DR-24 Throttle Body Minimum Air Flow

*** UPDATED BY TSB #18-61-86

This test must be performed with engine warm.

1. Connect diagnostic read-out tool to engine harness connector.
2. Start engine and let run until the radiator cooling fan cycles on then off, then enter system into Engine Running Test Mode 70. Display must be multiplied by ten to determine actual reading.
3. If display indicates 700---900 RPM, proceed to Test 25. DR-25 Driveability Problems Not Related to Engine Controls
4. If display does not indicate 700---900 RPM, replace throttle body assembly.