Test 2: Test of Current Consumption of O2 Sensor Heater of Component G3/1 (O2 Sensor Downstream TWC)

Test of current consumption of O2 sensor heater of component G3/1 (O2 sensor downstream TWC)

Risk of injury from rotating parts!
- Severe injuries from limbs being jammed or squashed may result from rotating parts and in extreme cases the limbs may be sheared off.

Rules of conduct and protective measures
- Do not insert your hand into rotating parts.
- Wear closed and close-fitting work clothes.

Test prerequisite
- The actual value is not o.k.

Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI control module).
- [F.4] 100 <--> 29 [M.29]
- Ignition ON

Note
- Perform the measurement only for a short time so that component G3/1 (O2 sensor downstream TWC) does not overheat.

Specified value
- Amperage[0.3...1.5] A

Question
- Is the measured value okay?

NO
The measured value is not o.k.

Possible cause and remedy
- N10/1f54 (fuse 54)
- Cable of O2 sensor heater of component G3/1 (O2 sensor downstream TWC)
- G3/1 (O2 sensor downstream TWC)

End of test

YES
The measured value is o.k. End of test.