P0724

DTC P0724 (2.2L)

Circuit Description
The brake switch indicates brake pedal status to the PCM. The normally-open brake switch supplies ignition voltage to the PCM. Applying the brake pedal closes the switch, supplying voltage to the PCM. Releasing the brake pedal interrupts voltage to the PCM. When the PCM senses ignition voltage at the brake switch input, the PCM de-energizes the Torque Converter Clutch (TCC)solenoid valve.

When the PCM detects an open brake switch, stuck OFF, during decelerations, DTC P0724 sets. DTC P0724is a type C DTC.

Conditions for Running the DTC
No VSS DTCs P0502 or P0503.

Conditions for Setting the DTC
DTC P0724 sets if the PCM detects an open switch or circuit, 0 volts, during vehicle deceleration and the following conditions occur eight times:
^ The vehicle speed is greater than 32 km/h (20 mph) for 6 seconds;
^ then, the vehicle speed is 8 - 32 km/h (5 - 20 mph) for 3 seconds;
^ then, the vehicle speed is less than 8 km/h (5 mph).

Action Taken When the DTC Sets
^ The PCM does not illuminate the Malfunction Indicator Lamp (MIL).
^ The PCM illuminates the Service Vehicle Soon (SVS) lamp.
^ The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Failure Records.
^ The PCM stores DTC P0724 in PCM history.

Conditions for Clearing the SVS Lamp/DTC
^ The PCM turns OFF the SVS lamp when the condition no longer exists.
^ A scan tool can clear the SVS Lamp/DTC.
^ The PCM clears the DTC from PCM history if the vehicle completes 40 warm-up cycles without a non-emission-related diagnostic fault occurring.
^ The PCM cancels the DTC default actions when the fault no longer exists and the DTC passes.

Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Disconnecting the brake switch connector, jumping the circuit, and observing a status change, isolates the brake switch as the source of the DTC.
3. If the ignition 1 voltage circuit shorts to ground, the BRAKE fuse opens.
5. If the brake switch is properly adjusted, then the brake switch must be replaced.
8. Replace the PCM only after you have completed the preceding diagnostic steps.

Steps 1 - 5:

Steps 6 - 10:

DTC P0724 (2.2L)