Brake Signal Circuit

BRAKE SIGNAL CIRCUIT

CONSULT-III Reference Value in Data Monitor Mode:

Diagnosis Procedure

1. CHECK CAN COMMUNICATION LINE

With CONSULT-III
^ Perform the self-diagnosis.

Without CONSULT-III
^ Perform the self-diagnosis. Refer to AT-91, "Diagnosis Procedure without CONSULT-III". Diagnosis Procedure Without Consult-III
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT-94. U1000
NO >> GO TO 2.

2. CHECK STOP LAMP SWITCH CIRCUIT

WITH CONSULT-III
1. Turn ignition switch ON.
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
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 1 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.