Transmission Control System
DTC P0724 Brake Switch "B" Circuit HighDESCRIPTION
The purpose of this circuit is to prevent the engine from stalling while driving in lock-up condition when brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signal to the ECM. Then the ECM cancels the operation of the lock-up clutch while braking is in progress.
DTC Detection Condition:
MONITOR DESCRIPTION
This DTC indicates that the stop light switch remains on. When the stop light switch remains ON during "stop and go" driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and the ECM stores the DTC. The vehicle must stop (less than 3 km/h (2 mph)) and go (30 km/h (19 mph) or more) ten times for two driving cycles in order to detect a malfunction.
Monitor Strategy:
Typical Enabling Conditions:
Typical Malfunction Thresholds:
WIRING DIAGRAM
Refer to Powertrain Management, Diagrams, Electrical.
INSPECTION PROCEDURE
Steps 1-2:
Step 3:
