DESCRIPTION This DTC is stored when the vehicle stability control system has a problem. Check the vehicle stability control system when DTC P1578 is stored.
CAUTION / NOTICE / HINT NOTICE: Before replacing the ECM, refer to Registration. Click here
PROCEDURE
(a) Check for DTCs. Click here OK: Vehicle stability control system DTCs are not output.
(a) Clear the DTCs. Click here (b) Perform the following to make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the malfunction cannot be detected.
(c) Check for DTCs. Click here OK: DTC P1578 is not output.
(a) Replace the ECM. for 1UR-FE: Click here for 3UR-FE: Click here
(a) Clear the DTCs. Click here (b) Perform the following to make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the malfunction cannot be detected.
(c) Check for DTCs. Click here OK: DTC P1578 is not output.
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Toyota Tundra Service Manual > Pre-collision System: Stop Light Relay Circuit (C1A4B)
DESCRIPTION The skid control ECU (brake actuator assembly) sends a stop light operation request signal to the stop light relay (stop light switch assembly). If the skid control ECU (brake actuator assembly) detects a malfunction in the stop light relay circuit, the millimeter wave radar sensor assem ...