P0719

DTC P0719 (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 a closed brake switch, stuck ON, during accelerations, DTC P0719 sets. DTC P0719 is a type C DTC.

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

Conditions for Setting the DTC
DTC P0719 sets if the PCM detects a closed brake switch or circuit, ignition voltage, for 15 minutes and the following conditions occur 8 times:
^ The vehicle speed is less than 8 km/h (5 mph);
^ then, the vehicle speed is 8 - 32 km/h (5 - 20 mph) for 3 seconds;
^ then, the vehicle speed is greater than 32 km/h (20 mph) for 6 seconds.

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 disregards the brake switch input for TCC scheduling. The PCM then uses throttle position and vehicle speed inputs to determine TCC application and release. Use of these inputs may result in a noticeable harsh apply or abrupt release of the TCC.
^ 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 P0719 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, and observing a status change, isolates the brake switch as the source of the DTC.
3. This step inspects the signal circuit for a short to voltage, if the brake switch status on the scan tool did not change in Step 2.
4. If the brake switch is properly adjusted, then the brake switch must be replaced.
5. Replace the PCM only after you have completed the preceding diagnostic steps.

Steps 1 - 7:

DTC P0719 (2.2L)