P1822
Internal Mode Switch Circuit 'B' Low
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Incorrect display of gear selector position
- Gear shifting problems
- Transmission of the gearbox into emergency mode
- Check Engine Light Illuminates
- Unexpected transmission behavior
Causes
- Malfunction of the internal mode switch
- Open or short circuit in switch circuit
- Poor contact in connectors
- Problems with the transmission control unit
- Contact corrosion
How to Fix
- Check the integrity of the mode switch circuit
- Inspect connectors and contacts for damage
- Check the functionality of the internal mode switch
- Scan the transmission control unit for errors
- If necessary, replace the switch or repair the wiring