240 L4-2320cc 2.3L SOHC VIN 83 B230FD (1993)
Data Link Connector: Testing and Inspection
NB. CHECKING DATA LINK CONNECTOR (DLC)
NB1
Checking LED
-Ignition on.
-Press the DLC button.
The LED should light when the button is down.
If the LED does not light
-Check battery power NB2.
If the LED lights
-Check the power supply from the control module NB4.
NB2
Checking The Battery Power
-Ignition on.
Connect a voltmeter between terminal 4 in the connector and GND.
The voltmeter should read battery voltage.
If this value is OK
-Check the GND point NB3.
If the reading is incorrect
-Check the fuse and the wiring to it for breaks.
NB3
Checking The GND Point
