Test Description

The numbers below refers to the step numbers in the diagnostic procedures.

1. 5 -  This step will determine if the Manifold Absolute Pressure (MAP) sensor voltage is within the proper range at idle.
2. 6 -  This step will determine if the MAP sensor responds properly to the change in manifold pressure.
3. 7 -  A throttle blade that sticks or binds may set this code. Opening the throttle through the entire range will indicate problems such as these.
4. 9 -  When the PCM detects a condition within the ETC system, other DTCs may set due to the many redundant tests run continuously on this system. Locating and repairing one individual condition may correct more than one DTC. Keep this in mind when reviewing captured DTC info.