P1575

Diagnostic Chart (Part 1 Of 2):

Diagnostic Chart (Part 2 Of 2):

Schematic:

CIRCUIT DESCRIPTION
The extended travel brake switch is a normally closed switch. With the brake pedal NOT applied, the PCM should detect a high signal voltage on the extended travel brake switch circuit. With the brakes applied, the PCM compares the extended travel brake switch input to the TCC and/or Stoplamp switch input. If a signal transition occurs on the TCC and/or Stoplamp switches without a transition on the extended travel brake switch, DTC P1575 will set.

CONDITIONS FOR RUNNING THE DTC
^ Engine Speed is greater than 500 RPM.
^ No VSS, TCC brake switch, Stoplamp brake switch, or EBCM Serial Data DTCs are set.
^ Traction control and antilock brake systems have not failed
^ Traction control and antilock brake systems are not active.
^ VSS achieves 32 km/h (20 mph) and remains above 5 km/h (3 mph).
^ The difference in speed between the driven wheels and the non-driven wheels is less than 10 km/h (6 mph).

CONDITIONS FOR SETTING THE DTC
The PCM detects a transition on the TCC and/or stoplamp switches without a transition on the extended travel brake switch

ACTION TAKEN WHEN THE DTC SETS
^ The PCM will not illuminate the Malfunction Indicator Lamp (MIL).
^ PCM disables cruise control.
^ The PCM will store conditions which were present when the DTC set as Failure Records only.

CONDITIONS FOR CLEARING THE DTC
^ The PCM will request that the message be turned OFF after one diagnostic test has been run and passed.
^ The History DTC will be cleared after 40 consecutive warm-up cycles have occurred without a malfunction.
^ The DTC can be cleared by using the scan tool Clear DTC Information function.

DIAGNOSTIC AIDS
If the condition is intermittent, refer to Intermittent Conditions in Symptoms. Intermittent Conditions