Cautions on chassis dynamometer use

• When inspecting and servicing the power train on the dynamometer or speedometer tester, pay attention to the following:
  • Place a fan, preferably a vehicle-speed proportional type, in front of the vehicle.
  • Make sure the vehicle is in a facility with an exhaust gas ventilation system.
  • Keep the rear bumper cool by placing a cooling fan near the exhaust pipe so that the rear bumper does not get deformed by the heat from the exhaust.
  • Keep the area around the vehicle uncluttered so that heat does not build up.
  • Watch the water temperature gauge and do not overheat the engine.
  • Avoid added load to the engine and maintain normal driving conditions as much as possible.
    NOTE:

    • When only the front or rear wheels are rotated on a chassis dynamometer or equivalent, the DSC HU/CM determines that there is a malfunction in the DSC and illuminates the following lights:
      • ABS warning light
      • Brake system warning light
      • TCS/DSC indicator light
    • If the above lights are illuminated, dismount the vehicle from the chassis dynamometer and switch the ignition off. Then, switch the ignition ON (engine on), run the vehicle at 10 km/h {6.2 mph} or more  and verify that the warning lights go out. In this case, a DTC will be stored in the memory. Clear the DTC from the memory by following the memory clearing procedure [DSC] in the on-board diagnostic system. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)

Cautions for vehicles with Mazda Radar Cruise Control (PRCC) system/Smart Brake Support (SBS) system/Smart City Brake Support (SCBS) system/Distance Recognition Support System (DRSS)