Eurovan V6-2800cc 2.8L (AES) (2000)
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Disconnect (black) 4-pin harness connector to Oxygen sensor (before cat) -G39- -1-.
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Check wiring between Test Box and 4-pin ECM connector for open circuit using wiring diagram, connect as follows:
terminal 3 + socket 42
terminal 4 + socket 20
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wire resistance: 1.5 Ohms
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Check wires at 4-pin connector for shorting to one another.
terminal 4 + socket 42
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specification: infinity Ohms
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Check shielding for short to sensor wiring using wiring diagram, connect as follows:
terminal 4 + socket 56
terminal 3 + socket 56
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specification: infinity Ohms
If wiring OK:
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Replace ECM -J220-.
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Perform Basic setting.
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Read-out Readiness code. Refer to Monitors, Trip and/or Drive Cycle (Readiness Codes)/Readiness Code Checking. See: Testing and Inspection
If DTC memory was erased, create new Readiness code. Refer to Monitors, Trip and/or Drive Cycle (Readiness Codes)/Readiness Code Generating See:
Testing and Inspection
Heater Check
Oxygen Sensor (Before CAT) Heating, Checking
Special tools and equipment
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VAG 1551/VAG 1552 Scan Tool using VAG 1551/3 adapter cable