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:
