Pinpoint Tests FD: Brake Pedal Inputs: Introduction
WARNING:
To prevent the risk of high-voltage shock, always follow precisely all warnings and service instructions, including instructions to depower the system. The high-voltage system utilizes approximately 300 volts DC, provided through high-voltage cables to its components and modules. The high-voltage cables and wiring are identified by orange harness tape or orange wire covering. All high-voltage components are marked with high-voltage warning labels with a high-voltage symbol. Failure to follow these instructions may result in serious personal injury or death.
This pinpoint test is intended to diagnose the following:
- brake pedal position (BPP) switch (13480)
- harness circuits: B+, BPP, BPS, SIGRTN
- powertrain control module (PCM) (12A650)
Harness Side
| Circuit | Pin |
|---|---|
| BPS (Brake Pressure Switch) | 2 |
| SIGRTN (Signal Return) | 3 |
Harness Side
| Circuit | Pin |
|---|---|
| BPP (Brake Pedal Position) | B2 |
| BPS (Brake Pressure Switch) | B3 |
| SIGRTN (Signal Return) | B39 |