Braking Sensor/Switch: Testing and Inspection

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

Stop Lamp Switch System Inspection


1. SELF-DIAGNOSIS RESULT CHECK

Check self-diagnosis results.





Is the above displayed in the self-diagnosis display items?
YES- GO TO 2.
NO- Inspection End.

2. CONNECTOR INSPECTION

1.Disconnect the ABS actuator and electric unit (control unit) and stop lamp switch connectors.
2.Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK- GO TO 3.
NG- Repair or replace as necessary.

3. CHECK STOP LAMP SWITCH CIRCUIT






1.Connect stop lamp switch connector.
2.Check voltage between ABS actuator and electric unit (control unit) connector E33 terminal 20 and ground.





Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Service and Repair.
NO- GO TO 4

4. CHECK STOP LAMP SWITCH CIRCUIT FOR OPEN






1.Disconnect stop lamp switch connector.
2.Check continuity between ABS actuator and electric unit (control unit) connector E33 (A) terminal 20 and stop lamp switch connector E13 (B) terminal 2 (without M/T), or E13 (C) terminal 2
(with M/T).





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace as necessary.

5. CHECK STOP LAMP SWITCH CIRCUIT FOR SHORT






Check continuity between ABS actuator and electric unit (control unit) connector E33 terminal 20 and ground.





Is the inspection result normal?
YES- Replace stop lamp switch.
NO- Repair harness or connectors.