Question about 2007 Chevrolet TrailBlazer SS
Code read yaw rate circuit malfunction... this was taken at advanced auto parts store
Posted by Anonymous on
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Posted on Jan 02, 2017
More then likely its the Canister Purge Solenoid. you can find it online at www.autozone.com the part number is PV140. And to replace it on blazer you have to remove the spare tire. Alot of people don't know where this part is so I hope this helps you and good luck.
Posted on Oct 14, 2008
"This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake
vacuum to siphon the fuel vapors into the engine."
Hope that helps..
Posted on Mar 25, 2009
most of the time your problem is going to be a bad gas cap if the cap is good check your fuel lines under the vehicle and under hood for a poss fuel leak or smell of gas [vapor]
Posted on Sep 24, 2009
your underhood fuse block contains a fuse for the cigar lighter. this also powers the scan tool make sure it is not blown. chk pin 5 at data link connector for good ground pin 2 for power
Posted on Nov 15, 2009
Tips for a great answer:
Dec 30, 2016 | 2007 Chevrolet Trailblazer
The ability of the control modules to communicate through the serial data circuit
The identification of any stored diagnostic trouble codes (DTCs) and their status
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
This Is going to be Greek to you probably ! This is where a up scale scan tool is needed , or a factory one ! Your going to need to have vehicle scanned for DTC'S diagnostic trouble codes ! Is the ABS light on as well ?
A sample of DTC'S
DTC C0186 00: Lateral Accelerometer Circuit
DTC C0186 5A: Lateral Accelerometer Circuit Erratic
DTC C0196 00: Yaw Rate Circuit
DTC C0196 5A: Yaw Rate Circuit Erratic
DTC C0252 00: VSES Sensor Uncorrelated
The Vehicle Stability Enhancement System (VSES) is activated by the electronic brake control module (EBCM) and calculates the desired yaw rate and comparing it to the actual yaw rate input. The desired yaw rate is calculated from measured steering wheel position, vehicle speed, and lateral acceleration. The difference between the desired yaw rate and actual yaw rate is the yaw rate error, which is a measurement of oversteer or understeer. If the yaw rate error becomes to large, the EBCM will attempt to correct the vehicles yaw motion by applying differential braking to the left or right front wheel.
This is a problem you should take to the dealer or a ASE certified repair shop ! Or you can try to reset the system by disconnecting the battery cables an touching the cable ends together for 60 seconds ! But if there is a real fault in the system ( bad sensor ) The light will come back on ! Maybe not right away ! A couple of days or weeks etc....
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