Transmission warning light on and engine loses power

Tiny
ANDREW HEMETSBERGER
  • MEMBER
  • 2007 SUZUKI SWIFT
  • 1.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 76,300 MILES
Hi everyone,

I am new to this site and created my account just now to see if I can get any support from you.
I have the vehicle listed above, vehicle type DBA-ZC71S with a K12B engine.

I have an issue right now with it where I got the transmission warning light on the dashboard and after a few days, the vehicle could not pick up speed when the the accelerator pedal is depressed. Speed goes to around 40km/h and then the engine just revs past the 2,000 RPM mark without any speed difference.

Took it to the dealer however they do not deal with these type of vehicles (no where else does) and were waiting for support to be provided. They reported to receive the C112 FR RH In ABS SOL error code but doesn't look like that is the issue.

Would anyone know what the issue could be?
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Saturday, July 17th, 2021 AT 2:52 AM

16 Replies

Tiny
SEAN M
  • EXPERT
Hello,

It sounds like your vehicle might be in "limp mode" due to a transmission issue.
Did you have issue with the transmission slipping before this issue?

Here is a helpful article that might point you to the right direction:

https://www.700r4transmissionhq.com/suzuki-swift-transmission-slipping/

If your check engine light on?
Have you had the diagnostics code read on the vehicle?
Here are some helpful tips for a vehicle in limp mode:

https://www.2carpros.com/articles/reduced-power-limp-mode

https://youtu.be/ZY9IOfVDfSI

Let me know of any questions.

Thank you.
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Saturday, July 17th, 2021 AT 12:15 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Hi,

Thank you very much for your response. Had a look at all the links you provided and was useful. Saw the first one before you sent it while searching for answers.

Did not have any issues with transmission slipping before. This is the first time. The transmission warning light came on and then affected the speed of the car.

There is no check engine light on. Only the transmission light is on which is normally off. The fault code received as mentioned was C112 but doesn t look like that s the issue.

The vehicle has a CVT and unsure whether I can check the fluid level. Does say the first thing to check is the level but it does not have a dipstick and because the car is pretty low, difficult to get under to check. Do you think I can be able to check?
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Saturday, July 17th, 2021 AT 3:07 PM
Tiny
SEAN M
  • EXPERT
This CVT does not have a traditional 'dipstick' to check the transmission fluid.
There is a check and fill plug on the side of the transmission. To access that plug you will have to lift the car on a jack/lift then use a special tool to undo the plug and check the level. Usually the fluid should be just below the level of the plug. You should be able to put you finger inside and be able to tell the level.
I have attached diagrams to give you a little better idea.
Let me know if you have any questions.
Thank you.
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Saturday, July 17th, 2021 AT 3:39 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Thank you. Will have a check and see if I can check the level. Did some checks yesterday and did not specifically look for it but did not see this. Will have another look.

Also, the other thing I noted was then when I put the vehicle up on jacks and put it in Drive, only the right hand wheel rotated and not the left (the car is front wheel drive). Would this mean something is wrong with the left wheel not engaging or this is just the differential action where the left had more friction and did not rotate?

Also, read that the C error codes are proprietary and only can be done by the manufacturer. Would you have any Suzuki contacts that can help me?

I am also in Papua New Guinea where getting services is VERY expensive due to lack of expertise, poor quality controls, monopoly, etc. Like there is only 1 reputable dealer for Suzuki in PNG where I took the car in and they do not have the manual for the car and had to send the fault codes they got to their National contact where they have not received anything yet. Been over a week. They even mentioned that the model I have is not found anywhere else in the world except in Japan. They could not even tell me what the level of the transmission was.

So doing my own research as a Mechanical Engineer to understand and fix if I can.

Any help will therefore really help me get this sorted.
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Saturday, July 17th, 2021 AT 4:26 PM
Tiny
SEAN M
  • EXPERT
Hello,

If you are turning the vehicle then the inner wheel on the turn will turn less than the outer, as the outer one has to cover more ground.
Now if only the right wheel turns and not the left regardless of going straight or turn, you might want to look under the vehicle and make sure that the CV axle is connected to the wheel.

https://www.2carpros.com/articles/replace-cv-axle

Let me know what you find out.
Thanks.
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Saturday, July 17th, 2021 AT 5:29 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Thanks for the response. Took off the wheels and had the car on jack stands when I did the test where I saw only the right rotating. However, checked the CV boots which appear ok except the right side show some loss of grease with some sticking on the surface next to it. Did however, rotate both wheels and definitely connected to the axle. Both had the same amount of force required to run it and you could hear the turning in the axle.

