R32 4Motion V6-3.2L (CBRA) (2008)
Special tools, testers and auxiliary items required
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Multimeter.
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Wiring diagram.
Test requirements
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FuseSB11 OK.
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Battery voltage at least 12.5 volts.
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All electrical consumers such as, lights and rear window defroster, switched off.
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Vehicles with automatic transmission, shift selector lever into position "P" or "N".
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A/C switched off.
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Ground (GND) connections between engine/transmission/chassis OK.
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Ignition switched off.
Test procedure
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Perform a preliminary check to verify the customers complaint. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing
and Procedures/Preliminary Check
Start diagnosis
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Remove the air filter.
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Disconnect the Heated Oxygen Sensor (HO2S) G39 electrical harness connector - 2 -.
Checking internal resistance
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Using a multimeter, check the Heated Oxygen Sensor (HO2S) G39 terminals 3 to 4 for resistance.
Specified value: 2.5 to 10.0 ohms (at approx. 20 degrees C)
If the specification was not obtained:
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Replace the Heated Oxygen Sensor (HO2S) G39.
If the specification was obtained:
Checking voltage supply