Lambda Control System Test

Special Tools

Oil telethermometer - PN 116 589 272 100:

Test adapter, lambda control system - PN 110 589 1421 00:

Conventional Tools
^ Tachometer - e.g. Sun Electric
^ Digital multimeter (volt-ohmmeter) - e.g. Sun Electric DMM-5

Quick Test
- Connect test adapter to plug of electronic control unit for lambda system and digital multimeter (volt-ohmmeter) to test adapter.




1) With cold engine, the reading will be 0 ohm due to the closed 16°C (61°F) oil temperature switch.


I Voltage Supply Test For The Electronic Control Unit

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Fig. 1:

II Testing Of Temperature Switch-Oil 16°C (61°F)
[Oil Temperature Below 13°C (55°F)]

Fig. 1:

Fig. 2:

Fig. 3:

III Testing Of Temperature Switch-Oil 16°C (61°F)
[Oil Temperature Above 20°C (68°F)]

Fig. 1:

Fig. 2:

IV Testing Of Throttle Valve Switch [idle Position, Engine Oil Temperature Above 20°C (68°F)]

Fig. 1:

Fig. 2:

Fig. 3:

Fig. 4:

V Testing Of The Throttle Valve Switch [full Throttle Position, Engine Oil Temperature Above 20°C (68°F)]





VI Testing of the Frequency Valve

Fig. 1:

Fig. 2:

Fig. 3:

Fig. 4: