U1192
Lost Communication With Lower Switch Bank
U1192 is an OBD-II diagnostic trouble code meaning: Lost Communication With Lower Switch Bank. Common causes: open or short circuit in wiring harness, poor contact in switch block connectors. Estimated repair cost: $17–89.
Symptoms
- Some control functions do not work (such as lights or power windows)
- Check Engine light comes on
- Intermittent operation of electronic systems
- Errors in the operation of other electronic systems of the car
Causes
- Open or short circuit in wiring harness
- Poor contact in switch block connectors
- Malfunction of the lower switch block
- Problems with power or grounding of the unit
- ECU malfunction (rare)
How to Fix
- Check the integrity of the wiring harness to the switch block
- Clean and check contacts in connectors
- Check power supply and grounding of the unit
- Test or replace lower switch assembly
- Check the serviceability of the ECU (if necessary)
Related codes
FAQ
What does the U1192 code mean?
U1192 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Lower Switch Bank
What causes a U1192 error code?
The most common causes of U1192 include: Open or short circuit in wiring harness; Poor contact in switch block connectors; Malfunction of the lower switch block; Problems with power or grounding of the unit.
How do I fix a U1192 diagnostic trouble code?
To fix U1192: Check the integrity of the wiring harness to the switch block. Clean and check contacts in connectors. Check power supply and grounding of the unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1192?
Limited driving only, diagnose soon
How much does it cost to fix U1192?
The estimated repair cost for U1192 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat