P1554

DTC P1554

CIRCUIT DESCRIPTION
The PCM inhibits cruise control operation when certain conditions are detected.

The PCM removes the ground from the cruise control inhibit signal circuit in order to disengage cruise control operation. The cruise control module monitors the cruise control inhibit signal circuit in order to determine when to inhibit cruise.

When the cruise control module (CCM) activates cruise control operation, the CCM provides a ground for the cruise control engaged signal circuit. The PCM monitors the cruise control engaged signal circuit in order to determine that cruise control is engaged.

CONDITIONS FOR RUNNING THE DTC
The PCM inhibits cruise control operation by removing the ground from the cruise control inhibit signal circuit.

CONDITIONS FOR SETTING THE DTC
- The PCM detects a cruise control engaged signal from the cruise control module while inhibiting cruise control operation.
- The above condition is present for more than 1 second.

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

CONDITIONS FOR CLEARING THE MIL/DTC
- The DTC becomes history when the conditions for setting the DTC are no longer present.
- The history DTC clears after 40 warm-up cycles.
- The PCM receives a clear code command from the scan tool.

TEST

Steps 1-9: