FixVault

DTC C1201/51 Engine Control System Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

If a malfunction in the engine control system is detected, the operations of VSC and TRAC are prohibited by the fail safe function. When the signals from the engine are input normally, the fail safe is cancelled and the DTC is not stored.

DTC DETECTION CONDITION CHART

DTC Code DTC Detection Condition Trouble Area
C1201/51 Engine control system malfunction signal continues for 5 seconds. Engine control system