Pinpoint Test G: B15D8:24
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to POWER TAILGATE/RETRACTABLE RUNNING BOARDS
for schematic and connector information.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition BCM B15D8:24 Left Power Running Board Kick Switch: Signal Stuck High Left Power Running Board Kick Switch Possible Sources
- Wiring, terminals or connectors
- LHPRB motor
- DSM
Visual Inspection and Pre-checks
- LHPRB motor harness connections and wiring.
- NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
- G1 CHECK FOR LH (LEFT-HAND) PRB (POWER RUNNING BOARD) DIAGNOSTIC TROUBLE CODES (DTCS)
- Connect the diagnostic tool. Using a diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs) for the LHPRB.
- Ignition OFF.
- Disconnect Kick switch and related in-line connectors.
- Ignition ON.
CLEAN and INSPECT as necessary. TEST the system for normal operation.
Yes The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. No GO to G2 - G2 CHECK THE LH (LEFT-HAND) KICK SWITCH CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect Left PRB KICK SWITCH C3185B.
- Ignition ON.
- Wait 10 seconds so any PRB movement commands are complete.
Is any voltage present
Yes REPAIR the circuit. No GO to G3 - G3 CHECK THE LH (LEFT-HAND) KICK SWITCH CONTROL CIRCUITS FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C3185B-1 Ground
Are the resistances greater than 10, 000 Ohms?
Yes GO to G4 No REPAIR the circuit. - G4 CHECK THE LH (LEFT-HAND) KICK SWITCH CONTROL CIRCUITS FOR AN OPEN
- Disconnect DSM C341E.
Are the resistances less than 3 Ohms?
Yes REPLACE the LH kick switch. No REPAIR the circuit.