Dynamometer
When test-running a vehicle on a dynamometer:* Place a fan, preferably a vehicle-speed proportional type, in front of the vehicle.
* Connect an exhaust gas ventilation unit.
* Cool the exhaust pipes with a fan.
* Keep the area around the vehicle uncluttered.
* Watch the water temperature gauge.
Note: When the vehicle is on a chassis roller and only the front wheels rotate, the ABS warning light may illuminate. See FUNDAMENTAL PROCEDURES, to turnoff the warning light. Disconnection of the Negative Battery Cable