Brake Signal Circuit

BRAKE SIGNAL CIRCUIT

CONSULT-III Reference Value in Data Monitor Mode:

Diagnosis Procedure

1.CHECK CAN COMMUNICATION LINE

With CONSULT-III
^ Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT-III.

Without CONSULT-III
^ Perform the self-diagnosis. Refer to AT-92, "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-95. U1000
NO >> GO TO 2.

2.CHECK STOP LAMP SWITCH CIRCUIT

With CONSULT-III
1. Turn ignition switch ON.
2. Select "DATA MONITOR" mode for "TRANSMISSION" with CONSULT-III.
3. Read out ON/OFF switching action of the "BRAKE SW". Refer to "CONSULT-III Reference Value in Data Monitor Mode".
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.

3.CHECK STOP LAMP SWITCH








Check continuity between stop lamp switch harness connector terminals.
Check stop lamp switch after adjusting brake pedal - refer to BR-6. Adjustments
OK or NG
OK >> Check the following. 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.
^ 10A fuse (No.20, located in fuse block).
NG >> Repair or replace the stop lamp switch.