Test C: the Retractable Running Board Does Not Operate Correctly - Right Running Board

PINPOINT TEST C: THE RETRACTABLE RUNNING BOARD DOES NOT OPERATE CORRECTLY - RIGHT RUNNING BOARD

C1:

C2-C5:

C5-C7:

C8-C9:

Normal 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.

Possible Causes
- Open in circuit CPR47 (GY/BN), RPR47 (BU/GN), VPR46 (GY/OG), CPR44 (BN/WH) or CPR45 (VT/GY)
- Short to ground in circuit VPR46 (GY/OG), CPR44 (BN/WH) or CPR45 (VT/GY)
- Short to battery in circuit VPR46 (GY/OG), CPR44 (BN/WH) or CPR45 (VT/GY)
- Short circuit between CPR44 (BN/WH) and CPR45 (VT/GY)
- PRB module
- RH PRB mechanical assembly
- RH PRB motor