DTC P1607 Cruise Control Input Processor: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly If outputs from the CPUs are different and deviate from the standard, the ECM will illuminate the MIL and set a DTC immediately
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1607 | ECM CPUs malfunction (1 trip detection logic) | ECM |