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XC90 2.5T AWD L5-2.5L Turbo VIN 59 B5254T2 (2003)

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Diagrams > Diagram Information and Instructions > Page 910

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NOTE:  Do not apply rust solvent spray or grease to the Heated Oxygen Sensor (HO2S) or combined instrument panel connectors.

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Ignition off

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Disconnect the battery negative terminal

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Use compressed air to clean the disconnected connector

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Apply rust solvent spray 1161422 to the disconnected connectors

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Blow clean using compressed air.

NOTE:  Do not fill the protective cover with grease.

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Press grease, P/N 1161417-9, into the terminals directly from the tube

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Check that all the cavities in the connectors are filled

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Use a loose male pin to ensure that contact in sockets is good. The pin should remain in position when pulled gently.

Optical Wiring Harness Check

Optical wiring harness check

Check

Note! Check that special tool 951 2867 MOST instrumentation See: Tools and Equipment/951 2867 MOST Instrumentation is working before
using it. This is done as follows.

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Diagrams > Diagram Information and Instructions > Page 910

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