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Home / DTC / B0207 — Invalid data from body sensor 07

B0207 — Invalid data from body sensor 07

Detailed page for trouble code B0207.

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Code

B0207

Generic B — Body

Invalid data from body sensor 07

Brand: Generic
Type: B — Body
Views: UK: 3 EN: 1 RU: 3
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Page language: EN

Causes

  • Failed or degraded body sensor 07 (internal fault)
  • Damaged or corroded sensor connector or wiring harness
  • Short to voltage or ground on the sensor signal/return
  • Poor ground or reference voltage to the sensor
  • Intermittent connection (water intrusion, chafing, loose pin)
  • CAN or body network communication error or bus fault

Symptoms

  • Associated body function (e.g., seat, door, lighting, keyless entry) may operate intermittently or not at all
  • Instrument cluster or body control module may show a warning or fault indicator
  • Unexpected behavior such as false alarms, incorrect status reporting, or disabled convenience functions
  • DTC present continuously or intermittently; may return after clearing

What to check

  • Read and record freeze frame and all stored DTCs with a capable scan tool
  • Check live sensor data stream for plausibility and stability
  • Visually inspect sensor 07, connector, and harness for damage, corrosion, or moisture
  • Backprobe connector to verify reference voltage (typically 5 V) and ground integrity
  • Wiggle test harness and connector while monitoring live data to find intermittent faults
  • Check CAN/LIN bus voltages (CAN_H, CAN_L) and network termination if sensor communicates over the bus

Signal parameters

  • Expected reference voltage: ~5 V (verify for this vehicle before testing)
  • Signal type: analog (0–5 V), resistance, or digital message over CAN/LIN (vehicle-specific)
  • Typical CAN bus nominal voltages: CAN_H ~2.5–3.5 V, CAN_L ~1.5–2.5 V (verify per vehicle)
  • Expected sensor output range should be within manufacturer specification (consult service data)
  • Message frequency: varies by network — often periodic CAN messages (10–100 Hz) or event-driven

Diagnostic algorithm

  1. Verify and document the exact DTC and any related codes; check freeze frame data and recent occurrences.
  2. Confirm symptom and attempt to reproduce while monitoring live data for Body Sensor 07.
  3. Perform visual inspection: sensor, mount, connector, and wiring for obvious damage, corrosion, or water ingress.
  4. With ignition on, backprobe the sensor connector: verify reference voltage, ground, and signal while observing live data.
  5. Wiggle the wiring and connector while watching live data to detect intermittent faults; repair or secure as needed.
  6. If the sensor is an analog/resistive device, measure resistance/voltage values with a multimeter and compare to specification.
  7. If the sensor communicates over CAN/LIN, use a scope or scan tool to verify message presence and bus integrity; check for missing or malformed frames.
  8. Repair any wiring/connectors found faulty (clean, repair, replace harness or terminal as required); ensure good grounds and connectors.
  9. If wiring and power/ground/checks are good, substitute a known-good sensor (if available) or replace the sensor per service procedure.
  10. If replacing the sensor does not clear the issue, verify body control module software/calibration, and consider module diagnostics or replacement per manufacturer guidance.
  11. After repairs, clear codes, perform function checks and test drive to confirm DTC does not return.

Likely causes

  • Open or short in sensor signal wire or return
  • Corroded/loose connector at sensor or module
  • Failed sensor element producing out-of-range values
  • Loss of sensor reference voltage (e.g., missing 5V supply)
  • Network communication errors on CAN/LIN carrying the sensor data
  • Faulty body control module interpreting the sensor data

Fault status

⚠️ Status
Invalid/implausible data received from Body Sensor 07. Causes include sensor failure, wiring/connector fault, loss of reference voltage, or communication errors on the vehicle network.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-3.0 hours

Similar codes

B0206 B0208 B0217 B0607 U0121 U0401
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