Wiring and Component Testing Using VAG1598/31 Test Box
Wiring And Component Check With VAG1598/31 Test Box
NOTE:
- The VAG1598/31 test box is designed so it can be simultaneously connected to the control module wiring harness and to the control module itself.
- This has the advantage of enabling the engine management system to remain fully operational even with the test box connected (for example, when testing signals while the engine is running).
- The instructions for performing the individual tests indicate whether or not the engine control module itself also needs to be connected to the test box.
- Use the hand multimeter Fluke 83 (or equivalent) or the multimeter VAG1715 and the diode test lamp VAG1527 for the checks.
- To connect the testers to VAG1598/31 test box, always use the adapter leads from VAG1594 A connector test kit.
Required special tools and test equipment
VAG1598/31:
Work sequence
- Switch off ignition.
- Pull rubber gasket forward.
- Remove plenum cover forward.
- Remove cover for E-box (in plenum chamber).
- Carefully lever off the retainer bar with a screwdriver -arrow-.
- Release connectors on engine control module and disconnect connectors.
CAUTION!
To prevent damage to the electronic components, switch to the respective measuring range before connecting the measuring cable and observe the test requirements.
- Connect VAG1598/31 test box to wiring harness connector. Also connect the Ground (GND) clamp from test box to Ground (GND). The instructions for performing the individual tests indicate whether or not the engine control module itself also needs to be connected to the test box.
- Carry out test as described in the relevant repair instructions.
After installing the engine control module,carry out the following operation
- Check DTC memory and erase if necessary.
- Generate new readiness code. Readiness Code, Generating
NOTE: At the first learning (adaptation) phase during the "Engine-Basic Setting" the engine might run a little rough at idle and bucks/jerks a little while driving.