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. Self-Diagnostic Result Mode
Refer to AT-102, Diagnostic Procedure without CONSULT-II". Displaying & Reading Trouble Codes
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line.
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 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.