A4 Sedan V6-2.8L (AFC) (1996)
Crankshaft Position Sensor: Testing and Inspection
Component locations, refer to "Component Overview - I " See: Fuel Delivery and Air Induction/Locations
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All sensors correctly installed, securely connected
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Disconnect (black) harness connector.
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Switch Fluke 83 multimeter to resistance range and connect between CKP sensor connector terminals 1 and 2 (in connector bracket) using jumper
wires from VW 1594 test kit.
Specified value: approx. 1000 ohm
If the specified value is not obtained:
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Replace Crankshaft Position (CKP) sensor.
If the specified value is obtained:
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Connect multimeter between terminal 1 and 3 (GND), then between terminals 2 and 3 (GND).
Specified value: Infinite ohm (open)
If the specified value is not obtained:
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Replace Crankshaft Position (CKP) sensor.
If the specified value is obtained:
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Check wiring for continuity or short between CKP sensor and ECM using wiring diagram.
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Connect VAG 1598/19 test box to ECM harness connector.
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Check CKP sensor shielding for continuity by connecting multimeter between terminal 3 and engine Ground (GND).
Specified value: max. 1 ohm
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Check wiring for continuity between CKP sensor connector terminal 1 and test box socket A9, then between CKP sensor connector terminal 2 and
test box socket A10.
Specified value: max. 1 ohm
If the specified values are not obtained: