DTC Description

DTC DETECTION LOGIC

DTC		M.U.T.-III SE screen terms (Trouble diagnosis content)	DTC detection condition
P1572	00	ASCD BRAKE SW (ASCD brake switch)	Diagnosis condition	Selector lever Suitable position and engine run
			Signal (terminal)	Stop light switch signal
			Threshold	Stop light switch signal is not sent to ECM for extremely long time
			Diagnosis delay time	—

POSSIBLE CAUSE

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

1.CHECK DTC PRIORITY

If DTC P1572 is displayed with other DTC, first perform the trouble diagnosis for other DTC.

Is applicable DTC detected?

Perform diagnosis of applicable. Refer to DTC Index

2.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

3.PERFORM DTC CONFIRMATION PROCEDURE

Drive the vehicle for at least 5 consecutive seconds as per the following conditions.
caution Always drive vehicle at a safe speed.
note This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.
Selector lever Suitable position
Driving location Depress the brake pedal for more than five seconds so as not to come off from the above-mentioned vehicle speed.
Check DTC.

Is DTC detected?

-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident

-2Confirmation after repair: INSPECTION END

Selector lever	Suitable position
Driving location	Depress the brake pedal for more than five seconds so as not to come off from the above-mentioned vehicle speed.