Brake Signal Circuit

BRAKE SIGNAL CIRCUIT






CONSULT-II Reference Value

Diagnostic Procedure
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT-85, "SELF-DIAGNOSTIC RESULT MODE".

Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE" Transmission Control Systems.
NO >> GO TO 2.

2. CHECK STOP LAMP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)








2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out ON/OFF switching action of the "BRAKE SW".

OK or NG
OK >> INSPECTION END
NG >> GO TO 3.

3. CHECK STOP LAMP SWITCH





Check continuity between stop lamp switch harness connector terminals 1 and 2.
Check stop lamp switch after adjusting brake pedal.

OK or NG
OK >> INSPECTION END
NG >> Check the following items. If NG, repair or replace damaged parts.
^ Harness for short or open between battery and stop lamp switch.
^ Harness for short or open between stop lamp switch and combination meter.