03-02-2014, 02:49 PM
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#61
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Lieutenant Colonel
Drives: Sprint car
Join Date: May 2013
Location: California
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2743 - P0155
2743 - P0155
2743 - P0155 | | Information saved in | DME | Fault code | 2743 - P0155 | Fault text | Oxygen sensor heater resistance diagnosis before cat. converter, bank 2 | Fault description | O2 Sensor Heater Circuit (Bank 2 Sensor 1) | Condition for fault identification | Test condition: The upper or lower threshold of the resistance values has been violated, above/below 6.0 ohms (K_LSHVK_DIAG_RU) 14.5 ohms (K_LSHVK_DIAG_RO) | | Terminal condition: Engine running | | Voltage condition: Battery voltage > 9V (k_ed_ubmin) | Condition for fault memory entry | min. K_LSHVK_DIAG_ANZ_MESS (100) valid calculations of heater resistance - roughly.1.5 sec. | Action in service | 1. DME software release must be more recent than 07-06-510, fix incorporated since 07-09-521 | | 2. Check plug, wiring harness on pre-cat oxygen sensor LSVK B2, | | 3. If OK, replace oxygen sensor | Fault effect and breakdown warning | MIL lamp on after engine runs 2x /Small influence on drivability | Driver information | Warning light: MIL | Service instruction | None |
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