LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 1989 >> 560SEC (126.045) V8-5.6L (117.968) >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Cruise Control/Tempomat System >> Testing Coding Plug
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Testing Coding Plug

Testing coding plug





Remove coding plug (R 29)
- production date (a),
- part number (b),
- jack designation (c).

Note: There is no jack designation A-G on some coding plugs. Check these coding plugs as shown on illustration.

Connect ohmmeter and check resistance values (refer to table)

Renew coding plug (R 29) if values are deviating.

Test Table - Resistance Values: