OBD Guide
ENFRDEESPT

U1071

Invalid Or Missing Data For Engine Sensors

U1071 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Engine Sensors. Common causes: open or short circuit in the sensor circuit, malfunction of the sensor (mass air flow sensor, crankshaft position sensor, etc.). Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Unstable engine operation
  • Check engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • The car goes into emergency mode

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the sensor (mass air flow sensor, crankshaft position sensor, etc.)
  • Sensor Grounding Problems
  • Wiring harness damage
  • ECU malfunction

How to Fix

  1. Check the integrity of the sensor wires and connectors
  2. Check the sensor readings using a diagnostic scanner
  3. Replace faulty sensor
  4. Check and restore the sensor circuit grounding
  5. If necessary, replace the ECU

Related codes

U1072U1073P0600

FAQ

What does the U1071 code mean?

U1071 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Engine Sensors

What causes a U1071 error code?

The most common causes of U1071 include: Open or short circuit in the sensor circuit; Malfunction of the sensor (mass air flow sensor, crankshaft position sensor, etc.); Sensor Grounding Problems; Wiring harness damage.

How do I fix a U1071 diagnostic trouble code?

To fix U1071: Check the integrity of the sensor wires and connectors. Check the sensor readings using a diagnostic scanner. Replace faulty sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1071?

Yes, but get it checked soon

How much does it cost to fix U1071?

The estimated repair cost for U1071 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat