P0606

CIRCUIT DESCRIPTION
The Engine Control Module (ECM) performs internal tests on the microprocessor and some specific data coming into the processor.

CONDITIONS FOR RUNNING THE DTC
The engine speed must be more than 1,120 RPM.

CONDITIONS FOR SETTING THE DTC
The ECM determines that an internal data test did not pass.

ACTION TAKEN WHEN THE DTC SETS
^ The control module illuminates the Malfunction Indicator Lamp (MIL) when the diagnostic runs and fails.
^ The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.

CONDITIONS FOR CLEARING THE MIL/DTC
^ The control module turns OFF the Malfunction Indicator Lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
^ A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
^ A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
^ Use a scan tool in order to clear the MIL and the DTC.

TEST DESCRIPTION

Steps 1-5:

The number below refers to the step number on the diagnostic table.
2. Diagnose any other stored Diagnostic Trouble Codes (DTCs) prior to diagnosing DTC P0606. The DTCs for the Throttle Position (TP) sensor and other sensors may cause the ECM to set a DTC P0606.