I think I need to clear the fault codes except that I do not have a scan tool. And looking online, the best way is to disconnect the battery connections, connect the negative and positive leads while leaving it for 5 minutes and then reconnect and turn on the vehicle.

Will see how I go with that and if the issue still comes up, then there may really be a transmission issue.

Do you know what the C112 FR RH In ABS SOL error code is? And how to fix it?
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Saturday, July 17th, 2021 AT 6:04 PM
Tiny
SEAN M
  • EXPERT
Disconnecting the battery can reset the code, but it does not work for all vehicles as some will require the scan tool.
That C112 code typically points to wheel speed/abs sensor. If you had issue with the CV shaft it can happen or it could be simply for a faulty sensor. Check the sensor on the front right side wheel. Make sure it is connected properly and does not have any damage or loose wires.
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Saturday, July 17th, 2021 AT 6:13 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Okay. Will see how I go with clearing the codes.
Also, did check the right side speed sensor and did not see any issues. Just removed the sensor which appeared to be okay with some metal flakes on the front of the magnet that I wiped away but could not visually see any damage to the wiring. Would be good if I had a multimeter to check it as well.

But do you think that fault would cause the transmission warning light to come on like it is now?
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Saturday, July 17th, 2021 AT 6:18 PM
Tiny
SEAN M
  • EXPERT
Couple of things, if the trouble code gets reset by the battery disconnect, then the light will come on if the issue still exists. If the vehicle control modules do not see any issue then the light will not come back on.
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Saturday, July 17th, 2021 AT 6:34 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Thanks. Doesn t answer my question though. With the transmission light on and having the C112 fault does not make sense. Or does it?

So do you think the C112 fault would cause the transmission light to come on to show something is wrong with the transmission?
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Saturday, July 17th, 2021 AT 7:30 PM
Tiny
SEAN M
  • EXPERT
The wheel speed sensor picks up the rotation of the CV axle, which is driven by the transmission. Good chances that the code got triggered when the sensor read different than the output sensor on the transmission.
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Saturday, July 17th, 2021 AT 7:39 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Did a test on the car just now to see if the left wheel did not rotate because of friction. Below what I did:
1. Jacked up the left front wheel.
2. Put blocks under rear tires to prevent any movement.
3. Switched the car in and out in drive.
4. Checked the left wheel and it was rotating (both in drive and in reverse).
So not an issue with the axle connected to the wheel.
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Saturday, July 17th, 2021 AT 8:35 PM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Also disconnected both the positive and negative terminals of the battery and left if off to around 20 minutes and put it back on, put it to on and still the light came on.
Looks like I need a scanner to clear the code or the issue is still there therefore the light is still on.

Beginning to think there is no issues but then again can't really say. Will have to have another scan of the system and check what the issue is.

Anybody have the service manual for the Swift 2007 ZC71S model? Got one from the internet but does not appear to have everything and not specific.
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Saturday, July 17th, 2021 AT 9:26 PM
Tiny
SEAN M
  • EXPERT
I was hopping you will get lucky and the engine light will reset.
Unfortunately since the 2007 Swift was not offered in the US I am unable to get a owners manual or a repair manual.
I will check with few of my sources to see if I can find a PDF file.

https://www.youtube.com/c/2carpros/featured

Thank you
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Monday, July 19th, 2021 AT 11:58 AM
Tiny
ANDREW HEMETSBERGER
  • MEMBER
Would be great if you can check your contacts and get the manual. Currently looking for someone who has a scanner to use to clear the fault to see if that will fix the issue
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Monday, July 19th, 2021 AT 12:08 PM
Tiny
SEAN M
  • EXPERT
I will see what I can do. I will let you know if I come up with something.
Let me know how clearing the codes go.

Thanks.
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Monday, July 19th, 2021 AT 12:20 PM

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