DTC P0724: Brake Switch "B" Circuit High: Procedure
- READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG) and turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch.
- Read the values displayed on the Techstream.
OK
Item Measurement Item: Range (display) Normal Condition Stop Light Switch Stop light switch status:
ON or OFF- ON: Brake pedal is depressed
- OFF: Brake pedal is released
NG → See step 2
OK → See step 4
- INSPECT STOP LIGHT SWITCH ASSEMBLY. Refer to PROCEDURE - Step 3
NG → See step 5
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - ECM)
- Disconnect the stop light switch connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Short)
Tester Connection Condition Specified Condition A22-1 or A5-13 (STP) - Body ground Always 10 kΩ or higher A22-3 or A5-12 (ST1-) - Body ground Always 10 kΩ or higher - Reconnect the stop light switch connector and ECM connector.
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (STOP LIGHT SWITCH - ECM)
OK → See step 6
- CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS
- REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to REMOVAL
- REPLACE ECM. Refer to REMOVAL