Yugo Workshop Manuals
Yugo L4-1300cc 1.3L (1991)
Powertrain Management > Computers and Control Systems > Engine Control Module > Component Information > Testing and Inspection > Control Unit Voltage Supply Inspection > Page 517
Engine Control Module: Testing and Inspection
NOTE: YUGO RECALL #91V130 WATER INFILTRATION AT (ECU)
On 1990 and 1991 E.F.I. GV Plus cars there is the possibility of water infiltration at the three studs that support the E.C.U. Check your vehicle
Fig. 3 Bosch Motronic Electronic Engine Control System Terminal Identification
Perform the following test procedure using a suitable digital volt/ohmmeter, referring to Fig 3 for terminal identification.
Locate ECU behind passenger side of instrument panel, then disconnect 35 pin connector from ECU.
With ignition switch in Run position, probe ECU terminal 35 with voltmeter positive lead and ECU terminal 5 with negative lead. If battery
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