Test C: The Power Running Board (PRB) Does Not Operate Correctly - Right Running Board
PINPOINT TEST C: THE POWER RUNNING BOARD (PRB) DOES NOT OPERATE CORRECTLY - RIGHT RUNNING BOARDNormal Operation
The power running board (PRB) module receives door ajar, operating configuration from the cluster and vehicle speed status over the controller area network (CAN). During RH PRB deployment, the PRB module supplies power to the RH PRB motor through circuit CPR44 (BN/WH) and ground through circuit CPR45 (VT/GY). The PRB module stows the RH PRB by supplying power to the RH PRB motor through circuit CPR45 (VT/GY) and ground through circuit CPR44 (BN/WH). 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 RH PRB Hall-effect signal through circuit VPR46 (GY/OG). If the PRB module does not receive any signal from the Hall-effect sensor during operation, the PRB will stop.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- PRB module
- RH PRB motor
C1-C5:
C5-C7:
C8-C9:
