Brake Signal Circuit

BRAKE SIGNAL CIRCUIT

CONSULT-II Reference Value:

Diagnostic Procedure

1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT-92, "SELF-DIAGNOSTIC RESULT MODE", AT-102, "Diagnostic Procedure without CONSULT-II".
Self-Diagnostic Result Mode
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT-104, "DTC U1000 CAN COMMUNICATION LINE". U1000
NO >> GO TO 2.

2. CHECK STOP LAMP SWITCH CIRCUIT

With CONSULT-II
1. Turn ignition switch ON.








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 E210 terminals and 2.
Check stop lamp switch after adjusting brake pedal.
OK or NG
OK >> 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 unified meter and A/C amp.
NG >> Repair or replace the stop lamp switch.