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Home / DTC / B2477 — Failure in the configuration of the control module

B2477 — Failure in the configuration of the control module

Detailed page for trouble code B2477.

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Code

B2477

LAND ROVER B — Body

Failure in the configuration of the control module

Brand: LAND ROVER
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed or interrupted software update/programming
  • Corrupted or erased non-volatile memory (NVM) in the control module
  • Incorrect module coding or configuration parameters
  • VIN or network topology mismatch between modules
  • Communication faults on vehicle network (CAN/LIN)
  • Battery voltage loss during programming or low battery condition

Symptoms

  • Malfunction of the system controlled by the affected module (loss of features or degraded operation)
  • MIL or dash warning messages related to system configuration
  • Unable to communicate with the module or inconsistent responses on a diagnostic tool
  • Other modules may report related network or configuration errors
  • Vehicle may enter limp or restricted modes depending on which module is affected

What to check

  • Read and record all stored DTCs and freeze frame data from the affected module and gateway
  • Confirm battery voltage is within specification (typically ≥12.4 V) and charging system is healthy
  • Check for recent programming or module replacement events in service history
  • Inspect module power, ground, and connector pin condition for corrosion, damage, or loose pins
  • Verify CAN/LIN bus continuity and termination, check for other modules reporting communication faults
  • Compare module part number, software and calibration versions with manufacturer database

Signal parameters

  • Battery supply voltage to module (VBatt) — steady and within spec during wake/programming
  • CAN bus alive messages (Tx/Rx counts) for module node ID
  • UDS/ISO-TP diagnostic session response (positive response vs negative/timeout)
  • Module software (SW) and calibration (Cal) part numbers reported by diagnostic tool
  • NAP (coding/configuration) fields returned by the module (coding bytes or VIN match)

Diagnostic algorithm

  1. Connect a manufacturer-level diagnostic tool and read all stored codes from all modules; document related U-codes or network errors.
  2. Verify battery state of charge and health; if low, charge or connect a stable power supply before further checks or programming.
  3. Inspect module connectors, wiring for power/ground, and relevant fuses. Repair any physical issues found.
  4. Confirm the module is the correct part number for this VIN and check software/calibration levels against manufacturer data.
  5. Attempt a communication test with the module. If intermittent or no communication, trace wiring and CAN bus nodes.
  6. If communication is normal but configuration is invalid, attempt to reload/correct the module configuration using the manufacturer diagnostic tool (recode/reprogram/reflash). Follow official reprogramming procedures and ensure stable battery voltage.
  7. After reprogramming, clear codes and perform system relearn/initialization procedures required by manufacturer.
  8. If reprogramming fails repeatedly or module reports internal memory errors, consider module replacement and program the replacement with correct vehicle-specific coding.
  9. Re-scan all modules to confirm no remaining configuration errors and verify related systems operate normally.
  10. If problem persists, consult manufacturer technical service bulletins or escalate to dealer technical support.

Likely causes

  • Recent dealer or aftermarket module replacement where module was not properly coded to the vehicle
  • Partial software update left module in an inconsistent state
  • Connector corrosion or intermittent power/ground to the module during coding
  • Configuration files on the module do not match other networked modules (e.g., body control module or gateway)
  • Blown fuse or wiring fault feeding the module resulting in corrupted configuration writes

Fault status

⚠️ Status
Control module configuration failure — module configuration data is missing, corrupted, or incompatible with vehicle. Reprogramming/re-coding or module replacement may be required.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

B2476 B2478 B2490 U0100 U0401
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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