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Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Brakes - Abs With EBD & BD & TRAC & VSC (Diagnostics)) >> DTC C1203/53: Engine Control System Communication Circuit Malfunction >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

The circuit is used to send TRAC & VSC control information from the skid control ECU to the ECM, and engine control information from the ECM to the skid control ECU via the CAN communication system.

DIAGNOSTIC TROUBLE CODE TABLE

DTC No. DTC Detection Condition Trouble Area
C1203/53 Engine drive source and destination variation that are sent from the ECM do not match the one of the ECU. ECM
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