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Greg, Technician
Category: Car
Satisfied Customers: 7331
Experience:  Automotive diagnostic tech
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mike I have a zafira 1.8 auto 2003 and my traction control

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Hi mike I have a zafira 1.8 auto 2003 and my traction control light is on my dash and won't clear with tech 2 computer loss power and drive in forward gears but reverse is fine no power loss
There is a gear selector module on top of auto gearbox do you think it can be that car run fine yesterday changed coil pack many thanks
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If the TC light is on then with your tech II check for ABS malfunction codes .

The TC light will come on if you have a ABS malfunction code stored .

Also if you have any transmission code malfunctions like a input / output speed sensor the TC will light up and put you into limp mode .

Do a transmission check , fluid condition and level .

Do the checks then please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.

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Kind regards Greg.
Greg, Technician
Category: Car
Satisfied Customers: 7331
Experience: Automotive diagnostic tech
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Customer: replied 3 years ago.

Hi Greg thank you for your answer !

i have no codes stored apart from Tc light on dash only when the starter is cranked Tc light clears when tech 2 erases codes

found timing has slipped by 2 teeth so putting cams out on exhaust sided by 90 degrease

I think this might be proplem ! So fitting new cambelt kit with tensioner

Do you think that is right

Yes this would cause that problem .

After clearing the codes did any come back .

The TC light stays ON with the engine running .

Take it you was experiancing misfires .

Here is a diagram of the timing for you to check ,Just incase you don't have it.?


I would also replace the water pump , the two idle rollers .

Rgds Greg
Customer: replied 3 years ago.

I cleared all codes then started engine and Tc light came back on !

thats why I checked timing as I had slight misfire and found cam out by 2 teeth putting new cambelt kit on tomorrow then clear codes and see if Tc light goes out when running engine

Ok sounds good tome .

Get back and let me know what happens .

Rgds Greg