Slip Indicator and Check Engine light - Page 2 - Toyota Nation Forum : Toyota Car and Truck Forums
2nd Generation (2005+) Discussion area for the 2nd generation of the Toyota Tacoma

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#16 Old 03-27-2012, 04:42 PM
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I have an '06, so I do not have a slip indicator light, however, the CEL coming on means that a code has been set by the ECU. You need to get a readout to see what code(s) have been set to get a better idea of what might be happening in your instance.

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#17 Old 03-27-2012, 07:02 PM
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According to your manual:
Slip indicator
The indicator comes on to indicate a malfunction in:
The VSC;
The TRAC;
The active traction control system (if equipped);
The AUTO LSD system;
The downhill assist control system (if equipped); or
The hill-start assist control system (if equipped).

Reading about some other Toyota vehicles indicates ABS sensors may have been disturbed. Seems likely based on the items above.

The 05 manual suggests Master Brake Cylinder might be at fault.

Get someone to check the CEL code, and go from there.

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#18 Old 03-27-2012, 07:57 PM
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Quote:
Originally Posted by RTFM View Post
According to your manual:
Slip indicator
The indicator comes on to indicate a malfunction in:
The VSC;
The TRAC;
The active traction control system (if equipped);
The AUTO LSD system;
The downhill assist control system (if equipped); or
The hill-start assist control system (if equipped).

Reading about some other Toyota vehicles indicates ABS sensors may have been disturbed. Seems likely based on the items above.

The 05 manual suggests Master Brake Cylinder might be at fault.

Get someone to check the CEL code, and go from there.
Of course, I think that's all bullshit (not you RTFM, the manual). I bet if you look up the VSC indicator light, it would say it comes on if there's a problem with the VSC components. But on the 1st Gen Highlanders, many things that trigger the CEL will trigger the VSC light too. Our '05 HL had a sensor wire on the exhaust bumped when being serviced which triggered the CEL and VSC lights. Searches on the internet confirmed what the dealer told me that the VSC will come on any time the CEL comes on for an emissions sensor like that (it was actually a big problem because people would go over something on the road which would kick up and bump the sensor in turn triggering the CEL and VSC lights). Anyway, I bet there's a specific (or a few types of faults) that automatically trigger the slip indicator light when the CEL is triggered. Because of that, I would only research the code that the CEL triggers and ignore the other one (since it's probably a secondary reaction to the first). Just my .02 (and I could be wrong in this case).


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#19 Old 03-27-2012, 09:21 PM
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Quote:
Originally Posted by 05Moose View Post
Of course, I think that's all bullshit (not you RTFM, the manual). I bet if you look up the VSC indicator light, it would say it comes on if there's a problem with the VSC components.
Moose

I don't doubt you on both counts actually......

My (like yours) is ignore the Slip light, and look at the code. In some places in the FSM, I have seen references to lights plus CEL, giving you a better clue, but nothing on this pairing so far.


Most of the indicator lights in the manual gives overly broad BS answers

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#20 Old 03-28-2012, 10:57 AM
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The slip indicator will usually be associated with a code, but it might be a C-code (chassis) rather than a P-code (powertrain) so make sure whatever code reader you are using can read those.
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#21 Old 05-25-2012, 07:29 AM
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My CEL and VSC came on after messing around with some connectors by the drivers side kick panel trying to find the reverse light wire for a back-up camera on my 2010. I assume since the codes are now stored in the computer the only way to clear them is with an OBD II diagnostic tool. Someone mentioned try disconnecting the battery, but I think since they are already stored, disconnecting the battery will not do anything. I guess I will be making a trip to Advance Auto to borrow their OBD II tool again.
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#22 Old 05-25-2012, 01:27 PM
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I did not have to do anything. Got in the truck this morning and both lights are off now.
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#23 Old 05-25-2012, 10:46 PM
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Quote:
Originally Posted by Tacoman82 View Post
Hello, I am new to TN and normally post on TacomaWorld. I have a similar issue, in that, the engine check and slip indicator lights are on. I know the problem with the engine check light has to do with evap and is related to an issue with my gas cap. Does anyone know why the slip indicator would come on along with the engine check light. I clear the codes and that lasts 3-4 days and the lights come back on simultaneously. It occurred initially while driving in a heavy downpour near my home in Austin, Tx.

Can't tell you why Toyota as both lights come on, but I can tell you that if you fix the problem your already know about and have ignored...... it would fix both your lights.

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