U1198
Invalid Or Missing Data For External Access
U1198 is an OBD-II diagnostic trouble code meaning: Invalid Or Missing Data For External Access. Common causes: incompatible module software, damage to the wiring harness between modules. Estimated repair cost: ~$167.
Symptoms
- Error message on the dashboard
- Incorrect operation of the multimedia system
- Problems connecting external devices
- Intermittent operation of some vehicle systems
Causes
- Incompatible module software
- Damage to the wiring harness between modules
- Malfunction of one of the electronic modules
- Installation of non-standard equipment
- Problems with power supply of electronic modules
How to Fix
- Check that the software of all modules is up to date
- Carry out diagnostics of the CAN bus and other communication interfaces
- Check the integrity of the wiring harnesses between the modules
- Disable non-standard equipment for testing
- If necessary, replace the faulty module
Related codes
FAQ
What does the U1198 code mean?
U1198 is an OBD-II diagnostic trouble code that indicates: Invalid Or Missing Data For External Access
What causes a U1198 error code?
The most common causes of U1198 include: Incompatible module software; Damage to the wiring harness between modules; Malfunction of one of the electronic modules; Installation of non-standard equipment.
How do I fix a U1198 diagnostic trouble code?
To fix U1198: Check that the software of all modules is up to date. Carry out diagnostics of the CAN bus and other communication interfaces. Check the integrity of the wiring harnesses between the modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1198?
Yes, but get it checked soon
How much does it cost to fix U1198?
The estimated repair cost for U1198 is ~$167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat