U1433
Implausible Igntion Switch Status Message Received
U1433 is an OBD-II diagnostic trouble code meaning: Implausible Igntion Switch Status Message Received. Common causes: ignition switch malfunction, problems with wiring or contacts. Estimated repair cost: $17–89.
Symptoms
- Problems starting the engine
- Check Engine Light Is On
- Incorrect operation of electronic systems
- Intermittent operation of the dashboard
- Random shutdown of vehicle systems
Causes
- Ignition switch malfunction
- Problems with wiring or contacts
- Malfunction of the BCM module (body controller)
- Problems with the CAN data bus
- Software error in one of the control units
How to Fix
- Check the condition of the ignition switch and its contacts
- Check the integrity of the wiring between the modules
- Read error codes from all vehicle modules
- Check the functionality of the CAN bus
- Update ECU software if necessary
Related codes
FAQ
What does the U1433 code mean?
U1433 is an OBD-II diagnostic trouble code that indicates: Implausible Igntion Switch Status Message Received
What causes a U1433 error code?
The most common causes of U1433 include: Ignition switch malfunction; Problems with wiring or contacts; Malfunction of the BCM module (body controller); Problems with the CAN data bus.
How do I fix a U1433 diagnostic trouble code?
To fix U1433: Check the condition of the ignition switch and its contacts. Check the integrity of the wiring between the modules. Read error codes from all vehicle modules. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1433?
Limited driving only, diagnose soon
How much does it cost to fix U1433?
The estimated repair cost for U1433 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat