Engine Control System - SFI System

4GR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0607: Control Module Performance

DTC P0607 - Control Module Performance

DESCRIPTION

The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM functioning properly. If output from the CPUs are different and deviate from the standards, the ECM will illuminate the MIL and set a DTC immediately.
The ECM also monitors the cruise control cancel circuit. If this circuit malfunctions, the ECM will set a DTC immediately (MIL is not illuminated).






MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC
(a) Clear DTC DTC Check / Clear.
(b) Turn the engine switch Off.
(c) Disconnect the battery negative terminal and wait for 1 minute.
(d) Connect the battery negative terminal.
(e) Turn the engine switch On (IG).
(f) Check DTC.
OK:
P0607 is not present.
NG -- REPLACE ECM
OK -- CHECK FOR INTERMITTENT PROBLEMS