PINPOINT TEST D : DTCs B1167, B1168, B1175, B1178, B116B, B116D, B116C and B116E: Notes
Refer to Power Liftgate/Retractable Running Boards , for schematic and connector information.
Normal Operation
During Power Running Board(PRB) deployment, the PRB module supplies power to the PRB motor through circuit CPR41 (BU/WH) (LH) or CPR44 (BN/WH) (RH) and ground through circuit CPR42 (WH) (LH) or CPR45 (VT/GY) (RH). The PRB module stows the PRB by supplying power to the PRB motor through circuit CPR42 (WH) (LH) or CPR45 (VT/GY) (RH) and ground through circuit CPR41 (BU/WH) (LH) or CPR44 (BN/WH) (RH). The PRB module provides a regulated 10-volt power supply to the Hall-effect sensor (internal to the PRB motor) through circuit CPR47 (GY/BN). The Hall-effect ground is provided by the PRB module through circuit RPR47 (BU/GN). The PRB module monitors the PRB Hall-effect signal through circuit VPR43 (GY/BU) (LH) or VPR46 (GY) (RH). If the PRB module does not receive any signal from the Hall-effect sensor during operation, the PRB will stop.
| DTC Description | Fault Trigger Conditions |
|---|---|
| B1167 - Left Power Running Board Deploy and/or Stow Circuit Short to Battery | The PRB module sets this DTC if a short to battery voltage is detected in the LH running board motor circuit(s). |
| B1168 - Left Power Running Board Motor Circuit Short to Ground | The PRB module sets this DTC if a short to ground is detected in the motor circuit while attempting to retract/stow the LH running board. |
| B1175 - Right Power Running Board Stow Circuit Short to Ground | The PRB module sets this DTC if a short to ground is detected in the motor circuit while attempting to retract/stow the RH running board. |
| B1178 - Right Power Running Board Deploy and/or Stow Circuit Short to Battery | The PRB module sets this DTC if a short to battery voltage is detected in the RH running board motor circuit(s). |
| B116B - LH Power Running Board Motor Short | The PRB module sets this DTC if it detects the LH running board motor circuit(s) are shorted together. |
| B116C - RH Power Running Board Motor Short | The PRB module sets this DTC if it detects the RH running board motor circuit(s) are shorted together. |
| B116D - LH Power Running Board Motor Line Open | The PRB module sets this DTC when it detects an open in the LH running board motor circuit(s). |
| B116E - RH Power Running Board Motor Line Open | The PRB module sets this DTC when it detects an open in the RH running board motor circuit(s). |
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- LH or RH PRB motor assembly
- PRB module