P1805
DTC P1805 BRAKE SWITCHDescription
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed. This signal is used mainly to decrease the engine speed when the vehicle is driving.
Consult-II Reference Value In Data Monitor Mode:
On Board Diagnosis Logic:
Fail-Safe Mode:
DTC Confirmation Procedure
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-II.
4. Select "DATA MONITOR" mode with CONSULT-II.
5. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.
WITH GST
Follow the procedure "WITH CONSULT-II" above.
EC-BRK/SW-01:
Wiring Diagram
Diagnostic Procedure Step 1:
Diagnostic Procedure Step 2 - 3:
Diagnostic Procedure Step 4 - 7:
Diagnostic Procedure
Component Inspection
STOP LAMP SWITCH
1. Disconnect stop lamp switch harness connector.
2. Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
3. If NG, replace stop lamp switch.