Scan Tool Data Definitions

Scan Tool Data Definitions

Body Control Module (BCM)
Battery Voltage Signal
Display indicates battery voltage. Measured in volts.

Shift Lock Solenoid Command
Displays the status of the shift lock control solenoid. Lock indicates the control circuit is grounded. Unlock indicates that the control circuit is not grounded.

Engine Control Module (ECM)/Powertrain Control Module (PCM)
BPP Circuit Signal
Displays Applied or Released status of the brake switch.

IMS A/B/C/P
Displays LOW or HI for the state of each of the 4 inputs from the internal mode switch (IMS). LOW displayed indicates a low voltage signal (0 volts) being monitored at the engine control module (ECM). HI displayed indicates a high voltage signal (B+) being monitored at the ECM.

Initial Brake Apply Signal
Displays Applied or Released status of the brake switch.

TCC Brake Switch
Displays Open or Closed status of the torque converter clutch (TCC) brake switch.

TR Sw. A/B/C/P
Displays LOW or HI for the state of each of the 4 inputs from the IMS. LOW displayed indicates a low voltage signal (0 volts) being monitored at the powertrain control module (PCM). HI displayed indicates a high voltage signal (B+) being monitored at the PCM.