUNDRA
  • V8
  • 2WD
  • AUTOMATIC
  • 268,000 MILES
4.7L, , engine and transmission still great, all these lights were on, but the VSC flashes. If I check the engine codes I get these 2 for the secondary air pump which is common on these and vehicles. You delete them and come back immediately. VSC/ABS codes only c1201 which am sure you are aware are common to Lexus and Toyota. I delete them all ad engine codes and drive for half a mile and all lights stay if then I get yoke and park it and they come back. Front brakes were shimming so bad so replaced rotors and brakes. Tear are also bad on metal so am replacing them as well. All ABS sensors are reading okay when driving. Am trying to figure out why these lights keep coming on with no specific codes. Even the secondary air codes should go away and engine light stay off for a while but it doesn't. Where is the secondary pump, maybe someone unplugged a wire or a hose or there is a tear or an issue in the harness? Any suggestions appreciated.
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Sunday, April 26th, 2020 AT 11:31 AM

18 Replies

Tiny
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  • MEMBER
  • 836 POSTS
Checked the 7.5amp fuse for the ECU and is okay. Removed the black connector which has to do with the p0418 and it had water in it and one of the pins was corroded, not sure how, cleaned it and reset the codes after disconnecting the battery same thing.
This is the black connector with blue wire coming out:
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Sunday, April 26th, 2020 AT 12:54 PM
Tiny
KEN L
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  • 43,072 POSTS
Hello,

This sounds like the PCM is going out. To be confirm lets do a CAN scan which is the future of automotive repair you can get a CAN scanner from Amazon for about $50.00. here is a video to show you how:

https://youtu.be/InIlnsjOVFA

In the diagrams below are the instructions on how to replace the PCM. when getting a rebuilt unit please give your VIN number so it can be programmed. Check out the diagrams (below). Please let us know what happens.

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Monday, April 27th, 2020 AT 10:51 AM
Tiny
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You don't think I can get that scan using my autel MD805, launch x431 pro3 or maxisys pro?
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Monday, April 27th, 2020 AT 10:58 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
Yes, you should be able to do the CAN scan if there is an option for it.
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Monday, April 27th, 2020 AT 11:18 AM
Tiny
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Strange am not seeing it with any of the scanners. I remember seeing it while testing other cars. Is it only a CAN specific scanner? I see tons of scanners on amazon, can you point to one that can do the job?
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Monday, April 27th, 2020 AT 6:14 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
Here is a CAN scanner for $39.00:

https://www.amazon.com/gp/product/B007XE8C74/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2carprcom-20&creative=9325&linkCode=as2&creativeASIN=B007XE8C74&linkId=737f5d5f65f3b9c55f0d80bbf3330f79

Please let us know what happens.
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Tuesday, April 28th, 2020 AT 11:12 AM
Tiny
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Thanks. Weird that none of mine can't. What is it usually under as far as menu goes?
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Tuesday, April 28th, 2020 AT 11:22 AM
Tiny
KEN L
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  • 43,072 POSTS
All scanners are a little different just run through the prompt option if it can do the scan it will be in there.
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Tuesday, April 28th, 2020 AT 11:23 AM
Tiny
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I have the scanner now so it has options for obd/eobd like my other scanners to read codes and ready test option, set up, and about. How do I go about doing a CAN scan?
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Thursday, April 30th, 2020 AT 12:25 PM
Tiny
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Can std fast under eobd, and codes are same p2437.
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Thursday, April 30th, 2020 AT 12:27 PM
Tiny
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Are you able to help with the CAN scan using the scanner you referred me to?
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Sunday, May 3rd, 2020 AT 6:27 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Yes, you need a CAN scanner if you need to fix today's cars. This is the one our shop just got:

https://www.amazon.com/gp/product/B0744B55QV/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2carprcom-20&creative=9325&linkCode=as2&creativeASIN=B0744B55QV&linkId=943baa8070e76b0b21ef5c992cd0a3cc

Its too much for some but needed if you are going to see whats going on quickly. Let me know.
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Sunday, May 3rd, 2020 AT 12:17 PM
Tiny
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But, I thought the one you recommended from Amazon does can? I have a maxi sys pro3 similar to the one you just sent me, but where is the option to do a CAN system located?
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Sunday, May 3rd, 2020 AT 12:36 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
Yes it does, it says so in the description which will be fine, I was just saying if you are a shop the better one will do more.
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Sunday, May 3rd, 2020 AT 12:40 PM
Tiny
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But, the Amazon one doesn't do CAN, I have the scanner now so it has options for obd/eobd like my other scanners to read codes and ready test option, set up, and about. How do I go about doing a CAN scan?
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Sunday, May 3rd, 2020 AT 12:41 PM
Tiny
KEN L
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Please watch the video.
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Sunday, May 3rd, 2020 AT 2:09 PM
Tiny
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Never mind. All it is is a "scan of everything" which any of the scanners I have can do. It doesn't say CAN scan anywhere in the video, just a full scan, which I could have done with any of the scanners I have instead of wasting my money on the one you suggested, which does not do anything special but give me 2 codes and nothing else, while my other scanners if you have said "scan all" I could have done. I asked you repeatedly where in any if the menu options will it say CAN and you never replied. I wasted $40.00 on this scanner for nothing.
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Sunday, May 3rd, 2020 AT 2:35 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Scan all and CAN are the same thing, sorry for the misunderstanding please send the scanner back and get your money back.
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Monday, May 4th, 2020 AT 11:26 AM

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