Rear Left Door Handle Sense
Table of contents
B259C RAM Possible Causes
- Faulty Rear Left Door Handle
- Rear Left Door Handle harness is open or shorted
- Rear Left Door Handle circuit poor electrical connection
- Faulty Left Rear Door Module (DMRL)
How do I fix code B259C RAM?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- B259C-2A REAR LEFT DOOR HANDLE SENSE STUCK
- B259C-11 REAR LEFT DOOR HANDLE SENSE CIRCUIT SHORT TO GROUND
- B259C-13 REAR LEFT DOOR HANDLE SENSE CIRCUIT OPEN
Cost of diagnosing the B259C RAM code
The cost of diagnosing the B259C RAM code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B259C RAM Description
The rear passive entry sliding door handle switches are hard wired to and monitored by the Left Rear Door Module (DMRL). The status of the sliding door handle switches are sent as a CAN-IHS bus message by the DMRL; through the Body Control Module (BCM) to the Radio Frequency Hub Module (RFHM). The RFHM is connected to a fused B(+) circuit and has a path to ground at all times. These connections allow it to remain functional regardless of the ignition switch status. Any input to the RF Hub that controls a vehicle system function that does not require that the ignition switch status be ON such as depressing a button on an Remote Keyless Entry (RKE) or Frequency Operated Button with Integrated Key (FOBIK) transmitter, prompts the RF Hub to wake up and transmit on the CAN-C bus. The RF Hub uses On-Board Diagnostics (OBD) to monitor all hard wired inputs, outputs, functions and conditions.