OBD Guide
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U1007

Lost communication With Battery Monitoring Sensor 'A'

U1007 is an OBD-II diagnostic trouble code meaning: Lost communication With Battery Monitoring Sensor 'A'. Common causes: open or damaged sensor circuit, poor contact in the sensor connector. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Incorrect operation of the charging system
  • Malfunctions of the car's electronic systems
  • Reduced engine performance
  • Problems starting the engine

Causes

  • Open or damaged sensor circuit
  • Poor contact in the sensor connector
  • Battery monitoring sensor malfunction
  • Wiring Harness Problems
  • Computer malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect and clean the contacts in the sensor connector
  3. Check the functionality of the battery monitoring sensor
  4. Replace sensor if necessary
  5. Check and repair wiring harness if necessary

Related codes

U1000U1001U1010

FAQ

What does the U1007 code mean?

U1007 is an OBD-II diagnostic trouble code that indicates: Lost communication With Battery Monitoring Sensor 'A'

What causes a U1007 error code?

The most common causes of U1007 include: Open or damaged sensor circuit; Poor contact in the sensor connector; Battery monitoring sensor malfunction; Wiring Harness Problems.

How do I fix a U1007 diagnostic trouble code?

To fix U1007: Check the integrity of the sensor circuit. Inspect and clean the contacts in the sensor connector. Check the functionality of the battery monitoring sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1007?

Yes, but get it checked soon

How much does it cost to fix U1007?

The estimated repair cost for U1007 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat