Passat Sedan L4-2.0L (ABA) (1996)
-
Connect VAG 1598/18 test box to ECM wiring harness.
-
Check wiring between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 2 and test box socket 12
Resistance: maximum 1.5 Ohms
If no wiring malfunction is detected:
-
Replace Engine Control Module (ECM) -J220-.
-
Read the readiness code. If DTC memory has been erased, repair must be verified via appropriate display group See Readiness code, creating.
Refer to "On-Board Diagnostics II With VAG 1551". See: Computers and Control Systems/Testing and Inspection
After Three Way Catalytic Converter
OXYGEN SENSOR HEATING, AFTER THREE WAY CATALYTIC CONVERTER, CHECKING
Special tools, testers and auxiliary items
-
VAG 1551/1552 scan tool with VAG 1551/3 adapter cable
-
VAG 1598/18 test box
-
Multimeter (Fluke 83 or equivalent)
-
Connector test kit VW 1594
-
Wiring diagram
Test conditions
-
Fuse 18 OK
Test sequence
-
Engine running at idle
-
Connect VAG 1551/1552 scan tool and select "Engine Electronics" address word 01. Refer to "On-Board Diagnostics II With VAG 1551". See:
Computers and Control Systems/Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -8- to select "Read Measuring Value Block" function OB and press -Q- button to confirm input.
Indicated on display