Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 1VD-FTV ENGINE CONTROL
READ VALUE USING GTS (STOP LIGHT SWITCH)
INSPECT STOP LIGHT SWITCH ASSEMBLY
REPLACE STOP LIGHT SWITCH ASSEMBLY
REPAIR OR REPLACE HARNESS OR CONNECTOR
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
DTC P0724 Brake Switch "B" Circuit High
DESCRIPTION
This DTC indicates that the stop light switch remains on. When the stop light switch remains on during GO and STOP driving, the ECM interprets this as a fault in the stop light switch. Then the MIL illuminates and the ECM stores the DTC.
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
| Accelerate the vehicle to 30 km/h (19 mph) or more, depress the brake pedal and decelerate the vehicle to 3 km/h (1.8 mph) or less 5 times. | Stop light switch remains on even when vehicle is driven in GO (30 km/h (19 mph) or more) and STOP (less than 3 km/h (1.8 mph)) pattern 5 times. (2 trip detection logic) | Short in stop light switch signal circuit Stop light switch assembly ECM |
| DTC No. | Data List |
| P0724 | Stop Light Switch |
WIRING DIAGRAM
Refer to DTC P0504 ().
INSPECTION PROCEDURE
- NOTICE:
- HINT:
- Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
| 1.READ VALUE USING GTS (STOP LIGHT SWITCH) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Enter the following menus: Engine and ECT / Data List / Stop Light Switch.
Read the value displayed on the GTS when the brake pedal is depressed and released.
- OK:
Brake Pedal Display Released OFF Depressed ON
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| 2.INSPECT STOP LIGHT SWITCH ASSEMBLY |
Inspect the stop light switch assembly ().
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| OK | |
| 3.CHECK ECM (STP VOLTAGE) |
Disconnect the ECM connector.
Turn the engine switch on (IG).
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
for LHD Tester Connection Brake Pedal Condition Specified Condition A38-13 (STP) - Body ground Released 0 to 3 V Depressed 11 to 14 V
- Standard Voltage:
for RHD Tester Connection Brake Pedal Condition Specified Condition A52-13 (STP) - Body ground Released 0 to 3 V Depressed 11 to 14 V
| *A | for LHD |
| *B | for RHD |
| *a | Brake Pedal Depressed |
| *b | Brake Pedal Released |
| *c | Component with harness connected (ECM) |
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| OK | |
| 4.REPLACE ECM |
Replace the ECM ().
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| 5.REPLACE STOP LIGHT SWITCH ASSEMBLY |
Replace the stop light switch assembly ().
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| 6.REPAIR OR REPLACE HARNESS OR CONNECTOR |
Repair or replace the harness or connector.
| NEXT | |
| 7.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
Connect the GTS to the DLC3.
Clear the DTCs ().
Turn the engine switch off for 30 seconds or more.
Turn the engine switch on (IG) and turn the GTS on.
Start the engine.
Accelerate the vehicle to 30 km/h (19 mph) or more, depress the brake pedal and decelerate the vehicle to 3 km/h (1.8 mph) or less 5 times or more.
Confirm that the DTC is not output again.
- HINT:
- Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.
Enter the following menus: Engine and ECT / Utility / All Readiness.
Input DTC P0724.
Check that STATUS is NORMAL.
- HINT:
| NEXT | ||
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