Test E: the Retractable Running Board Does Not Operate Correctly - DTC B1162, B1163, B1164 or B1170

PINPOINT TEST E: THE RETRACTABLE RUNNING BOARD DOES NOT OPERATE CORRECTLY - DTC B1162, B1163, B1164 OR B1170

E1-E2:

E2-E4:

E4-E6:

E6-E8:

E8-E10:

E10-E11:

Normal Operation
The power running board (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/OG) (RH). 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), VPR43 (GY/BU) or VPR46 (GY/OG)
- Short to ground in circuit VPR43 (GY/BU), VPR46 (GY/OG) or CPR47 (GY/BN)
- Short to battery in circuit VPR43 (GY/BU), VPR46 (GY/OG) or CPR47 (GY/BN)
- PRB module
- LH or RH PRB motor assembly