What is the appropriate action if traction control will not turn off during an ASM5015 test?

In the context of the ASM5015 emissions test, if traction control cannot be turned off, it is crucial to take the appropriate steps to ensure the test can be completed accurately. Performing a two-speed idle test is the correct action because this type of test does not rely on the vehicle's traction control system. The ASM5015 test typically involves rolling the vehicle on a dynamometer, which requires the traction control system to be disabled to ensure that the vehicle's wheels can spin freely and produce accurate emissions readings.

If traction control remains active, it could affect the vehicle's ability to test under the specified conditions, potentially yielding unreliable results. The two-speed idle test, on the other hand, evaluates emissions while the vehicle is stationary and revved at two different RPM levels, circumventing the issue with traction control altogether. By opting for this alternative testing method, you ensure compliance with testing protocols and that accurate emissions data can still be obtained.