April 5, 2026: LEMON Manuals is launched! Read the announcement.

Checking Switch Key Reminder: Notes

Fig 1: Measuring The Resistance

Courtesy of VOLVO CARS OF NORTH AMERICA.

Measure the resistance:
- switch open:∞ Ω
- switch pushed in:0 Ω .
Check when the key is pushed in the ignition that the bracket is moved inside ignition column.