C1943

SUSPENSION CONTROL: ACTIVE STABILIZER SUSPENSION SYSTEM: C1943: Front Vehicle Speed Signal
C1943 - Front Vehicle Speed Signal

DESCRIPTION

If the front active stabilizer control ECU receives a wheel speed malfunction signal, DTC C1943 is output. The wheel speed signal is diagnosed by the skid control ECU. If electronically controlled brake system related DTCs are output, perform a diagnosis for those DTCs. If no electronically controlled brake system DTCs are output, there may be a malfunction in the front active stabilizer control ECU.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Turn the power switch OFF.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch ON (READY) and the Techstream on.

(d) Check that electronically controlled brake system DTCs are not output Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC is not output.

NG -- GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Electronically Controlled Brake System

OK -- REPLACE FRONT ACTIVE STABILIZER CONTROL ECU Removal