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274B - P2629
| Information saved in
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DME
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| Fault code
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274B - P2629
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| Fault text
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Oxygen sensor pump current calibration fault before cat. converter, bank 2
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| Fault description
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O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1)
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| Condition for fault identification
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Test condition: Oxygen sensor is available, oxygen sensor voltage > 4951 mV (K_LAVK_OBD_SA_DIAG_OL)
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| .
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Terminal condition: Engine running - overrun condition
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| .
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Voltage condition: none
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| Condition for fault memory entry
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after a defined SA phase the lag period K_LAVK_OBD_SA_T (2.5 sec) must be completed
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| Action in service
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1. Check plug and wiring harness on pre-cat oxygen sensor LSVK B2 (especially trim circuit wire IA),
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| .
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2. If OK, replace oxygen sensor
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| Fault effect and breakdown warning
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MIL lamp on after engine runs 2x /Small influence on drivability
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| Driver information
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Warning light: MIL
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| Service instruction
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None
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