300D (124.133) L6-3.0L DSL Turbo (603.960) (1987)
ECM Calibration Resistor: Testing and Inspection
Trimming Plug
Fig. 40 Trimming Plug Connector Terminal ID
NOTE: The trimming plug should be installed in position 4.
1.
With engine off and steering lock in the second postion, disconnect the trimming plug connector.
2.
Check for 5 volts between terminals A and B, Fig. 40, of the trimming plug connector. If 5 volts is measured, replace the trimming plug. If 5
volts is not measured, check for and repair any open circuits. If all circuits are good, replace EDS control unit.