Circuit Description

The brake switch has 3 functions:

• Brake pedal operation check.
• Brake light operation.
• Cruise control cancel.

PCM receives switch position signal from the brake switch, along with vehicle speed from VSS, and sets brake operating conditions in response to signals. When brake switch is On, brake system is in normal operation (cruise control cancelled).

When DTC sets, PCM will not illuminate MIL. PCM will store conditions present when DTC was set as FAILURE RECORDS data only.

DTC can be cleared with scan tool, or by disconnecting battery voltage feed to PCM.