Circuit/System Testing

DTC P057C and P057D

1. Verify that DTC P0562 or P0563 is not set.
   • If DTC P0562 or P0563 is set, refer to DTC B1325, B1330, B1420, B1424, B1517, C0800, C0895, C0899, C0900, C12E1, C12E2, P0560, P0562, or P0563 for Hybrid (HP6).
2. Ignition OFF, disconnect the harness connector at the B22 brake pedal position sensor.
3. Ignition ON, verify that a test lamp illuminates between B+ and the low reference circuit terminal 5.
   • If the test lamp does not illuminate, test the low reference circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K59 starter generator control module.
4. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 6 and ground.
   • If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K59 starter generator control module.
   • If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K59 starter generator control module.
5. Test for less than 0.3 V between the signal circuit terminal 4 and ground.
   • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K59 starter generator control module.
6. Test for 4.8-5.2 V between the 5 V reference circuit terminal 6 and the signal circuit terminal 4.
   • If less than the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the K59 starter generator control module.
7. Ignition OFF, disconnect the X2 harness connector at the K59 starter generator control module.
8. Test for infinite resistance between the signal circuit terminal 4 and ground.
   • If less than the specified range, test the signal circuit for a short to ground.
9. If all circuits test normal, replace the B22 brake pedal position sensor.

DTC P057B 

Operate the vehicle within the Conditions for Running and Setting the DTC and verify the DTC does not reset.

• If DTC P057B resets as current, replace the B22 brake pedal position sensor.

DTC P057E

1. Replace the brake pedal position sensor.
2. Perform the brake pedal position sensor calibration procedure. Refer to Brake Pedal Position Sensor Calibration .
3. Operate the vehicle within the Conditions for Running and Setting the DTC and verify the DTC does not reset.
   • If DTC P057E resets as current, replace the K59 starter generator control module.