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Removing and installing lambda probe > < Check lambda probe heater

Octavia Mk1

Test lambda probe signal line and control
Test lambda probe signal line and control
  Note
The lambda probe signal is monitored by the self-diagnosis.
–  Interrogate the fault memory → Chapter.
–  If a lambda probe fault is indicated and the probe heater is o.k., disconnect the lambda probe plug connection.
–  Switch on ignition.
   
–  Use handheld multimeter to measure voltage between the contacts 3 and 4 of connector at the wiring loom.
Specified value: 450 ± 50 mV
If the specified value is reached:
–  Replace lambda probe -G39-.
If the specified value is not reached:
–  Connect test box -VA.G 1598/22 - at wiring loom to the engine control unit → Chapter.
  S24-0185
–  Test following wiring for open circuit, short circuit to positive or earth, if necessary repair.
  S24-0148
Plug on wiring loom, contactTest box -V.A.G 1598/22-
325
426

–  If the wiring is O.K., replace engine control unit → Chapter.
   

Removing and installing lambda probe > < Check lambda probe heater