S6 V8-4.2L (BBD) (2004)
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Connect multimeter between terminal 2 and 3 for resistance measurement.
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Specified value: 450 ...1000 Ohms
NOTE: Resistance value of the engine speed (RPM) sensor is based on a temperature of 20 degree C. Resistance increases as temperature increases.
If specified value is not obtained:
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Replace engine speed (RPM) sensor.
If specified value is obtained:
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Connect multimeter to terminals 2 and 1 (shielding) and to terminals 3 and 1 (shielding) for resistance measurement.
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Specified value: each infinity Ohms (no continuity)
If specified value is not obtained:
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Replace engine speed (RPM) sensor.
If specified value is obtained:
Checking wire connections
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Connect test box to wiring harness of Engine Control Module (ECM); ECM is not connected. See: Testing and Inspection/Reading and Clearing
Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring Test
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Check the following wire connections for open circuit according to wiring diagram:
Harness connector
Test box
Terminal
Socket