9-3 Hatchback (9400) L4-2.0L Turbo (B205) (2000)
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Connect test lamp 86 11 857 between pin 48 on the control module female connector and pin 25.
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The test lamp should light.
Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness.
Observe the multimeter, test lamp or diagnostic tool while doing this.
Is the function correct?
NO
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See: No Communication With the Trionic T5/Rectifying the Lead - III
YES -
See: No Communication With the Trionic T5/Final Check
Checking Trionic Control Module Power Supply and Ground - II
Checking the Trionic Control Module Power Supply and Ground Connection
Unplug the connector.
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Control module, TRIONIC (430)
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Turn the ignition switch to the ON position.