G 20 Van V8-393 6.5L DSL VIN Y (1995)
Control Module: Service and Repair
Preliminary Information
Control Module
Replacement of the Transmission Control Module (TCM) consists of a service controller, without a Programmable Read Only Memory (PROM)
(MEM-CAL).
If the diagnostic procedures require the TCM to be replaced, the TCM, PROM (MEM-CAL) should be checked for the correct part number. If
they are correct, remove the PROM (MEM-CAL), and install them in the replacement control module. The control module will not contain a
PROM (MEM-CAL).
NOTE: When replacing a production TCM with a control module, transfer the broadcast code and production TCM part number to the control
module label. Do not record information on the access cover.
CAUTION:
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The ignition must be "OFF" when disconnecting or reconnecting the TCM connector, to prevent internal damage to the TCM.
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To prevent possible Electrostatic Discharge damage to the TCM, do not touch the connector pins or soldered components on the circuit board.