B2881

Code

Generic B — Body

Wireless Charging Module Fault

Brand: Generic

Type: B — Body

Views: UK: 9 EN: 32 RU: 8

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Page language: EN

Scan vehicle for B2881 and any related codes; record freeze frame and presence of other modules' codes
Visually inspect wireless charging pad, module, harness, and connectors for damage, contamination, or moisture
Check relevant fuses and fusible links for continuity
Verify vehicle battery voltage is within nominal range (12–14.5 V) while testing
Confirm no foreign metallic object is present on the pad (FOD)
Check for poor grounds at module and chassis ground points

Module supply voltage: typically battery voltage ~12–14.5 V under normal conditions
Module standby/current draw: low (mA) when idle; abnormally high current may indicate fault
Ground continuity: near 0 Ω between module ground and chassis
Pad coil continuity/inductance: consistent with manufacturer specification (open or short is fault)
Foreign Object Detection (FOD) sensor response: changes when metal object placed/removed
Communication: CAN or LIN messages present to/from module (check with OEM scan tool for message IDs and data)

Connect an OEM-calibrated scan tool. Read and record DTC B2881 and any additional codes or freeze frame data.
Clear codes and attempt to reproduce the fault by placing a compatible device on the pad. Note if code returns and under what conditions.
Visually inspect pad surface and surrounding area for debris, metal objects, liquid, or damage. Clean pad and retest.
Inspect wiring harness and connectors for corrosion, damage, pin push-out, or moisture. Repair or secure connections as needed.
Check relevant fuses for continuity; replace any blown fuses and retest.
Measure supply voltage and ground at the module connector with key on. Confirm voltage is within expected range and ground is good.
Check pad coil continuity/inductance per service specification. Replace pad or repair wiring if open/short or out-of-spec.
Monitor module communication on CAN/LIN bus with a scan tool. If no communication, trace bus wiring and check terminations.
If hardware and wiring are good but fault persists, check for module firmware updates or known service bulletins; reprogram or reset module if directed by OEM procedures.
If diagnostic steps isolate the fault to the module (internal fault, repeating faults after good wiring and updated software), replace the wireless charging module and re-initialize/calibrate per manufacturer instructions.
After repair, erase codes and verify operation through full functional test and road/test area reproduction, ensuring no recurrence.