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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 216 (Cruise Control System) >> Diagnostic Tests >> DTC P1566/54: Input Signal Circuit Abnormal >> Diagnostic Procedure
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Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

Check and replace the ECM. For replacement, see ENGINE CONTROL MODULE (ECM)  under REMOVAL & INSTALLATION.

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