Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2009CANYON 4D PICKUP, 2.9 9REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 37 (ANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0191CONDITIONS FOR SETTING THE DTC
2009 GMC Canyon 4D Pickup, 2.9 9
Conditions for Setting the DTC
2009 GMC Canyon 4D Pickup, 2.9 9SECTION Conditions for Setting the DTC
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- The 12-volt reference to the longitudinal accelerometer is less than 11.4 volts or greater than 12.6 volts.
- The longitudinal accelerometer output is greater than 1.5 g or less than -1.5 g for 1.2 seconds.
- The longitudinal accelerometer output is greater than 1.5 g or less than -1.5 g for 7200 ms periods during the same ignition cycle.
- The longitudinal accelerometer output does not change when the vehicle decelerates from 30 km/h (19 mph) to 0 km/h. If the condition occurs 16 consecutive times, the DTC is set.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.