300SL (129.061) L6-3.0L (104.981) (1991)
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Data Link Connector: Description and Operation
Diagnostic Socket (X11/4)
Fig. 72 Bosch On/Off Ratio Tester
The diagnostic socket, which is located on the left wheel housing, is the interface connector which links the CIS-E and EZL control module with the
Bosch on/off ratio tester (KDJE-P 600 lambda control tester). The Bosch on/off ratio tester displays:
a. Control Module Designation (Federal/California)
b. Fault Codes
c. Air/Fuel Ratio %
c. Idle Speed Control Values
