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Home >> Chevrolet >> 2001 >> Impala Base, 3.8 K >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Anti-Lock Brake System With Traction Control System - BOSCH 5.3) >> Diagnostic Tests >> DTC C0235, DTC C0236, DTC C0237 & DTC P1504: TCS Rpm Signal Circuit Malfunction >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2001 Pontiac Grand Prix, 2001 Pontiac Firebird, 2001 Oldsmobile Intrigue, and 2001 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

RPM signal circuit provides EBCM with an indication of engine RPM to help determine TCS control methods and rates when a TCS event takes place.

DTC sets when EBCM does not receive an RPM input signal after one second, after engine has been started.

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