SBMVP16

any info what help, i have a 08 z06 with 3100 miles
driving on sunday the car went in a reduce power mode
message came up service traction system and ck engine lite came on
not blinking steady,so i pull over into a lot shut car off for a couple of minutes and everything was back to normal.anything to look for
going in thursday to my covette guy any info what be great,this is the 4th time this happen since i have the car !!!!!!!!!!
code reads p2138

chrisfromalbany

can't you get a code reader to see what entry was put into the computer for the check engine light?

Bill Dearborn

The CEL is the key and you need to have a code reader that reads both OBD2 and ABS codes to make sure. More than likely the Service Active Handling message was caused by the code that generated the CEL but you can't just guess you have to ensure there is nothing wrong in the ABS system as well. If the message was caused by the code that caused the CEL there will be an ABS code that indicates there has been no ABS system failure and the failure is located elsewhere. This helps the mechanic eliminate searching in the wrong place for the cause of a message.

Bill

SBMVP16

bill
thanks alot code reads p2138

VetteVinnie

That's a throttle sensor error. Check the connections at the throttle body.

P2138 - Accel Pedal Pos (APP) Sensor 1-2 Correlation

Bill Dearborn

I am attaching the diagnostic procedure which has a description of how the circuit works. You will not be able to do the scan tool diagnostics unless you have a Tech 2 but there are other tests in the procedure that you can conduct without a scan tool.

You will need a 10 Meg Ohm input Digital Multimeter to do the tests. Less than 10 Meg Ohms and the meter itself can sometimes affect a circuit and give you an erroneous reading.

Bill

jbs02somws6

I think that was the code I got, but it ended up being the gas pedal being replaced. I had the reduced power message and the car engine would not rev at all. I think I could go 3 milers per hour. Anyway there is a sensor in the gas pedal that went bad.....and at 19k miles.

Chevy Cust Svc

Any progress on this since your last post, SBMVP16? We're here if you have any dealer/recall/warranty related questions, and will help as much as we can if you have other inquiries.

Sarah (Assisting Kelly)
Chevrolet Customer Care