OBD Guide
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U1202

Invalid Or Missing Data For Windows

U1202 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For Windows. Common causes: open or short circuit in the can bus, damage to the door wiring harness. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Power windows don't work
  • Intermittent operation of power windows
  • Check Engine Light Is On
  • Errors in other systems
  • Central locking malfunctions

Causes

  • Open or short circuit in the CAN bus
  • Damage to the door wiring harness
  • Door control module malfunction
  • Problems with the body electronics unit
  • Corrosion of contacts in connectors

How to Fix

  1. Check the integrity of the CAN bus
  2. Inspect the wiring harness in the doors
  3. Check power supply and ground of control modules
  4. Scan all modules for errors
  5. Update module software

Related codes

U1201U1203U1204

FAQ

What does the U1202 code mean?

U1202 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For Windows

What causes a U1202 error code?

The most common causes of U1202 include: Open or short circuit in the CAN bus; Damage to the door wiring harness; Door control module malfunction; Problems with the body electronics unit.

How do I fix a U1202 diagnostic trouble code?

To fix U1202: Check the integrity of the CAN bus. Inspect the wiring harness in the doors. Check power supply and ground of control modules. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1202?

Yes, but get it checked soon

How much does it cost to fix U1202?

The estimated repair cost for U1202 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat