P1585

CIRCUIT DESCRIPTION
The PCM grounds the cruise control inhibit signal circuit when it determines that conditions exist for which cruise could not be enabled. The PCM also monitors the voltage on this circuit in order to determine if a fault exists.

CONDITIONS FOR RUNNING THE DTC
^ The ignition is ON.
^ The system voltage is between 9 volts and 16 volts.

CONDITIONS FOR SETTING THE DTC
^ The PCM detects that an improper voltage exists on the cruise control inhibit signal circuit.
^ The above condition is present for at least 30 seconds.

ACTION TAKEN WHEN THE DTC SETS
^ The PCM does not illuminate the malfunction indicator lamp (MIL).
^ The PCM stores the conditions which were present when the DTC set as Failure Records data only. This information is not stored as Freeze Frame data.

CONDITIONS FOR CLEARING THE MIL/DTC
^ A history DTC clears after 40 malfunction free warm-up cycles.
^ The PCM receives a clear code command from the scan tool.

DIAGNOSTIC AIDS
Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.

TEST

Steps 1-7:

Steps 8-9: