P1607

DTC P1607

Circuit Description

The engine control module (ECM) continuously monitors its main and sub CPUs for the cruise control. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standards, the ECM will illuminate the MIL and set DTC P1607 immediately.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P1607 ECM Internal Error

Conditions for Running the DTC

The cruise control is in operation.

Conditions for Setting the DTC

An internal error is detected for 0.3 seconds.

Action Taken When the DTC Sets

Cruise control is disabled.

Conditions for Clearing the DTC

The DTC will clear when conditions for setting the DTC have been repaired.